Getting boot time below 3 seconds

Brent · July 20, 2012, 9:04pm

As the subject says, I would like to shrink the boot time below 3 seconds. I’ve seen all kinds of YouTube videos, read through the SwiftBeagle site, but still have some questions. First of all, I am currently at an 8 second boot, after disabling GateOne, Cloud9 and Bone101.

Here is the hardware I need:

LCD7 cape
USB
GPIO
CAN Bus

Now where do I begin? As far as optimizing u-boot, I know that I can change the boot delay from 1 to 0 to gain a second. Anything else in u-boot that I can do?

I know that I can remove a lot of the stuff that’s not needed in the kernel, but the kernel confuses me. There are so many options in the menuconfig that I don’t know what half of them do.

I’m noticing that it takes 3 seconds to do a recovery of the EXT4-fs (see below). Is there a way to optimize this?
[ 0.796186] PM: Adding info for No Bus:ep_00
[ 3.725913] EXT4-fs (mmcblk0p2): recovery complete

Koen_Kooi · July 21, 2012, 6:42am

Is that a clean reboot? And is nothing happening in between? Have you tried using bootchart? If you boot with initcall_debug=1 in cmdline you can get pretty accurate timings for the kernel as well. Attached is the bootchart for the bone in the gardensheed that logs the outside temperature.

regards,

Koen

Brent · July 21, 2012, 1:55pm

Koen,
I have not tried bootchart… I did watch your video on YouTube about a 1 second boot… very interesting, but I didn’t quite understand everything… I have a lot to learn yet!

So is the best place to pass arguments to the kernel in the uEnv.txt file?

Brent · July 23, 2012, 9:08pm

I trimmed a little more from the kernel and used the minimal rootfs from Angstrom-Distribution.org and it now takes 3 seconds from the kernel being uncompressed to the login. HOWEVER, u-boot takes about 3-4 seconds, so this needs to be optimized. Any suggestions on where to start with this? It seems that someone would have reduced the u-boot boot time to pretty much nothing by now… anyone care to share what they did or post their source?

Mark_Lazarewicz · July 23, 2012, 10:03pm

Uboot should not take long. how are you measuring this? are you sure you dont count the time it takes to load the kernel into RAM?

— On Mon, 7/23/12, Brent brents_3@hotmail.com wrote:

> From: Brent brents_3@hotmail.com
> Subject: [beagleboard] Re: Getting boot time below 3 seconds
> To: beagleboard@googlegroups.com
> Date: Monday, July 23, 2012, 4:08 PM
>
> I trimmed a little more from the kernel and used the minimal rootfs from Angstrom-Distribution.org and it now takes 3 seconds from the kernel being uncompressed to the login. HOWEVER, u-boot takes about 3-4 seconds, so this needs to be optimized. Any suggestions on where to start with this? It seems that someone would have reduced the u-boot boot time to pretty much nothing by now… anyone care to share what they did or post their source?
>
> On Friday, July 20, 2012 5:04:26 PM UTC-4, Brent wrote:
>
> > As the subject says, I would like to shrink the boot time below 3 seconds. I’ve seen all kinds of YouTube videos, read through the SwiftBeagle site, but still have some questions. First of all, I am currently at an 8 second boot, after disabling GateOne, Cloud9 and Bone101.
> >
> > Here is the hardware I need:
> > 1. LCD7 cape
> > 2. USB
> > 3. GPIO
> > 4. CAN Bus
> >
> > Now where do I begin? As far as optimizing u-boot, I know that I can change the boot delay from 1 to 0 to gain a second. Anything else in u-boot that I can do?
> >
> > I know that I can remove a lot of the stuff that’s not needed in the kernel, but the kernel confuses me. There are so many options in the menuconfig that I don’t know what half of them do.
> >
> > I’m noticing that it takes 3 seconds to do a recovery of the EXT4-fs (see below). Is there a way to optimize this?
> > [ 0.796186] PM: Adding info for No Bus:ep_00
> > [ 3.725913] EXT4-fs (mmcblk0p2): recovery complete
>
> – To join: http://beagleboard.org/discuss
> To unsubscribe from this group, send email to:
> beagleboard+unsubscribe@googlegroups.com
> Frequently asked questions: http://beagleboard.org/faq

|

jkridner · July 24, 2012, 12:15pm

Koen,
I have not tried bootchart… I did watch your video on YouTube about a 1 second boot… very interesting, but I didn’t quite understand everything… I have a lot to learn yet!

So is the best place to pass arguments to the kernel in the uEnv.txt file?

For the fastest possible boot, you’d likely want to compile your bootargs into u-boot and not read uenv.txt.

jkridner · July 24, 2012, 12:18pm

I trimmed a little more from the kernel and used the minimal rootfs from Angstrom-Distribution.org and it now takes 3 seconds from the kernel being uncompressed to the login. HOWEVER, u-boot takes about 3-4 seconds, so this needs to be optimized. Any suggestions on where to start with this? It seems that someone would have reduced the u-boot boot time to pretty much nothing by now… anyone care to share what they did or post their source?

ELinux.org has some resources for serial logging. It might be good if you shared your timed logs. The file system has been seen to be a bottleneck in the past.

Andrew_Bradford · July 24, 2012, 12:31pm

Newer u-boot sources have improved the ext3/4 load from mmc times, make
sure you're using those sources. I believe Koen saw extload times
reduce to around 20% of the unpatched times (sorry, from memory, no
link).

You can also get a faster SD card, that will reduce access times for
file system reads and kernel load from mmc.

Increase your serial port speed to 1Mbps or higher, the 115200 default
speed can add time to your boot if there's much printed by the kernel.
Quiet bootarg can help here, too.

You could build an uncompressed kernel, if you're currently not, if
kernel decompression is really taking much time. But gauge this
tradeoff with the extload duration to see if it's worth it.

Don't enable a serial port console. I believe there's about half a
second during kernel start dedicated to putting a console on the tty
(although I'm not sure exactly what happens during that time...).

-Andrew

Koen_Kooi · July 24, 2012, 12:54pm

I trimmed a little more from the kernel and used the minimal rootfs from
Angstrom-Distribution.org and it now takes 3 seconds from the kernel being
uncompressed to the login. HOWEVER, u-boot takes about 3-4 seconds, so
this needs to be optimized. Any suggestions on where to start with this?
It seems that someone would have reduced the u-boot boot time to pretty
much nothing by now... anyone care to share what they did or post their
source?

Newer u-boot sources have improved the ext3/4 load from mmc times, make
sure you're using those sources. I believe Koen saw extload times
reduce to around 20% of the unpatched times (sorry, from memory, no
link).

20 times, not 20%, it was that bad

Brent · July 25, 2012, 9:23pm

Well, what is the best way to measure uBoot? I ran the bootchart and it’s over 3 seconds until things start happening, so I’m making the assumption that u-boot takes that long to load…

See the attached file from bootchart. It’s a little blurry because I can only upload 2000x2000 images. If you want I can email you the .svg file.

