Boot from usb partition with name rootfs

I have a wheezy installation on an external hdd which I want to use on a pink pogoplug. I labeled the rootpartition rootfs, and now would like to boot from this partition even if the other usb hdd are attached. I don't think they contain bootable structures / files.

I followed

http://forum.doozan.com/read.php?3,12

but I get the following:

U-Boot 2011.12 (Feb 20 2012 - 21:21:59)
Pogoplug E02
arm-none-linux-gnueabi-gcc (Sourcery G++ Lite 2009q3-67) 4.4.1
GNU ld (Sourcery G++ Lite 2009q3-67) 2.19.51.20090709
Hit any key to stop autoboot:  0
(Re)start USB...
USB:   Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 5 USB Device(s) found
       scanning bus for storage devices... EHCI timed out on TD - token=0x800d8d80
EHCI timed out on TD - token=0x80008d80
3 Storage Device(s) found
Loading file "/rescueme" from usb device 0:1 (usbda1)
** File not found /rescueme
reading /rescueme.txt

** Unable to read "/rescueme.txt" from usb 0:1 **

and there it stops (or do I have to wait a few minutes?).

In contrast, when I switch off the power of the other external hdd (usb connected, power not), I get

-Boot 2011.12 (Feb 20 2012 - 21:21:59)
Pogoplug E02
arm-none-linux-gnueabi-gcc (Sourcery G++ Lite 2009q3-67) 4.4.1
GNU ld (Sourcery G++ Lite 2009q3-67) 2.19.51.20090709
Hit any key to stop autoboot:  0
(Re)start USB...
USB:   Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 3 USB Device(s) found
       scanning bus for storage devices... 1 Storage Device(s) found
Loading file "/rescueme" from usb device 0:1 (usbda1)
** File not found /rescueme
reading /rescueme.txt

** Unable to read "/rescueme.txt" from usb 0:1 **
Creating 1 MTD partitions on "nand0":
0x000002500000-0x000008000000 : "mtd=3"
UBI: attaching mtd1 to ubi0
UBI: physical eraseblock size:   131072 bytes (128 KiB)
UBI: logical eraseblock size:    129024 bytes
UBI: smallest flash I/O unit:    2048
UBI: sub-page size:              512
UBI: VID header offset:          512 (aligned 512)
UBI: data offset:                2048
UBI error: ubi_read_volume_table: the layout volume was not found
UBI error: ubi_init: cannot attach mtd1
UBI error: ubi_init: UBI error: cannot initialize UBI, error -22
UBI init error 22
(Re)start USB...
USB:   Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 3 USB Device(s) found
       scanning bus for storage devices... 1 Storage Device(s) found
Loading file "/boot/uImage" from usb device 0:1 (usbda1)
1608496 bytes read
Loading file "/boot/uImage" from usb device 0:1 (usbda1)
1608496 bytes read
Loading file "/boot/uInitrd" from usb device 0:1 (usbda1)
7087801 bytes read
## Booting kernel from Legacy Image at 00800000 ...
   Image Name:   kernel 3.2.0-4-kirkwood
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1608432 Bytes = 1.5 MiB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 01100000 ...
   Image Name:   ramdisk 3.2.0-4-kirkwood
   Image Type:   ARM Linux RAMDisk Image (gzip compressed)
   Data Size:    7087737 Bytes = 6.8 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

and it works.

my fw_env looks as follow:

root@debian:~# fw_printenv
ethact=egiga0
bootdelay=3
baudrate=115200
mainlineLinux=yes
console=ttyS0,115200
led_init=green blinking
led_exit=green off
led_error=orange blinking
mtdparts=mtdparts=orion_nand:1M(u-boot),4M(uImage),32M(rootfs),-(data)
mtdids=nand0=orion_nand
partition=nand0,2
stdin=serial
stdout=serial
stderr=serial
rescue_set_bootargs=setenv bootargs console=$console ubi.mtd=2 root=ubi0:rootfs ro rootfstype=ubifs $mtdparts $rescue_custom_params
rescue_bootcmd=if test $rescue_installed -eq 1; then run rescue_set_bootargs; nand read.e 0x800000 0x100000 0x400000; bootm 0x800000; else run pogo_bootcmd; fi
pogo_bootcmd=if fsload uboot-original-mtd0.kwb; then go 0x800200; fi
force_rescue=0
force_rescue_bootcmd=if test $force_rescue -eq 1 || ext2load usb 0:1 0x1700000 /rescueme 1 || fatload usb 0:1 0x1700000 /rescueme.txt 1; then run rescue_bootcmd; fi
ubifs_mtd=3
ubifs_set_bootargs=setenv bootargs console=$console ubi.mtd=$ubifs_mtd root=ubi0:rootfs rootfstype=ubifs $mtdparts $ubifs_custom_params
ubifs_bootcmd=run ubifs_set_bootargs; if ubi part data && ubifsmount rootfs && ubifsload 0x800000 /boot/uImage && ubifsload 0x1100000 /boot/uInitrd; then bootm 0x800000 0x1100000; fi
usb_scan=usb_scan_done=0;for scan in $usb_scan_list; do run usb_scan_$scan; if test $usb_scan_done -eq 0 && ext2load usb $usb 0x800000 /boot/uImage 1; then usb_scan_done=1; echo "Found bootable drive on usb $usb"; setenv usb_device $usb; setenv usb_root /dev/$dev; fi; done
usb_scan_list=1 2 3 4
usb_scan_1=usb=0:1 dev=sda1
usb_scan_2=usb=1:1 dev=sdb1
usb_scan_3=usb=2:1 dev=sdc1
usb_scan_4=usb=3:1 dev=sdd1
usb_device=0:1
usb_root=/dev/sda1
usb_rootfstype=ext2
usb_rootdelay=10
usb_set_bootargs=setenv bootargs console=$console root=$usb_root rootdelay=$usb_rootdelay rootfstype=$usb_rootfstype $mtdparts $usb_custom_params
usb_bootcmd=run usb_init; run usb_set_bootargs; run usb_boot
usb_boot=mw 0x800000 0 1; ext2load usb $usb_device 0x800000 /boot/uImage; if ext2load usb $usb_device 0x1100000 /boot/uInitrd; then bootm 0x800000 0x1100000; else bootm 0x800000; fi
bootcmd=usb start; run force_rescue_bootcmd; run ubifs_bootcmd; run usb_bootcmd; usb stop; run rescue_bootcmd; run pogo_bootcmd; reset
ethaddr=00:25:31:00:49:4B
rescue_installed=1
arcNumber=3542
serverip=192.168.0.40
if_netconsole=ping $serverip
start_netconsole=setenv ncip $serverip; setenv bootdelay 10; setenv stdin nc; setenv stdout nc; setenv stderr nc; version;
preboot=run if_netconsole start_netconsole
ipaddr=192.168.0.102
usb_init=usb start; if ext2load usb 0:1 0x800000 /boot/uImage; then setenv usb_device 0:1; setenv usb_root /dev/sda1; elif ext2load usb 1:1 0x800000 /boot/uImage; then setenv usb_device 1:1; setenv usb_root /dev/sdb1; elif ext2load usb 2:1 0x800000 /boot/uImage; then setenv usb_device 2:1; setenv usb_root /dev/sdc1; elif ext2load usb 3:1 0x800000 /boot/uImage; then setenv usb_device 3:1;setenv usb_root /dev/sdd1;fi;
root@debian:~#

Is there any way to tell uBoot to boot from rootfs? I already changed the fstab to use LABEL=rootfs for / but I assume that comes in later?

Rainer

The problem is not the label, but that HDD causing the EHCI timeout.

Yes. However, using rootfs label will get around this timed out problem , sometime but not in all cases. See here for how to set it:
http://forum.doozan.com/read.php?3,8044,8152#msg-8152

-bodhi
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Edited 1 time(s). Last edit at 12/18/2013 04:36PM by bodhi.

Thant makes sense.

I have set the disk label, but not yet set

fw_setenv usb_init "usb start; setenv usb_root LABEL=rootfs"

But one question before: can I then still boot from the internal insallation, when nothing is conected?

Rainer

You can. The updated uboot can load the original uboot which in turn loads the original firmware.

This defines your boot order:

bootcmd=usb start; run force_rescue_bootcmd; run ubifs_bootcmd; run usb_bootcmd; usb stop; run rescue_bootcmd; run pogo_bootcmd; reset

At the very end, this is executed which tries to load a backup image of the original uboot from a jffs2 partition.

pogo_bootcmd=if fsload uboot-original-mtd0.kwb; then go 0x800200; fi

On my Dockstar, I happened to have already formatted the extra space in mtd3 as ubifs, so I placed my backup uboot-original-mtd0.kwb file there. I had to define a new boot type pogo_ubifs and then modify bootcmd, inserting pogo_ubifs.