u-boot gives Error 22 for ubi partion , but mounts ok in linux


This Content is from Stack Overflow. Question asked by varta

I have a buildroot system, which mounts ubi ok in linux, but in u-boot I get error 22

When starting in linux this is in dmesg:

ubi0: scanning is finished
ubi0: attached mtd2 (name "rootfs", size 32 MiB)
ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
ubi0: good PEBs: 256, bad PEBs: 0, corrupted PEBs: 0
ubi0: user volume: 1, internal volumes: 1, max. volumes count: 128
ubi0: max/mean erase counter: 2/0, WL threshold: 4096, image sequence number: 894512245
ubi0: available PEBs: 0, total reserved PEBs: 256, PEBs reserved for bad PEB handling: 40
ubi0: background thread "ubi_bgt0d" started, PID 1103
UBIFS (ubi0:0): UBIFS: mounted UBI device 0, volume 0, name "rootfs", R/O mode
UBIFS (ubi0:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
UBIFS (ubi0:0): FS size: 25649152 bytes (24 MiB, 202 LEBs), journal size 4444160 bytes (4 MiB, 35 LEBs)
UBIFS (ubi0:0): reserved for root: 0 bytes (0 KiB)
UBIFS (ubi0:0): media format: w4/r0 (latest is w4/r0), UUID 29B5D4CF-8B0B-465A-8D03-F3A464E6250E, small LPT model
UBIFS (ubi0:0): full atime support is enabled.
VFS: Mounted root (ubifs filesystem) readonly on device 0:13.

in u-boot mtd returns

device nand0 <nand0>, # parts = 4
 #: name                size            offset          mask_flags
 0: u-boot              0x00200000      0x00000000      0
 1: kernel              0x01e00000      0x00200000      0
 2: rootfs              0x02000000      0x02000000      0
 3: user                0x0c000000      0x04000000      0

active partition: nand0,0 - (u-boot) 0x00200000 @ 0x00000000

mtdids  : nand0=nand0
mtdparts: mtdparts=nand0:0x200000@0x0(u-boot),0x1e00000@0x200000(kernel),0x2000000@0x2000000(rootfs),-(user)

but when it try to attach

=> ubi part rootfs
ubi0: attaching mtd1
UBI init error 22

It’s on an embedded system which uses older versions U-Boot 2016.11 and Linux/arm 4.4.289 Kernel
I suppose some parameter is wrong somewhere, can somebody give me some advise where to look?


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