I recently had another (cheap) flash drive fail and after restoring a backup I noticed a "UBIFS error" message in the netconsole output. For all I know it's always been there and after doing a little research I think it's because it's trying to load a UBIFS image from the internal flash and there's none there. I believe it's harmless and/or normal, but I'd like to get some confirmation from the experts here.
-JT
U-Boot 2014.07-tld-2 (Sep 20 2014 - 01:10:10)
Seagate FreeAgent DockStar
gcc (Debian 4.6.3-14) 4.6.3
GNU ld (GNU Binutils for Debian) 2.22
Hit any key to stop autoboot: 0
(Re)start USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 4 USB Device(s) found
scanning usb for storage devices... 2 Storage Device(s) found
** File not found /rescueme **
** Unrecognized filesystem type **
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=3"
UBI: MTD device size: 219 MiB
UBI: number of good PEBs: 1750
UBI: number of bad PEBs: 2
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 0
UBI: available PEBs: 1729
UBI: total number of reserved PEBs: 21
UBI: number of PEBs reserved for bad PEB handling: 17
UBI: max/mean erase counter: 1/1
UBIFS error (pid 0): ubifs_get_sb: cannot open "rootfs", error -22
UBIFS error (pid 0): ubifs_mount: Error reading superblock on volume 'rootfs' er
rno=-22!
ubifsmount - mount UBIFS volume
Usage:
ubifsmount <volume-name>
- mount 'volume-name' volume
1 bytes read in 461 ms (0 Bytes/s)
Found bootable drive on usb 0:1
2707144 bytes read in 318 ms (8.1 MiB/s)
6310882 bytes read in 472 ms (12.8 MiB/s)
## Booting kernel from Legacy Image at 00800000 ...
Image Name: Linux-3.16.0-kirkwood-tld-1
Created: 2014-08-30 18:31:56 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2707080 Bytes = 2.6 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 01100000 ...
Image Name: initramfs-3.16.0-kirkwood-tld-1
Created: 2014-08-30 18:31:37 UTC
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 6310818 Bytes = 6 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Starting kernel ...
Thanks!
-JT