Andrew_Bradford · July 26, 2012, 12:20pm

http://elinux.org/Grabserial can be helpful for looking at timing of
the boot.

-Andrew

Mark_Lazarewicz · July 26, 2012, 1:56pm

there was a prior email saying loading time was improved. did you see that

SD card speed and loading kernel were factors addressed.

claims of 20x improvement were promised (-:

as far as your other question about splash screen faster I dont have interest or knowledge

sound like a waste of time but I dont know your erquirements

what in the world is a boot chart? some sw trace tool run on source???

a jtag and good debugger ide to measure real time spent in uboot for really accurate

Brent · July 27, 2012, 12:03pm

Here is what I get from grabserial… I know there is a 1 second delay that can be changed to 0, but I’m still not happy with u-boot. As someone suggested, I’ll try building all kernel arguments into u-boot instead of using uEnv.txt and see if that helps much.

Opening serial port /dev/ttyUSB1
115200:8N1:xonxoff=0:rtcdtc=0
Program will end in 30 seconds
Printing timing information for each line
Matching pattern ‘Starting kernel.*’ to set base time
Use Control-C to stop…
[0.000001 0.000001]
[0.000405 0.000404] U-Boot SPL 2011.09-00000-gf63b270-dirty (Apr 24 2012 - 09:51:01)
[0.010531 0.010126] Texas Instruments Revision detection unimplemented
[0.520104 0.509573] OMAP SD/MMC: 0
[0.580368 0.060264] reading u-boot.img
[0.590224 0.009856] reading u-boot.img
[0.620390 0.030166]
[0.620482 0.000092]
[0.620514 0.000032] U-Boot 2011.09-00000-gf63b270-dirty (Apr 24 2012 - 09:51:01)
[0.621577 0.001063]
[0.621613 0.000036] I2C: ready
[0.670303 0.048690] DRAM: 256 MiB
[1.050050 0.379747] No daughter card present
[1.050555 0.000505] NAND: HW ECC Hamming Code selected
[1.051167 0.000612] No NAND device found!!!
[1.051620 0.000453] 0 MiB
[1.051769 0.000149] MMC: OMAP SD/MMC: 0
[1.060651 0.008882] *** Warning - readenv() failed, using default environment
[1.066634 0.005983]
[1.110211 0.043577] Net: cpsw
[1.110508 0.000297] Hit any key to stop autoboot: 0
[2.180212 1.069704] SD/MMC found on device 0
[2.191694 0.011482] reading uEnv.txt
[2.194353 0.002659]
[2.194384 0.000031] 14 bytes read
[2.194566 0.000182] Loaded environment from uEnv.txt
[2.194975 0.000409] Importing environment from mmc …
[2.206105 0.011130] Loading file “/boot/uImage” from mmc device 0:2 xxa2
[2.410143 0.204038] 3145984 bytes read
[2.410547 0.000404] ## Booting kernel from Legacy Image at 80007fc0 …
[2.420523 0.009976] Image Name: Linux-3.2.21+
[2.421053 0.000530] Image Type: ARM Linux Kernel Image (uncompressed)
[2.430350 0.009297] Data Size: 3145920 Bytes = 3 MiB
[2.433466 0.003116] Load Address: 80008000
[2.435549 0.002083] Entry Point: 80008000
[2.438275 0.002726] Verifying Checksum … OK
[2.470121 0.031846] XIP Kernel Image … OK
[2.480767 0.010646] OK
[2.480813 0.000046]
[2.480827 0.000014] Starting kernel …
[0.009598 0.009598]
[0.029180 0.019582] Uncompressing Linux… done, booting the kernel.
[2.954216 2.925036] systemd-fsck[59]: Angstrom: clean, 4806/218592 files, 46635/873534 blocks
[5.410707 2.456491]
[5.426543 0.015836] .—O---.
[5.431993 0.005450] | | .-. o o
[5.436936 0.004943] | | |-----.-----.-----.| | .----…-----.-----.
[5.443069 0.006133] | | | __ | —’| ‘–.| .-’| | |
[5.454040 0.010971] | | | | | |— || --’| | | ’ | | | |
[5.454932 0.000892] ‘—’---’–’--’–. |-----’’----’’–’ ‘-----’-’-’-’
[5.457144 0.002212] -’ |
[5.457531 0.000387] ‘—’
[5.459227 0.001696]
[5.459261 0.000034] The Angstrom Distribution beaglebone ttyO0
[5.466914 0.007653]
[5.466954 0.000040] Angstrom v2012.01-core - Kernel 3.2.21+
[5.467643 0.000689]
[5.476671 0.009028] beaglebone login:

Andrew_Bradford · July 27, 2012, 12:26pm

Here is what I get from grabserial... I know there is a 1 second delay that
can be changed to 0, but I'm still not happy with u-boot. As someone
suggested, I'll try building all kernel arguments into u-boot instead of
using uEnv.txt and see if that helps much.
Opening serial port /dev/ttyUSB1
115200:8N1:xonxoff=0:rtcdtc=0
Program will end in 30 seconds
Printing timing information for each line
Matching pattern 'Starting kernel.*' to set base time

Don't use any matching pattern. Grabserial will start counting at the
first character on the serial port. That'll give you a full bootup
timing view, rather than resetting the counter when the kernel goes.

It'll look like my Debian Grabserial log [1]. No counter resetting.

[1]: https://gist.github.com/3169679

Use Control-C to stop...
[0.000001 0.000001]
[0.000405 0.000404] U-Boot SPL 2011.09-00000-gf63b270-dirty (Apr 24 2012 -
09:51:01)
[0.010531 0.010126] Texas Instruments Revision detection unimplemented
[0.520104 0.509573] OMAP SD/MMC: 0

Look for big deltas, like that one. Half a second delta there. Go in
the SPL code and fix that, then, BAM half second faster boot.
Granted, I have no idea what's happening there, but I assume DDR and
mmc setup are needed. Probably some clock setup, too.

But, if you find things like USB or Ethernet in there, rip them out if
you don't need them and care about boot time.

[0.580368 0.060264] reading u-boot.img
[0.590224 0.009856] reading u-boot.img
[0.620390 0.030166]
[0.620482 0.000092]
[0.620514 0.000032] U-Boot 2011.09-00000-gf63b270-dirty (Apr 24 2012 -
09:51:01)
[0.621577 0.001063]
[0.621613 0.000036] I2C: ready
[0.670303 0.048690] DRAM: 256 MiB
[1.050050 0.379747] No daughter card present

If you don't have daughter cards that need detecting here, another 0.4
seconds. For example, if you have a kernel board-file that sets up
your muxing or you hard code it into u-boot.

