fsck는 변경 사항을 기록하지 않습니다.

SD 카드를 수리하려고 합니다.지방,그러나 fsck변경 사항은 기록되지 않습니다. 심지어 매직 -w옵션도 도움이 되지 않습니다.

$ sudo fsck.fat -aw /dev/sda1 
fsck.fat 3.0.26 (2014-03-07)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
 Automatically removing dirty bit.
Free cluster summary wrong (240886 vs. really 241296)
  Auto-correcting.
Performing changes.
/dev/sda1: 3471 files, 240319/481615 clusters

↑수정된 것 같습니다. 하지만 다시 시작할 때마다FSCK, 동일한 문제를 보고하고 동일한 텍스트로 수정하는 척합니다.

자세한 변형은 다음과 같습니다.

$ sudo fsck.fat -awv /dev/sda1 
fsck.fat 3.0.26 (2014-03-07)
fsck.fat 3.0.26 (2014-03-07)
Checking we can access the last sector of the filesystem
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
 Automatically removing dirty bit.
Boot sector contents:
System ID "mkfs.fat"
Media byte 0xf8 (hard disk)
       512 bytes per logical sector
      4096 bytes per cluster
        32 reserved sectors
First FAT starts at byte 16384 (sector 32)
         2 FATs, 32 bit entries
   1926656 bytes per FAT (= 3763 sectors)
Root directory start at cluster 2 (arbitrary size)
Data area starts at byte 3869696 (sector 7558)
    481615 data clusters (1972695040 bytes)
62 sectors/track, 61 heads
      2048 hidden sectors
   3860480 sectors total
Reclaiming unconnected clusters.
Checking free cluster summary.
Free cluster summary wrong (240886 vs. really 241296)
  Auto-correcting.
Performing changes.
/dev/sda1: 3471 files, 240319/481615 clusters