parallels@ubuntu:~$ sudo picocom /dev/ttyUSB0 -b 115200 -l picocom v1.7 port is : /dev/ttyUSB0 flowcontrol : none baudrate is : 115200 parity is : none databits are : 8 escape is : C-a local echo is : no noinit is : no noreset is : no nolock is : yes send_cmd is : sz -vv receive_cmd is : rz -vv imap is : omap is : emap is : crcrlf,delbs, Terminal ready ot SPL 2015.1-g15e7184 (J - 09:01:57) 2015.07-rc2-0e7184 (Jun 0901:57 -050nkins-github_Bootloader-Builder-163 Watchdog enabled I2y DRAM: 512 MiBMMCOMAP SD/MMC: 0/MMC: 1 Using default e Validating fiMAC psw 0 gpvalue is 1 Card did not respondelect! Card did not respond to vol0 gpio: pin 55 (gpio 5n 54 (gpio s 0 mmc1(part 0) i device gpio: pin 5h for: /uEnChe: /boot.scrCer Cng for: /boot... go: pin 55 (gpio 55) va5 bytes read in 28 .5 KiB/sd environment from /boot/uEnv.tx if uname_r is boot/uEnv.txt... o: pin 56 (gpie is 1 Runninboot ... loaboot/vmlinuz-3-r67 ... 7184 bytes read (16.2 MiB/s)loa/boot/dtbs/3.17/am335x-bone ... 8161 bytes read in 94 ms (905.3 KiB/loa /boot/init43-ti-r67 ...3634s (15.4 MiB/sdebug: [console=ttyO0,1151a87-5c24-40070ab2cfd4d e=ext4 rootcoherent_po ... debug: [bootz 0x820000000:3774e9 0x... Kernel image @ 0x82000000 [ 0x000000 - 0x6cd030 ] ## Flattened Device Tree blob at 88000000 ob at 0x8800 Loading Ramdi88000, end 8O Lo Tre 8fc87478 [ 0.000420] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0' [ 0.000428] This ensures that you still see kernel messages. Please [ 0.000436] update your kernel commandline. [ 2.815620] musb-hdrc musb-hdrc.0.auto: Failed to request rx1. [ 2.821584] musb-hdrc musb-hdrc.0.auto: musb_init_controller failed with status -517 [ 2.895506] musb-hdrc musb-hdrc.1.auto: Failed to request rx1. [ 2.901456] musb-hdrc musb-hdrc.1.auto: musb_init_controller failed with status -517 [ 3.052411] cpu cpu0: cpu0 clock notifier not ready, retry [ 3.061824] Error: Driver 'tfp410' is already registered, aborting... [ 3.070128] slave hdmi: could not get i2c [ 3.472926] musb-hdrc musb-hdrc.1.auto: otg: usb_otg_kick_fsm: invalid host/gadget device [ 3.739126] usb 1-1: device v413c p2003 is not supported [ 7.718918] mmcblk0: timed out sending r/w cmd command, card status 0xe00 [ 7.725799] end_request: I/O error, dev mmcblk0, sector 421752 [ 7.731667] Buffer I/O error on device mmcblk0p1, logical block 52463 [ 7.738232] EXT4-fs (mmcblk0p1): error loading journal mount: mounting /dev/disk/by-uuid/31351a87-5c24-4001-a9b2-5570ab2cfd4d on /root failed: Invalid argument mount: mounting /dev on /root/dev failed: No such file or directory mount: mounting /sys on /root/sys failed: No such file or directory mount: mounting /proc on /root/proc failed: No such file or directory Target filesystem doesn't have requested /sbin/init. No init found. Try passing init= bootarg. BusyBox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs) help Built-in commands: ------------------ . : [ alias break cd chdir command continue echo eval exec exit export false getopts hash help let local printf pwd read readonly return set shift test times trap true type ulimit umask unalias unset wait [ [[ ash awk basename blockdev cat chmod chroot chvt clear cmp cp cut deallocvt df dnsdomainname du dumpkmap echo egrep env expr false fbset fdflush fgrep find grep gunzip gzip hostname ifconfig ip kill ln loadfont loadkmap ls mkdir mkfifo mknod mkswap mktemp modinfo more mount mv openvt pidof printf ps pwd readlink reset rm rmdir sed seq setkeycodes sh sleep sort stat static-sh stty switch_root sync tail tee test touch tr true tty umount uname uniq wc wget which yes zcat (initramfs) ls dev run etc sbin lib sys tmp root init bin scripts conf proc var (initramfs) pwd / (initramfs) ls /root (initramfs) ls /dev/disk/by-uuid 31351a87-5c24-4001-a9b2-5570ab2cfd4d (initramfs) mount /dev/disk/by-uuid/31351a87-5c24-4001-a9b2-5570ab2cfd4d /root [ 249.406929] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.439949] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.472807] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.531187] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.589584] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.648051] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.655167] end_request: I/O error, dev mmcblk0, sector 2050 [ 249.660882] EXT4-fs (mmcblk0p1): unable to read superblock [ 249.667745] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.726297] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.784802] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.843252] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.901664] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.960077] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 249.967186] end_request: I/O error, dev mmcblk0, sector 2050 [ 249.972911] EXT4-fs (mmcblk0p1): unable to read superblock [ 250.005117] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.037979] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.096794] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.129690] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.188119] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.246548] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.253660] end_request: I/O error, dev mmcblk0, sector 2050 [ 250.259377] EXT4-fs (mmcblk0p1): unable to read superblock [ 250.266014] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.324543] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.357346] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.390194] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.448686] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.507087] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.514193] end_request: I/O error, dev mmcblk0, sector 2048 [ 250.519911] FAT-fs (mmcblk0p1): unable to read boot sector [ 250.526431] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.559374] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.617865] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.676351] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.709187] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.716361] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.723468] end_request: I/O error, dev mmcblk0, sector 2048 [ 250.729181] FAT-fs (mmcblk0p1): unable to read boot sector [ 250.736579] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.769539] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.828103] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.860963] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.893832] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.952220] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 250.959327] end_request: I/O error, dev mmcblk0, sector 2048 [ 251.017583] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.076086] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.134653] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.193064] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.251450] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.309842] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.316950] end_request: I/O error, dev mmcblk0, sector 2048 [ 251.322667] F2FS-fs (mmcblk0p1): Unable to read 1th superblock [ 251.380094] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.412914] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.471302] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.529697] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.588116] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.646510] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.653617] end_request: I/O error, dev mmcblk0, sector 2056 [ 251.659323] F2FS-fs (mmcblk0p1): Unable to read 2th superblock [ 251.666173] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.724705] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.783163] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.841623] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.900053] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.958477] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 [ 251.965581] end_request: I/O error, dev mmcblk0, sector 2176 [ 251.971279] Buffer I/O error on device mmcblk0p1, logical block 16 mount: mounting /dev/disk/by-uuid/31351a87-5c24-4001-a9b2-5570ab2cfd4d on /root failed: Invalid argument (initramfs)