[1.050555 0.000505] NAND: HW ECC Hamming Code selected
[1.051167 0.000612] No NAND device found!!!
[1.051620 0.000453] 0 MiB
[1.051769 0.000149] MMC: OMAP SD/MMC: 0
[1.060651 0.008882] *** Warning - readenv() failed, using default
environment
[1.066634 0.005983]
[1.110211 0.043577] Net: cpsw
[1.110508 0.000297] Hit any key to stop autoboot: 0
[2.180212 1.069704] SD/MMC found on device 0

1 second there. Get rid of 1 second "hit any key". Although setting
it to 0 still won't make this time be 0, unless you completely remove
that part from the u-boot code (which should be doable).

[2.191694 0.011482] reading uEnv.txt
[2.194353 0.002659]
[2.194384 0.000031] 14 bytes read
[2.194566 0.000182] Loaded environment from uEnv.txt
[2.194975 0.000409] Importing environment from mmc ...

If you code your env into u-boot, at most, you'll save those 5 lines
worth of time. Sum total of 15 ms or so. Not really worth doing till
you save the 1+ seconds I mentioned above.

[2.206105 0.011130] Loading file "/boot/uImage" from mmc device 0:2 xxa2
[2.410143 0.204038] 3145984 bytes read
[2.410547 0.000404] ## Booting kernel from Legacy Image at 80007fc0 ...
[2.420523 0.009976] Image Name: Linux-3.2.21+
[2.421053 0.000530] Image Type: ARM Linux Kernel Image (uncompressed)
[2.430350 0.009297] Data Size: 3145920 Bytes = 3 MiB
[2.433466 0.003116] Load Address: 80008000
[2.435549 0.002083] Entry Point: 80008000
[2.438275 0.002726] Verifying Checksum ... OK
[2.470121 0.031846] XIP Kernel Image ... OK
[2.480767 0.010646] OK
[2.480813 0.000046]
[2.480827 0.000014] Starting kernel ...
[0.009598 0.009598]

Don't restart the counter here. See comments above, near top.

[0.029180 0.019582] Uncompressing Linux... done, booting the kernel.
[2.954216 2.925036] systemd-fsck[59]: Angstrom: clean, 4806/218592 files,
46635/873534 blocks
[5.410707 2.456491]
[5.426543 0.015836] .---O---.
[5.431993 0.005450] | | .-. o o
[5.436936 0.004943] | | |-----.-----.-----.| | .----..-----.-----.
[5.443069 0.006133] | | | __ | ---'| '--.| .-'| | |
[5.454040 0.010971] | | | | | |--- || --'| | | ' | | | |
[5.454932 0.000892] '---'---'--'--'--. |-----''----''--' '-----'-'-'-'
[5.457144 0.002212] -' |
[5.457531 0.000387] '---'
[5.459227 0.001696]
[5.459261 0.000034] The Angstrom Distribution beaglebone ttyO0
[5.466914 0.007653]
[5.466954 0.000040] Angstrom v2012.01-core - Kernel 3.2.21+
[5.467643 0.000689]
[5.476671 0.009028] beaglebone login:

An 8 second boot is pretty good. Especially if you're enabling
networking and starting a few services.

-Andrew

mriksman · June 28, 2013, 8:42am

Say someone new to BB/Linux wanted to achieve these faster boots.

Is there any tutorial written that people know of?

Raghavendra_Bhovi · October 17, 2018, 12:07pm

Hi Brent,

i am new to linux and beaglebone ,I would like to decrease the boot time below 5 seconds

Here is the hardware I need:

LCD7 cape
2.buzzer cape
USB
GPIO

some services are disabled apache2,connman,avahi,cups then also it is taking 38sec please tell me how to decrease and what are the places

whatever booting i captured in grabseral pasted bellow and what are the services contains please tell me what are the service i can disable also

hopefully i am waiting for your repay and i am not able to change os also because this os is customer given

