root@arago:/# mount /dev/mtdblock4 /mnt/aaa/
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x0, size 0x200
end_request: I/O error, dev mtdblock4, sector 0
FAT: unable to read boot sector
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x400, size 0x200
mtdblock: read on "filesystem" at 0x600, size 0x200
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x400, size 0x200
mtdblock: read on "filesystem" at 0x600, size 0x200
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x400, size 0x200
mtdblock: read on "filesystem" at 0x600, size 0x200
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x400, size 0x200
mtdblock: read on "filesystem" at 0x600, size 0x200
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x0, size 0x200
mtdblock: read on "filesystem" at 0x200, size 0x200
mtdblock: read on "filesystem" at 0x400, size 0x200
mtdblock: read on "filesystem" at 0x600, size 0x200
mtdblock: read on "filesystem" at 0x800, size 0x200
end_request: I/O error, dev mtdblock4, sector 0
Buffer I/O error on device mtdblock4, logical block 0
mtdblock: read on "filesystem" at 0x0, size 0x200
end_request: I/O error, dev mtdblock4, sector 0
Buffer I/O error on device mtdblock4, logical block 0
mtdblock: read on "filesystem" at 0x1000, size 0x200
end_request: I/O error, dev mtdblock4, sector 8
Buffer I/O error on device mtdblock4, logical block 1
mtdblock: read on "filesystem" at 0x1000, size 0x200
mtdblock: read on "filesystem" at 0x1200, size 0x200
mtdblock: read on "filesystem" at 0x1400, size 0x200
mtdblock: read on "filesystem" at 0x1600, size 0x200
mtdblock: read on "filesystem" at 0x1800, size 0x200
end_request: I/O error, dev mtdblock4, sector 8
Buffer I/O error on device mtdblock4, logical block 1
mtdblock: read on "filesystem" at 0x2000, size 0x200
end_request: I/O error, dev mtdblock4, sector 16
Buffer I/O error on device mtdblock4, logical block 2
mtdblock: read on "filesystem" at 0x2000, size 0x200
mtdblock: read on "filesystem" at 0x2200, size 0x200
mtdblock: read on "filesystem" at 0x2400, size 0x200
mtdblock: read on "filesystem" at 0x2600, size 0x200
mtdblock: read on "filesystem" at 0x2800, size 0x200
end_request: I/O error, dev mtdblock4, sector 16
Buffer I/O error on device mtdblock4, logical block 2
mtdblock: read on "filesystem" at 0x3000, size 0x200
end_request: I/O error, dev mtdblock4, sector 24
Buffer I/O error on device mtdblock4, logical block 3
mtdblock: read on "filesystem" at 0x3000, size 0x200
mtdblock: read on "filesystem" at 0x3200, size 0x200
mtdblock: read on "filesystem" at 0x3400, size 0x200
mtdblock: read on "filesystem" at 0x3600, size 0x200
mtdblock: read on "filesystem" at 0x3800, size 0x200
end_request: I/O error, dev mtdblock4, sector 24
Buffer I/O error on device mtdblock4, logical block 3
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x0, size 0x200
end_request: I/O error, dev mtdblock4, sector 0
FAT: unable to read boot sector
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock: read on "filesystem" at 0x0, size 0x200
mtdblock_release
nand_sync: called
ok
mtdblock_open
ok
mtdblock_release
nand_sync: called
ok
mount: mounting /dev/mtdblock4 on /mnt/aaa/ failed: Invalid argument
root@arago:/#