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kernel: EXT4-fs error на флешке с EXT2


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флешка для Entware отформатирована в EXT2

через два дня пользования в журнале появились записи

 

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Ноя 12 17:26:26 ndm kernel: EXT4-fs error (device sda1): mb_free_blocks:1471: group 0, inode 16327: block 722:freeing already freed block (bit 722); block bitmap corrupt.
Ноя 12 17:26:26 ndm kernel: EXT4-fs error (device sda1): ext4_mb_generate_buddy:759: group 0, block bitmap and bg descriptor inconsistent: 32021 vs 32035 free clusters
~ # mount
/dev/sda1 on /tmp/mnt/f18c1b68-c0df-452b-ba18-7e516d270d5f type ext2 (rw,noatime)
/dev/sda1 on /opt type ext2 (rw,noatime)

Как понимать: плевать на текст "EXT4-fs" и считать, что флешка посыпалась или ?

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сделал проверку - все норм говорит....

~ # badblocks -v /dev/sda1
Checking blocks 0 to 1957503
Checking for bad blocks (read-only test): done                                                 
Pass completed, 0 bad blocks found. (0/0/0 errors)

 

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Ноя 12 22:11:33  ndm  kernel: EXT4-fs (sda1): error count since last fsck: 13
Ноя 12 22:11:33  ndm  kernel: EXT4-fs (sda1): initial error at time 1573490308: ext4_mb_generate_buddy:759
Ноя 12 22:11:33  ndm  kernel: EXT4-fs (sda1): last error at time 1573568786: ext4_mb_generate_buddy:759

при том, что

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~ #  fsck
-sh: fsck: not found
~ #

 

как так то.... после какого последнего запуска fsck счетчик ошибок 13 ?

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