root@ubuntu-OptiPlex-7010:/home/ubuntu/sitara/grabserial-1.9.3# grabserial -d /dev/ttyUSB0 -t
[0.000000 0.000000]
[2.258079 2.258079] U-Boot SPL 2017.11-dirty (Dec 20 2017 - 16:41:20)
[2.317568 0.059489] Trying to boot from MMC2
[2.420104 0.102536]
[2.420270 0.000166]
[2.420332 0.000062] U-Boot 2017.11-dirty (Dec 20 2017 - 16:41:20 -0500)
[2.424920 0.004588]
[2.425047 0.000127] CPU : AM335X-GP rev 2.1
[2.427548 0.002501] I2C: ready
[2.481161 0.053613] DRAM: 512 MiB
[2.533894 0.052733] No match for driver ‘omap_hsmmc’
[2.536707 0.002813] No match for driver ‘omap_hsmmc’
[2.539666 0.002959] Some drivers were not found
[2.542213 0.002547] Reset Source: Power-on reset has occurred.
[2.547592 0.005379] MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
[2.550917 0.003325] Using default environment
[2.553417 0.002500]
[2.616691 0.063274] Board: BeagleBone Black
[2.619111 0.002420] not set. Validating first E-fuse MAC
[2.676317 0.057206] BeagleBone Black:
[2.680430 0.004113] BeagleBone: cape eeprom: i2c_probe: 0x54:
[2.684424 0.003994] BeagleBone: cape eeprom: i2c_probe: 0x55:
[2.688557 0.004133] BeagleBone: cape eeprom: i2c_probe: 0x56:
[2.692551 0.003994] BeagleBone: cape eeprom: i2c_probe: 0x57:
[2.696925 0.004374] Net: eth0: MII MODE
[2.704216 0.007291] cpsw, usb_ether
[2.706461 0.002245] Press SPACE to abort autoboot in 2 seconds
[4.708239 2.001778] board_name=[A335BNLT] …
[4.711842 0.003603] board_rev=[00C0] …
[4.730736 0.018894] Card did not respond to voltage select!
[4.734273 0.003537] mmc_init: -95, time 12
[4.745477 0.011204] Card did not respond to voltage select!
[4.748879 0.003402] mmc_init: -95, time 13
[4.761916 0.013037] Card did not respond to voltage select!
[4.765493 0.003577] mmc_init: -95, time 12
[4.768377 0.002884] gpio: pin 56 (gpio 56) value is 0
[4.771471 0.003094] gpio: pin 55 (gpio 55) value is 0
[4.774490 0.003019] gpio: pin 54 (gpio 54) value is 0
[4.777506 0.003016] gpio: pin 53 (gpio 53) value is 1
[4.790757 0.013251] Card did not respond to voltage select!
[4.794340 0.003583] mmc_init: -95, time 12
[4.805846 0.011506] Card did not respond to voltage select!
[4.809343 0.003497] mmc_init: -95, time 12
[4.872930 0.063587] switch to partitions #0, OK
[4.875456 0.002526] mmc1(part 0) is current device
[4.947356 0.071900] Scanning mmc 1:1…
[5.091366 0.144010] gpio: pin 56 (gpio 56) value is 0
[5.094372 0.003006] gpio: pin 55 (gpio 55) value is 0
[5.097475 0.003103] gpio: pin 54 (gpio 54) value is 0
[5.100474 0.002999] gpio: pin 53 (gpio 53) value is 1
[5.164785 0.064311] switch to partitions #0, OK
[5.167162 0.002377] mmc1(part 0) is current device
[5.230241 0.063079] gpio: pin 54 (gpio 54) value is 1
[5.371750 0.141509] Checking for: /uEnv.txt …
[5.400871 0.029121] Checking for: /boot.scr …
[5.430097 0.029226] Checking for: /boot/boot.scr …
[5.452366 0.022269] Checking for: /boot/uEnv.txt …
[5.472378 0.020012] gpio: pin 55 (gpio 55) value is 1
[5.493233 0.020855] 2816 bytes read in 14 ms (196.3 KiB/s)
[5.497607 0.004374] Loaded environment from /boot/uEnv.txt
[5.502011 0.004404] debug: [dtb=am335x-boneblack-emmc-overlay.dtb] …
[5.507114 0.005103] Using: dtb=am335x-boneblack-emmc-overlay.dtb …
[5.511481 0.004367] Checking if uname_r is set in /boot/uEnv.txt…
[5.515991 0.004510] gpio: pin 56 (gpio 56) value is 1
[5.519478 0.003487] Running uname_boot …
[5.545006 0.025528] loading /boot/vmlinuz-4.9.45-ti-r57 …
[6.169266 0.624260] 9504896 bytes read in 617 ms (14.7 MiB/s)
[6.174621 0.005355] uboot_overlays: dtb=am335x-boneblack-emmc-overlay.dtb in /boot/uEnv.txt, unable to use [uboot_base_dtb=am335x-boneblack-uboot.dtb] …
[6.223650 0.049029] loading /boot/dtbs/4.9.45-ti-r57/am335x-boneblack-emmc-overlay.dtb …
[6.271147 0.047497] 55816 bytes read in 38 ms (1.4 MiB/s)
[6.275621 0.004474] uboot_overlays: [fdt_buffer=0x60000] …
[6.315642 0.040021] uboot_overlays: loading /lib/firmware/AM335X-20-00A0.dtbo …
[6.356391 0.040749] 378 bytes read in 32 ms (10.7 KiB/s)
[6.414033 0.057642] uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo …
[6.466642 0.052609] 1105 bytes read in 44 ms (24.4 KiB/s)
[6.528396 0.061754] uboot_overlays: loading /lib/firmware/BB-HDMI-TDA998x-00A0.dtbo …
[6.582033 0.053637] 4169 bytes read in 44 ms (91.8 KiB/s)
[6.749274 0.167241] uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo …
[6.873035 0.123761] 695 bytes read in 115 ms (5.9 KiB/s)
[7.059653 0.186618] uboot_overlays: loading /lib/firmware/univ-bbb-EVA-00A0.dtbo …
[7.242399 0.182746] 54817 bytes read in 173 ms (308.6 KiB/s)
[8.746179 1.503780] loading /boot/initrd.img-4.9.45-ti-r57 …
[9.175826 0.429647] 6448261 bytes read in 422 ms (14.6 MiB/s)
[9.182972 0.007146] debug: [console=ttyO0,115200n8 bone_capemgr.disable_partno=univ-hdmi bone_capemgr.enable_partno=BB-BONE-4D5N-01,BB-BONE-4D5R-01,univ-nhdmi,DVK531-PWM-01 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet] …
[9.208187 0.025215] debug: [bootz 0x82000000 0x88080000:626485 88000000] …
[9.214474 0.006287] ## Flattened Device Tree blob at 88000000
[9.218202 0.003728] Booting using the fdt blob at 0x88000000
[9.222693 0.004491] Loading Ramdisk to 8f9d9000, end 8ffff485 … OK
[9.280399 0.057706] reserving fdt memory region: addr=88000000 size=7b000
[9.285929 0.005530] Loading Device Tree to 8f95b000, end 8f9d8fff … OK
[9.303197 0.017268]
[9.303241 0.000044] Starting kernel …
[9.305067 0.001826]
[12.201267 2.896200] [ 0.001666] clocksource_probe: no matching clocksources found
[12.206980 0.005713] [ 2.439879] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[12.451892 0.244912] [ 2.696883] omap_voltage_late_init: Voltage driver support not added
[12.459407 0.007515] [ 2.704411] PM: Cannot get wkup_m3_ipc handle
[12.720010 0.260603] [ 2.965015] bone_capemgr bone_capemgr: slot #0: auto loading handled by U-Boot
[12.727373 0.007363] [ 2.972440] bone_capemgr bone_capemgr: slot #1: auto loading handled by U-Boot
[12.734745 0.007372] [ 2.979833] bone_capemgr bone_capemgr: slot #2: auto loading handled by U-Boot
[12.742145 0.007400] [ 2.987178] bone_capemgr bone_capemgr: slot #3: auto loading handled by U-Boot
[12.749419 0.007274] [ 2.994513] bone_capemgr bone_capemgr: slot #4: override
[12.754756 0.005337] [ 2.999882] bone_capemgr bone_capemgr: slot #4: auto loading handled by U-Boot
