[Bug 529489] Re: USB device changes automatically as read only

[Osmo Laitinen]

And fsck.vfat -v -n /dev/sdb1:

dosfsck 3.0.3 (18 May 2009)
dosfsck 3.0.3, 18 May 2009, FAT32, LFN
Checking we can access the last sector of the filesystem
There are differences between boot sector and its backup.
Differences: (offset:original/backup)
  0:eb/42, 1:3e/12, 2:90/00, 3:4d/49, 4:53/02, 5:57/07, 6:49/01, 7:4e/06
  , 8:34/00, 9:2e/06, 10:31/01, 12:08/00, 13:02/00, 14:20/00, 16:02/00
  , 21:f8/88, 24:30/20, 26:ed/20, 28:30/00, 32:50/40, 33:46/04, 34:0f/03
  , 36:37/05, 37:0f/01, 44:02/00, 50:06/04, 64:80/00, 66:29/01, 82:46/00
  , 83:41/01, 84:54/14, 85:33/03, 86:32/00, 87:20/00, 88:20/00, 89:20/00
  Not automatically fixing this.
Boot sector contents:
System ID "MSWIN4.1"
Media byte 0xf8 (hard disk)
      2048 bytes per logical sector
      4096 bytes per cluster
        32 reserved sectors
First FAT starts at byte 65536 (sector 32)
         2 FATs, 32 bit entries
   7976960 bytes per FAT (= 3895 sectors)
Root directory start at cluster 2 (arbitrary size)
Data area starts at byte 16019456 (sector 7822)
    496609 data clusters (2034110464 bytes)
48 sectors/track, 237 heads
        48 hidden sectors
   1001040 sectors total
FATs differ but appear to be intact. Using first FAT.
/Wild Beasts
  Has a large number of bad entries. (105/128)
  Not dropping it in auto-mode.
/Wild Beasts/<A2>Y%-A<E2>\212'.<DD>[\017
  Bad file name.
  ---- (lots of simlar stuff)
  Renamed to 065\0000000.\000\033f
/Wild Beasts
  "." is missing. Can't fix this yet.
/Wild Beasts
  ".." is missing. Can't fix this yet.
/Wild Beasts/<D6>\034\017{*q\010<F2>.<E3><E9>\224
  Start cluster beyond limit (746417343 > 496610). Truncating file.
--- (lots of similar stuff)
Checking for unused clusters.
Reclaimed 3473 unused clusters (14225408 bytes).
Checking free cluster summary.
Free cluster summary wrong (250662 vs. really 254135)
  Auto-correcting.
Leaving file system unchanged.
/dev/sdb1: 397 files, 242474/496609 clusters

-- 
USB device changes automatically as read only
https://bugs.launchpad.net/bugs/529489
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