2 usb sticks with rootfs on it?

I'm using Bodhi rootfs for pogoplug. 1st USB with my standard OS and 2nd rootfs USB just for compiling apps. Is it possible to have both USB's plugged in and switch boot order by restarting? What I did I plugged in both usb's and changed the label on the first one to rootfsORIG. Rebooted the system but the first usb still booted up instead of the second one. The reason I'm doing this so I don't have to physically switch USB's when I need to compile something fast.

the boot order AFAIK unless you tell uboot to specifically look for a device with a label of rootfs will boot from the first usb "stick" it finds

#set rootfs file system type
/tmp/fw_setenv usb_rootfstype ext3


try bodhis suggestion from yesterday to another forum member

http://forum.doozan.com/read.php?3,12381,18003#msg-18003

@Almaz,

If both USB drives have rootfs, then u-boot env will need more than rootfs label change. uImage detection also needed to change.

-bodhi
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Problem solved by switching

from
fw_setenv usb_scan_list 1 2 3 4

to
fw_setenv usb_scan_list 4 3 2 1

Almaz,

> Problem solved by switching
>
> from
> fw_setenv usb_scan_list 1 2 3 4
>
> to
> fw_setenv usb_scan_list 4 3 2 1

Not a sure thing. It might work for current USB drives and the way you plug them in. As soon as you change the order or brand of USB drives, you might find it get out of wack again :)

I will release the next version of u-boot images that has loading uEnv.txt capability, which will help the boot drive kernel/rootfs selection a lot easier to implement.

-bodhi
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thanks Bodhi

Almaz,

I gave it a second thought! Actually you don't have to wait until new u-boot release to do this. Do you have netconsole or serial console? if you do, try:

1. In Debian,

cd  /boot
touch boot.txt

2. Reboot, interrupt serial/net console, and execute

> setenv test_boot_drive 'if test -e usb 0:1 /boot/boot.txt; then echo Found boot.txt; fi'
> run test_boot_drive

3. or if your boot drive is the other one

> setenv test_boot_drive 'if test -e usb 1:1 /boot/boot.txt; then echo Found boot.txt; fi'
> run test_boot_drive

Tell me if it found your boot drive.

-bodhi
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Edited 1 time(s). Last edit at 10/14/2014 02:07AM by bodhi.

I don't have setenv option. I can only use fw_setenv if it makes any difference.

U-Boot 2011.12 (Feb 20 2012 - 21:21:59)
Pogoplug E02U-Boot

Almaz Wrote:
-------------------------------------------------------
> I don't have setenv option. I can only use
> fw_setenv if it makes any difference.
>
> U-Boot 2011.12 (Feb 20 2012 - 21:21:59)
> Pogoplug E02U-Boot

test -e won't work in this u-boot version (too old).

-bodhi
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