[12.762121 0.007365] [ 3.007188] bone_capemgr bone_capemgr: slot #5: override
[12.767495 0.005374] [ 3.012551] bone_capemgr bone_capemgr: slot #5: auto loading handled by U-Boot
[12.774756 0.007261] [ 3.019841] bone_capemgr bone_capemgr: slot #6: override
[12.780119 0.005363] [ 3.025201] bone_capemgr bone_capemgr: slot #6: auto loading handled by U-Boot
[12.787371 0.007252] [ 3.032491] bone_capemgr bone_capemgr: slot #7: override
[12.792746 0.005375] [ 3.037851] bone_capemgr bone_capemgr: slot #7: auto loading handled by U-Boot
[23.001960 10.209214] rootfs: recovering journal
[23.159235 0.157275] rootfs: clean, 122374/233392 files, 750363/932864 blocks
[24.774879 1.615644] [FAILED] Failed to start Load Kernel Modules.
[24.785007 0.010128] See ‘systemctl status systemd-modules-load.service’ for details.
[24.800740 0.015733] [DEPEND] Dependency failed for roboticscape.
[24.815518 0.014778] [ OK ] Started Create list of required sta…vice nodes for the current kernel.
[24.854019 0.038501] [ OK ] Started Remount Root and Kernel File Systems.
[24.895020 0.041001] Starting udev Coldplug all Devices…
[24.944369 0.049349] Starting Load/Save Random Seed…
[24.970383 0.026014] Starting Create Static Device Nodes in /dev…
[25.018238 0.047855] Mounting Configuration File System…
[25.101765 0.083527] Mounting FUSE Control File System…
[25.182644 0.080879] Starting Apply Kernel Variables…
[25.318500 0.135856] [ OK ] Mounted Configuration File System.
[25.350424 0.031924] [ OK ] Mounted FUSE Control File System.
[25.365690 0.015266] [ OK ] Started Journal Service.
[25.375739 0.010049] [ OK ] Started Load/Save Random Seed.
[25.399372 0.023633] [ OK ] Started Create Static Device Nodes in /dev.
[25.442013 0.042641] [ OK ] Started Apply Kernel Variables.
[25.492624 0.050611] [ OK ] Reached target Local File Systems (Pre).
[25.504954 0.012330] [ OK ] Reached target Local File Systems.
[25.529853 0.024899] Starting Raise network interfaces…
[25.567749 0.037896] Starting udev Kernel Device Manager…
[25.612002 0.044253] Starting Flush Journal to Persistent Storage…
[25.887756 0.275754] [ OK ] Started Flush Journal to Persistent Storage.
[25.993397 0.105641] Starting Create Volatile Files and Directories…
[26.257757 0.264360] [ OK ] Started Create Volatile Files and Directories.
[26.356775 0.099018] [ OK ] Started Entropy daemon using the HAVEGE algorithm.
[26.416636 0.059861] Starting Update UTMP about System Boot/Shutdown…
[26.513027 0.096391] Starting Network Time Synchronization…
[26.572513 0.059486] [ OK ] Started udev Kernel Device Manager.
[26.771020 0.198507] [ OK ] Started Update UTMP about System Boot/Shutdown.
[27.151929 0.380909] [ OK ] Started Network Time Synchronization.
[27.185730 0.033801] [ OK ] Reached target System Time Synchronized.
[27.736548 0.550818] [ OK ] Started Raise network interfaces.
[27.760300 0.023752] [ OK ] Reached target Network.
[27.772898 0.012598] [ OK ] Reached target Network is Online.
[27.857005 0.084107] [ OK ] Started udev Coldplug all Devices.
[27.872300 0.015295] [ OK ] Reached target System Initialization.
[27.889137 0.016837] [ OK ] Started Daily Cleanup of Temporary Directories.
[27.908659 0.019522] [ OK ] Started Daily apt download activities.
[27.921272 0.012613] [ OK ] Listening on D-Bus System Message Bus Socket.
[27.937195 0.015923] [ OK ] Listening on node-red.socket.
[27.952112 0.014917] [ OK ] Listening on GPS (Global Positioning System) Daemon Sockets.
[27.968824 0.016712] [ OK ] Reached target Sockets.
[27.980837 0.012013] [ OK ] Reached target Basic System.
[28.023793 0.042956] Starting Cape Manager Service…
[28.063422 0.039629] [ OK ] Started Regular background program processing daemon.
[28.140558 0.077136] Starting Login Service…
[28.214676 0.074118] Starting LSB: Start daemon at boot time…
[28.280930 0.066254] Starting OpenBSD Secure Shell server…
[28.341060 0.060130] Starting LSB: Advanced IEEE 802.11 management daemon…
[28.455303 0.114243] Starting Generic Board Startup…
[28.519182 0.063879] Starting LSB: Load kernel modules needed to enable cpufreq scaling…
[28.603817 0.084635] Starting Permit User Sessions…
[28.668811 0.064994] [ OK ] Started D-Bus System Message Bus.
[29.229324 0.560513] Starting LSB: Start busybox udhcpd at boot time…
[29.292700 0.063376] Starting LSB: BSD lpr/lpd line printer spooling system…
[29.309361 0.016661] [ OK ] Started Daily apt upgrade and clean activities.
[29.324755 0.015394] [ OK ] Reached target Timers.
[29.443453 0.118698] [ OK ] Started Cape Manager Service.
[29.531453 0.088000] [ OK ] Started LSB: Advanced IEEE 802.11 management daemon.
[29.571205 0.039752] [ OK ] Started Permit User Sessions.
[29.622078 0.050873] [ OK ] Started LSB: BSD lpr/lpd line printer spooling system.
[29.988343 0.366265] [ OK ] Started OpenBSD Secure Shell server.
[30.052845 0.064502] [ OK ] Started LSB: Start daemon at boot time.
[30.243712 0.190867] [ OK ] Started Login Service.
[30.350842 0.107130] [ OK ] Started LSB: Start busybox udhcpd at boot time.
[31.059483 0.708641] [ OK ] Started LSB: Load kernel modules needed to enable cpufreq scaling.
[31.115596 0.056113] Starting LSB: set CPUFreq kernel parameters…
[31.641615 0.526019] [ OK ] Started LSB: set CPUFreq kernel parameters.
[31.708367 0.066752] Starting zui…
[33.545254 1.836887] Stopping LSB: Start busybox udhcpd at boot time…
[33.890743 0.345489] [ OK ] Stopped LSB: Start busybox udhcpd at boot time.
[34.332412 0.441669] Starting dnsmasq - A lightweight DHCP and caching DNS server…
[34.820184 0.487772] [ OK ] Found device /dev/ttyS0.
[34.916310 0.096126] [ OK ] Started Serial Getty on ttyS0.
[34.933546 0.017236] [ OK ] Reached target Login Prompts.
[35.369065 0.435519] [ OK ] Started dnsmasq - A lightweight DHCP and caching DNS server.
[35.408325 0.039260] [ OK ] Reached target Host and Network Name Lookups.
[40.975841 5.567516]
[40.977017 0.001176] Debian GNU/Linux 9 ttrhvt.0941 ttyS0
[40.980298 0.003281]
[40.980405 0.000107] BeagleBoard.org Debian Image 2017-08-31
[40.984193 0.003788]
[40.984225 0.000032] Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
[40.990166 0.005941]
[40.990277 0.000111] default username:password is [debian:temppwd]
[40.994423 0.004146]
[40.999580 0.005157] ttrhvt login: ^Z
