Hi,
For this no exact timings are needed...I only want in beforehand,
how long approximatly this adventure will take...and whether it is
possible (Swap of an external hd is available...)...so:
Is it possible and if yes: how long will it take to compile a linux
3.2 kernel (the Robert Nelson kernel) with the original defconfig on a
beagle bone white/classic natively???
Thank you very much in advance for any help!
Best regards
mcc
4-7 hours... Mostly depending on how fast your drive is..
Regards,
Do you usually attach storage directly to the BeagleBone (if so, what
exactly), or use nfs?
I tried a few high-speed USB keys, but had better results with nfs (and
with nfs I can keep everything together on my server, protected by RAID
and regular backups).
...now if there was just a GigE option for the 'Bone. 
Externally powered sata drives with usb adapter.
Regards,
I've had real good luck with these: "filemate 3fme2500gw" mostly as
they are the only usb-sata adapter I've found that has a secondary
5volt power connector, so you aren't sourcing all the power from the
usb hub on the beagle...
Regards,
Robert Nelson <robertcnelson@gmail.com> [13-07-19 14:20]:
>>> Hi,
>>>
>>> For this no exact timings are needed...I only want in beforehand,
>>> how long approximatly this adventure will take...and whether it is
>>> possible (Swap of an external hd is available...)...so:
>>>
>>> Is it possible and if yes: how long will it take to compile a linux
>>> 3.2 kernel (the Robert Nelson kernel) with the original defconfig on a
>>> beagle bone white/classic natively???
>>
>> 4-7 hours... Mostly depending on how fast your drive is..
>
> Do you usually attach storage directly to the BeagleBone (if so, what
> exactly), or use nfs?Externally powered sata drives with usb adapter.
Regards,
--
Robert Nelson
http://www.rcn-ee.com/--
For more options, visit http://beagleboard.org/discuss
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Just an addition cause I struggled about it:
1.) External USB drive attached to the beaglebone: No reachtion at
all.
2.) External USB drive attached to an USB hub (not powered): The
electronic of the hd wakes up, the kernel recognizes the drive
correctly but when doing something with it, dmesg reports
"Drives not ready" (read: motor does not spin up).
3.) Same as 2.) : Drive fully functional.
May depend on the hd model, though...
Best regads,
mcc
Hello Robert,
Do you have a rough estimate of read / write speeds ?
With a NFS rootfs I am getting around 11.1MB/s writes, and 11.9MB/s reads. using rsize=32768,wsize=32768
I would assume the USB<->SATA adapters would be faster but . . . you never know.
Imho nfs is the best because it is free - you have Ethernet and a PC with plenty of free space. Usb sata drives are capable to achieve 30MB/s but do you need so much to just compile a kernel? I believe when compiling kernel the most of time is spent on compilation itself rather then to write to a disk. Use nfs for free