HI, After power short u-boot fails to mount UBIFS and board stuck. Below is a trace of u-boot
Marvell>> boot
UBI: mtd1 is detached from ubi0
Creating 1 MTD partitions on "nand0":
0x000000500000-0x000020000000 : "mtd=2"
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: attached mtd1 to ubi0
UBI: MTD device name: "mtd=2"
UBI: MTD device size: 507 MiB
UBI: number of good PEBs: 4055
UBI: number of bad PEBs: 1
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 4055
UBI: number of PEBs reserved for bad PEB handling: 40
UBI: max/mean erase counter: 1/0
UBIFS: recovery needed
Error reading superblock on volume 'ubi:rootfs'!
UBIFS not mounted, use ubifs mount to mount volume first!
UBIFS not mounted, use ubifs mount to mount volume first!
Wrong Image Format for bootm command
ERROR: can't get kernel image! Marvell>>
To recover from this situation I boot from USB stick and simply mounts the same UBIFS partition:
root@debian:~# mount -t ubifs ubi0:rootfs /mnt [ 306.205029] UBIFS: recovery needed [ 309.341987] UBIFS: recovery completed [ 309.345705] UBIFS: mounted UBI device 0, volume 0, name "rootfs" [ 309.351738] UBIFS: file system size: 515192832 bytes (503118 KiB, 491 MiB, 3993 LEBs) [ 309.359789] UBIFS: journal size: 25804800 bytes (25200 KiB, 24 MiB, 200 LEBs) [ 309.367495] UBIFS: media format: w4/r0 (latest is w4/r0) [ 309.373352] UBIFS: default compressor: lzo [ 309.377479] UBIFS: reserved for root: 4952683 bytes (4836 KiB)
As you can see mount manage to recover partition. Is where any way to make u-boot to recover UBIFS partition as well? What else can I do to make my system stable and survive power shorts?
Thanks.