[29]+ Stopped grabserial -d /dev/ttyUSB0 -t
root@ubuntu-OptiPlex-7010:/home/ubuntu/sitara/grabserial-1.9.3# grabserial -d /dev/ttyUSB0 -t
[0.000000 0.000000]
[0.000172 0.000172] U-Boot SPL 2017.11-dirty (Dec 20 2017 - 16:41:20)
[0.059580 0.059408] Trying to boot from MMC2
[0.162369 0.102789]
[0.162530 0.000161]
[0.162607 0.000077] U-Boot 2017.11-dirty (Dec 20 2017 - 16:41:20 -0500)
[0.167208 0.004601]
[0.167314 0.000106] CPU : AM335X-GP rev 2.1
[0.169964 0.002650] I2C: ready
[0.223461 0.053497] DRAM: 512 MiB
[0.276589 0.053128] No match for driver ‘omap_hsmmc’
[0.279315 0.002726] No match for driver ‘omap_hsmmc’
[0.282324 0.003009] Some drivers were not found
[0.284924 0.002600] Reset Source: Power-on reset has occurred.
[0.290255 0.005331] MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
[0.293568 0.003313] Using default environment
[0.295974 0.002406]
[0.359330 0.063356] Board: BeagleBone Black
[0.361747 0.002417] not set. Validating first E-fuse MAC
[0.418832 0.057085] BeagleBone Black:
[0.423079 0.004247] BeagleBone: cape eeprom: i2c_probe: 0x54:
[0.427071 0.003992] BeagleBone: cape eeprom: i2c_probe: 0x55:
[0.431202 0.004131] BeagleBone: cape eeprom: i2c_probe: 0x56:
[0.435196 0.003994] BeagleBone: cape eeprom: i2c_probe: 0x57:
[0.439608 0.004412] Net: eth0: MII MODE
[0.446811 0.007203] cpsw, usb_ether
[0.448942 0.002131] Press SPACE to abort autoboot in 2 seconds
[2.451083 2.002141] board_name=[A335BNLT] …
[2.454869 0.003786] board_rev=[00C0] …
[2.473660 0.018791] Card did not respond to voltage select!
[2.477115 0.003455] mmc_init: -95, time 12
[2.488394 0.011279] Card did not respond to voltage select!
[2.491780 0.003386] mmc_init: -95, time 13
[2.504847 0.013067] Card did not respond to voltage select!
[2.508369 0.003522] mmc_init: -95, time 12
[2.511269 0.002900] gpio: pin 56 (gpio 56) value is 0
[2.514238 0.002969] gpio: pin 55 (gpio 55) value is 0
[2.517367 0.003129] gpio: pin 54 (gpio 54) value is 0
[2.520368 0.003001] gpio: pin 53 (gpio 53) value is 1
[2.533869 0.013501] Card did not respond to voltage select!
[2.537248 0.003379] mmc_init: -95, time 12
[2.548901 0.011653] Card did not respond to voltage select!
[2.552240 0.003339] mmc_init: -95, time 12
[2.615942 0.063702] switch to partitions #0, OK
[2.618143 0.002201] mmc1(part 0) is current device
[2.690254 0.072111] Scanning mmc 1:1…
[2.834129 0.143875] gpio: pin 56 (gpio 56) value is 0
[2.837143 0.003014] gpio: pin 55 (gpio 55) value is 0
[2.840146 0.003003] gpio: pin 54 (gpio 54) value is 0
[2.843244 0.003098] gpio: pin 53 (gpio 53) value is 1
[2.907378 0.064134] switch to partitions #0, OK
[2.909889 0.002511] mmc1(part 0) is current device
[2.972883 0.062994] gpio: pin 54 (gpio 54) value is 1
[3.114387 0.141504] Checking for: /uEnv.txt …
[3.143512 0.029125] Checking for: /boot.scr …
[3.172757 0.029245] Checking for: /boot/boot.scr …
[3.195035 0.022278] Checking for: /boot/uEnv.txt …
[3.215035 0.020000] gpio: pin 55 (gpio 55) value is 1
[3.235852 0.020817] 2816 bytes read in 15 ms (182.6 KiB/s)
[3.240127 0.004275] Loaded environment from /boot/uEnv.txt
[3.245119 0.004992] debug: [dtb=am335x-boneblack-emmc-overlay.dtb] …
[3.249752 0.004633] Using: dtb=am335x-boneblack-emmc-overlay.dtb …
[3.254001 0.004249] Checking if uname_r is set in /boot/uEnv.txt…
[3.258623 0.004622] gpio: pin 56 (gpio 56) value is 1
[3.262125 0.003502] Running uname_boot …
[3.287531 0.025406] loading /boot/vmlinuz-4.9.45-ti-r57 …
[3.911928 0.624397] 9504896 bytes read in 617 ms (14.7 MiB/s)
[3.917265 0.005337] uboot_overlays: dtb=am335x-boneblack-emmc-overlay.dtb in /boot/uEnv.txt, unable to use [uboot_base_dtb=am335x-boneblack-uboot.dtb] …
[3.966272 0.049007] loading /boot/dtbs/4.9.45-ti-r57/am335x-boneblack-emmc-overlay.dtb …
[4.013803 0.047531] 55816 bytes read in 38 ms (1.4 MiB/s)
[4.018331 0.004528] uboot_overlays: [fdt_buffer=0x60000] …
[4.058288 0.039957] uboot_overlays: loading /lib/firmware/AM335X-20-00A0.dtbo …
[4.099074 0.040786] 378 bytes read in 32 ms (10.7 KiB/s)
[4.156640 0.057566] uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo …
[4.209132 0.052492] 1105 bytes read in 43 ms (24.4 KiB/s)
[4.270908 0.061776] uboot_overlays: loading /lib/firmware/BB-HDMI-TDA998x-00A0.dtbo …
[4.324552 0.053644] 4169 bytes read in 45 ms (89.8 KiB/s)
[4.491673 0.167121] uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo …
[4.615421 0.123748] 695 bytes read in 115 ms (5.9 KiB/s)
[4.801927 0.186506] uboot_overlays: loading /lib/firmware/univ-bbb-EVA-00A0.dtbo …
[4.984684 0.182757] 54817 bytes read in 174 ms (307.6 KiB/s)
[6.488341 1.503657] loading /boot/initrd.img-4.9.45-ti-r57 …
[6.918229 0.429888] 6448261 bytes read in 422 ms (14.6 MiB/s)
[6.925370 0.007141] debug: [console=ttyO0,115200n8 bone_capemgr.disable_partno=univ-hdmi bone_capemgr.enable_partno=BB-BONE-4D5N-01,BB-BONE-4D5R-01,univ-nhdmi,DVK531-PWM-01 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet] …
[6.950597 0.025227] debug: [bootz 0x82000000 0x88080000:626485 88000000] …
[6.956842 0.006245] ## Flattened Device Tree blob at 88000000
[6.960503 0.003661] Booting using the fdt blob at 0x88000000
[6.964954 0.004451] Loading Ramdisk to 8f9d9000, end 8ffff485 … OK
[7.024359 0.059405] reserving fdt memory region: addr=88000000 size=7b000
[7.029956 0.005597] Loading Device Tree to 8f95b000, end 8f9d8fff … OK
[7.047201 0.017245]
[7.047277 0.000076] Starting kernel …
[7.049816 0.002539]
[9.949162 2.899346] [ 0.001658] clocksource_probe: no matching clocksources found
[9.954885 0.005723] [ 2.442117] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[10.201684 0.246799] [ 2.700982] omap_voltage_late_init: Voltage driver support not added
[10.209166 0.007482] [ 2.708521] PM: Cannot get wkup_m3_ipc handle
[10.469809 0.260643] [ 2.969065] bone_capemgr bone_capemgr: slot #0: auto loading handled by U-Boot
[10.477061 0.007252] [ 2.976486] bone_capemgr bone_capemgr: slot #1: auto loading handled by U-Boot
[10.484398 0.007337] [ 2.983879] bone_capemgr bone_capemgr: slot #2: auto loading handled by U-Boot
[10.491772 0.007374] [ 2.991223] bone_capemgr bone_capemgr: slot #3: auto loading handled by U-Boot
[10.499154 0.007382] [ 2.998564] bone_capemgr bone_capemgr: slot #4: override
[10.504544 0.005390] [ 3.003935] bone_capemgr bone_capemgr: slot #4: auto loading handled by U-Boot
