pogoplug e02 won't boot after power outage

[bakaCirno]

I install arch follow this guide http://archlinuxarm.org/platforms/armv5/pogoplug-v2-pinkgray
After power outage,LED isn't light,can't get ip and SSH connect
I get a serial connect,and be foolish to change a lot of envs,here is printenv
$this->bbcode_second_pass_code('', 'arcNumber=2097
baudrate=115200
bootargs=root=ubi0:rootfs ubi.mtd=2,512 rootfstype=ubifs console=ttyS0,115200 elevator=cfq mac_adr=0x00,0x25,0x31,0x00,0xd4,0x6f mem=128 poweroutage=yes
bootcmd=usb start; setenv letter 9;for type in usb; do for disk in 0 1 2 3; do if part ;then setexpr letter + 1;run load;fi;done;done;
bootdelay=3
bootm=echo Booting from ...; run setargs; bootm 0x810000;
bootz=echo Booting from ...; run setargs; bootz 0x810000 - 0x800000;
console=ttyS0
ethact=egiga0
ethaddr=00:25:31:00:93:11
fdt_addr=0x800000
fdt_file=/boot/dtbs/kirkwood-pogo_e02.dtb
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
importbootenv=echo Importing environment (uEnv.txt)...; env import -t 0x810000
led_error=orange blinking
led_exit=green off
led_init=green blinking
letter=9
load=echo Attempting to boot from :1...;if run loadbootenv; then run importbootenv;fi;echo Checking if uenvcmd is set ...;if test -n ; then echo Running uenvcmd ...;run uenvcmd;fi;echo Running default loadzimage ...;if run loadzimage; then run loadfdt;run bootz;fi;echo Running default loaduimage ...;if run loaduimage; then run bootm;fi;
loadaddr=0x810000
loadbootenv=load :1 0x810000 /boot/uEnv.txt
loadfdt=load :1 0x800000 /boot/dtbs/kirkwood-pogo_e02.dtb
loaduimage=load :1 0x810000 /boot/uImage
loadzimage=load :1 0x810000 /boot/zImage
mainlineLinux=yes
mtddevname=rootfs
mtddevnum=2
mtdids=nand0=orion_nand
mtdparts=mtdparts=orion_nand:1M(u-boot),-(rootfs)
nand_erasesize=20000
nand_oobsize=40
nand_writesize=800
partition=nand0,2
pogo_bootcmd=if ubifsload uboot-original-mtd0.kwb; then go 0x800200; fi
rescue_bootcmd=if test $rescue_installed -eq 1; then run rescue_set_bootargs; nand read.e 0x800000 0x100000 0x400000; bootm 0x800000; else run pogo_bootcmd; fi
rescue_installed=0
rescue_set_bootargs=setenv bootargs console=$console ubi.mtd=2 root=ubi0:rootfs ro rootfstype=ubifs $mtdparts $rescue_custom_params
setargs=setenv bootargs console=ttyS0,115200 root=/dev/sd1 rw rootwait mtdparts=orion_nand:1M(u-boot),-(rootfs)
stderr=serial
stdin=serial
stdout=serial
ubifs_bootcmd=run ubifs_set_bootargs; if ubi part data && ubifsmount rootfs && ubifsload 0x800000 /boot/uImage && ubifsload 0x1100000 /boot/uInitrd; then bootm 0x800000 0x1100000; fi
ubifs_mtd=3
ubifs_set_bootargs=setenv bootargs console=$console ubi.mtd=$ubifs_mtd root=ubi0:rootfs rootfstype=ubifs $mtdparts $ubifs_custom_params
uimage=/boot/uImage
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
usb_bootcmd=run usb_init; run usb_set_bootargs; run usb_boot
usb_device=0:1
usb_init=run usb_scan
usb_root=/dev/sda1
usb_rootdelay=10
usb_rootfstype=ext2
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_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_scan_list=1 2 3 4
usb_set_bootargs=setenv bootargs console=$console root=$usb_root rootdelay=$usb_rootdelay rootfstype=$usb_rootfstype $mtdparts $usb_custom_params
zimage=/boot/zImage')

when boot
$this->bbcode_second_pass_code('', 'U-Boot 2014.04.R3-1 (May 26 2014 - 19:45:55) Arch Linux ARM
Pogo E02

SoC: Kirkwood 88F6281_A0
DRAM: 256 MiB
WARNING: Caches not enabled
NAND: 128 MiB
In: serial
Out: serial
Err: serial
Net: egiga0
Hit any key to stop autoboot: 0
(Re)start USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 3 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
Unknown command 'part' - try 'help'
Unknown command 'part' - try 'help'
Unknown command 'part' - try 'help'
Unknown command 'part' - try 'help'
')

Is it brick?
Sorry for my poor english.

[Socaltom]

Have you tried running fsck on the boot partition? You would need another linux device to do this ( I usually set up a USB thumb drive as a back up for this). You can also use a boot CD from a linux distro.
Tom

[bakaCirno]

I had formatted the u disk and follow the guide step3-step6 reinstall the system,but still not work.
I have tried type "help" in uboot ,there is not a "part" command.

[bodhi]

@bakaCirno,
It's because your u-boot envs are all messed up! not your rootfs. That "part" command supposed to be in these commands:
$this->bbcode_second_pass_code('', '... usb part ...
.. ide part ...
')
@Tom,
So it's best to post the entire u-boot envs on your Pogo E02 here. And then bakaCirno can fix his/her u-boot envs using that.

-bodhi