[10.511785 0.007241] [ 3.011238] bone_capemgr bone_capemgr: slot #5: override
[10.517147 0.005362] [ 3.016603] bone_capemgr bone_capemgr: slot #5: auto loading handled by U-Boot
[10.524411 0.007264] [ 3.023892] bone_capemgr bone_capemgr: slot #6: override
[10.529918 0.005507] [ 3.029253] bone_capemgr bone_capemgr: slot #6: auto loading handled by U-Boot
[10.537050 0.007132] [ 3.036542] bone_capemgr bone_capemgr: slot #7: override
[10.542405 0.005355] [ 3.041902] bone_capemgr bone_capemgr: slot #7: auto loading handled by U-Boot
[20.784498 10.242093] rootfs: recovering journal
[20.913652 0.129154] rootfs: clean, 122379/233392 files, 750369/932864 blocks
[22.504171 1.590519] [FAILED] Failed to start Load Kernel Modules.
[22.518349 0.014178] See ‘systemctl status systemd-modules-load.service’ for details.
[22.534315 0.015966] [DEPEND] Dependency failed for roboticscape.
[22.554359 0.020044] [ OK ] Started Remount Root and Kernel File Systems.
[22.583561 0.029202] [ OK ] Started Create list of required sta…vice nodes for the current kernel.
[22.630166 0.046605] Starting Create Static Device Nodes in /dev…
[22.656024 0.025858] Starting Load/Save Random Seed…
[22.710778 0.054754] Starting udev Coldplug all Devices…
[22.786661 0.075883] Starting Apply Kernel Variables…
[22.842785 0.056124] Mounting FUSE Control File System…
[22.907534 0.064749] Mounting Configuration File System…
[23.005411 0.097877] [ OK ] Started Create Static Device Nodes in /dev.
[23.041424 0.036013] [ OK ] Started Load/Save Random Seed.
[23.079665 0.038241] [ OK ] Started Apply Kernel Variables.
[23.104171 0.024506] [ OK ] Mounted FUSE Control File System.
[23.112128 0.007957] [ OK ] Mounted Configuration File System.
[23.144289 0.032161] [ OK ] Started Journal Service.
[23.199670 0.055381] Starting Flush Journal to Persistent Storage…
[23.236007 0.036337] Starting udev Kernel Device Manager…
[23.245196 0.009189] [ OK ] Reached target Local File Systems (Pre).
[23.265331 0.020135] [ OK ] Reached target Local File Systems.
[23.313919 0.048588] Starting Raise network interfaces…
[23.618429 0.304510] [ OK ] Started Flush Journal to Persistent Storage.
[23.709398 0.090969] Starting Create Volatile Files and Directories…
[24.011557 0.302159] [ OK ] Started Create Volatile Files and Directories.
[24.101090 0.089533] [ OK ] Started Entropy daemon using the HAVEGE algorithm.
[24.170443 0.069353] Starting Update UTMP about System Boot/Shutdown…
[24.238437 0.067994] Starting Network Time Synchronization…
[24.272809 0.034372] [ OK ] Started udev Kernel Device Manager.
[24.463699 0.190890] [ OK ] Started Update UTMP about System Boot/Shutdown.
[24.844193 0.380494] [ OK ] Started Network Time Synchronization.
[24.910337 0.066144] [ OK ] Reached target System Time Synchronized.
[25.467351 0.557014] [ OK ] Started Raise network interfaces.
[25.482060 0.014709] [ OK ] Reached target Network.
[25.498555 0.016495] [ OK ] Reached target Network is Online.
[25.634984 0.136429] [ OK ] Started udev Coldplug all Devices.
[25.650295 0.015311] [ OK ] Reached target System Initialization.
[25.669335 0.019040] [ OK ] Listening on node-red.socket.
[25.681279 0.011944] [ OK ] Listening on D-Bus System Message Bus Socket.
[25.698783 0.017504] [ OK ] Started Daily Cleanup of Temporary Directories.
[25.717817 0.019034] [ OK ] Listening on GPS (Global Positioning System) Daemon Sockets.
[25.734590 0.016773] [ OK ] Reached target Sockets.
[25.746551 0.011961] [ OK ] Reached target Basic System.
[25.792972 0.046421] Starting LSB: BSD lpr/lpd line printer spooling system…
[25.843003 0.050031] [ OK ] Started D-Bus System Message Bus.
[26.188605 0.345602] Starting Cape Manager Service…
[26.239609 0.051004] Starting Generic Board Startup…
[26.298234 0.058625] Starting LSB: Load kernel modules needed to enable cpufreq scaling…
[26.362361 0.064127] Starting Login Service…
[26.440369 0.078008] Starting OpenBSD Secure Shell server…
[26.534491 0.094122] Starting LSB: Start busybox udhcpd at boot time…
[26.637866 0.103375] [ OK ] Started Regular background program processing daemon.
[26.734862 0.096996] Starting LSB: Advanced IEEE 802.11 management daemon…
[26.812362 0.077500] Starting LSB: Start daemon at boot time…
[26.906122 0.093760] Starting Permit User Sessions…
[26.926953 0.020831] [ OK ] Started Daily apt download activities.
[26.939583 0.012630] [ OK ] Started Daily apt upgrade and clean activities.
[26.954613 0.015030] [ OK ] Reached target Timers.
[27.084621 0.130008] [ OK ] Started LSB: BSD lpr/lpd line printer spooling system.
[27.142116 0.057495] [ OK ] Started Cape Manager Service.
[27.180626 0.038510] [ OK ] Started LSB: Advanced IEEE 802.11 management daemon.
[27.206356 0.025730] [ OK ] Started Permit User Sessions.
[27.676388 0.470032] [ OK ] Started OpenBSD Secure Shell server.
[27.865273 0.188885] [ OK ] Started LSB: Start busybox udhcpd at boot time.
[27.962889 0.097616] [ OK ] Started LSB: Start daemon at boot time.
[28.062890 0.100001] [ OK ] Started Login Service.
[28.748912 0.686022] [ OK ] Started LSB: Load kernel modules needed to enable cpufreq scaling.
[28.806398 0.057486] Starting LSB: set CPUFreq kernel parameters…
[29.319688 0.513290] [ OK ] Started LSB: set CPUFreq kernel parameters.
[29.399299 0.079611] Starting zui…
[31.351964 1.952665] Stopping LSB: Start busybox udhcpd at boot time…
[31.738096 0.386132] [ OK ] Stopped LSB: Start busybox udhcpd at boot time.
[32.173962 0.435866] Starting dnsmasq - A lightweight DHCP and caching DNS server…
[32.453974 0.280012] [ OK ] Found device /dev/ttyS0.
[32.525823 0.071849] [ OK ] Started Serial Getty on ttyS0.
[32.547412 0.021589] [ OK ] Reached target Login Prompts.
[33.207884 0.660472] [ OK ] Started dnsmasq - A lightweight DHCP and caching DNS server.
[33.280625 0.072741] [ OK ] Reached target Host and Network Name Lookups.
[38.589647 5.309022]
[38.590942 0.001295] Debian GNU/Linux 9 ttrhvt.0941 ttyS0
[38.594234 0.003292]
[38.594338 0.000104] BeagleBoard.org Debian Image 2017-08-31
[38.597982 0.003644]
[38.598106 0.000124] Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
[38.604085 0.005979]
[38.604122 0.000037] default username:password is [debian:temppwd]
[38.608353 0.004231]
[38.613232 0.004879] ttrhvt login:

and bellow i mentioned services

root@ttrhvt:/lib/systemd/system# ls
apache2.service initrd-root-fs.target sudo.service
apache2@.service initrd-switch-root.service suspend.target
apache-htcacheclean.service initrd-switch-root.target swap.target
apache-htcacheclean@.service initrd.target sys-fs-fuse-connections.mount
apt-daily.service initrd-udevadm-cleanup-db.service sysinit.target
apt-daily.timer kexec.target sysinit.target.wants
apt-daily-upgrade.service killprocs.service sys-kernel-config.mount
apt-daily-upgrade.timer kmod.service sys-kernel-debug.mount
atd.service kmod-static-nodes.service syslog.socket
autovt@.service local-fs-pre.target systemd-ask-password-console.path
avahi-daemon.service local-fs.target systemd-ask-password-console.service
avahi-daemon.socket local-fs.target.wants systemd-ask-password-wall.path
basic.target machine.slice systemd-ask-password-wall.service
bb-wl18xx-bluetooth.service module-init-tools.service systemd-backlight@.service
bb-wl18xx-wlan0.service motd.service systemd-binfmt.service
beagle-tester.service mountall-bootclean.service systemd-exit.service
bluetooth.service mountall.service systemd-fsckd.service
bluetooth.target mountdevsubfs.service systemd-fsckd.socket
bonescript-autorun.service mountkernfs.service systemd-fsck-root.service
bonescript.service mountnfs-bootclean.service systemd-fsck@.service
bonescript.socket mountnfs.service systemd-halt.service
bootlogd.service multi-user.target systemd-hibernate-resume@.service
bootlogs.service multi-user.target.wants systemd-hibernate.service
bootmisc.service networking.service systemd-hostnamed.service
busnames.target network-online.target systemd-hwdb-update.service
busnames.target.wants network-pre.target systemd-hybrid-sleep.service
buzz_off.service network.target systemd-initctl.service
capemgr.service node-red.service systemd-initctl.socket
checkfs.service node-red.socket systemd-journald-audit.socket
checkroot-bootclean.service nss-lookup.target systemd-journald-dev-log.socket
checkroot.service nss-user-lookup.target systemd-journald.service
cloud9.service paths.target systemd-journald.socket
cloud9.socket polkit.service systemd-journal-flush.service
cmemk-module.service poweroff.target systemd-kexec.service
colord.service printer.target systemd-localed.service
connman.service procps.service systemd-logind.service
connman-wait-online.service proc-sys-fs-binfmt_misc.automount systemd-machine-id-commit.service
console-getty.service proc-sys-fs-binfmt_misc.mount systemd-modules-load.service
container-getty@.service quotaon.service systemd-networkd.service
cron.service rc_battery_monitor.service systemd-networkd.socket
cryptdisks-early.service rc-local.service systemd-networkd-wait-online.service
cryptdisks.service rc.local.service systemd-poweroff.service
cryptsetup-pre.target rc-local.service.d systemd-quotacheck.service
cryptsetup.target rc.service systemd-random-seed.service
ctrl-alt-del.target rcS.service systemd-reboot.service
cups-browsed.service reboot.service systemd-remount-fs.service
cups.path reboot.target systemd-resolved.service
cups.service remote-fs-pre.target systemd-resolved.service.d
cups.socket remote-fs.target systemd-rfkill.service
dbus-org.freedesktop.hostname1.service rescue.service systemd-rfkill.socket
dbus-org.freedesktop.locale1.service rescue.target systemd-suspend.service
dbus-org.freedesktop.login1.service rescue.target.wants systemd-sysctl.service
dbus-org.freedesktop.network1.service rmnologin.service systemd-timedated.service
dbus-org.freedesktop.resolve1.service roboticscape.service systemd-timesyncd.service
dbus-org.freedesktop.timedate1.service rpcbind.target systemd-timesyncd.service.d
dbus.service rsync.service systemd-tmpfiles-clean.service
dbus.socket rsyslog.service systemd-tmpfiles-clean.timer
debug-shell.service runlevel0.target systemd-tmpfiles-setup-dev.service
default.target runlevel1.target systemd-tmpfiles-setup.service
dev-hugepages.mount runlevel1.target.wants systemd-udevd-control.socket
dev-mqueue.mount runlevel2.target systemd-udevd-kernel.socket
dnsmasq.service runlevel2.target.wants systemd-udevd.service
emergency.service runlevel3.target systemd-udev-settle.service
emergency.target runlevel3.target.wants systemd-udev-trigger.service
exit.target runlevel4.target systemd-update-utmp-runlevel.service
final.target runlevel4.target.wants systemd-update-utmp.service
fuse.service runlevel5.target systemd-user-sessions.service
generic-board-startup.service runlevel5.target.wants system.slice
getty@.service runlevel6.target system-update.target
getty-static.service saned.service ti-mct-daemon.service
getty.target saned@.service timers.target
getty.target.wants saned.socket timers.target.wants
gpsdctl@.service screen-cleanup.service time-sync.target
gpsd.service sendsigs.service udev.service
gpsd.socket serial-getty@.service udisks2.service
graphical.target shutdown.target umountfs.service
graphical.target.wants sigpwr.target umountnfs.service
halt.service single.service umountroot.service
halt.target sleep.target umount.target
haveged.service slices.target urandom.service
hibernate.target smartcard.target usb_modeswitch@.service
hostname.service sockets.target usbmuxd.service
hwclock.service sockets.target.wants user@.service
hybrid-sleep.target sound.target user.slice
ifup@.service ssh.service wacom-inputattach@.service
initrd-cleanup.service ssh@.service wpa_supplicant.service
initrd-fs.target ssh.socket wpa_supplicant@.service
initrd-parse-etc.service stop-bootlogd.service x11-common.service
initrd-root-device.target stop-bootlogd-single.service zui.service
root@ttrhvt:/lib/systemd/system#

Regards
Raghavendra.b