Package: dosfstools Version: 2.11-2.1 Severity: critical File: /sbin/fsck.vfat Justification: causes serious data loss
/sbin/fsck.vfat truncates files of 4294966784 bytes length. The file system on /dev/hda8 was checked immediately before reboot using the GUI tool in Windows 2000. As the output /var/log/fsck/checkfs shows /sbin/fsck.vfat decided during boot that the filesystem was inconsistent and automatically truncated the file. Note that it hasn't actually released the clusters yet. The clusters seem to be freed during when fsck is run at the next boot. Also shown below is the result of manually copying an equivalant file, and manually running fsck.vfat is sufficent to reproduce the problem. A quick test shows that Sarge does not truncate the file during boot. Thanks for your work in Debian Andrew V. ======================================================================== $ cat /var/log/fsck/checkfs Log of fsck -C -V -R -A -a Wed Apr 4 17:23:06 2007 fsck 1.40-WIP (14-Nov-2006) Checking all file systems. [/sbin/fsck.ext3 (1) -- /mnt/p4-backup-root] fsck.ext3 -a -C0 /dev/hda6 /dev/hda6: Superblock last mount time is in the future. FIXED. /dev/hda6: clean, 19738/128520 files, 313092/514048 blocks [/sbin/fsck.vfat (1) -- /mnt/p4-shared] fsck.vfat -a /dev/hda8 dosfsck 2.11, 12 Mar 2005, FAT32, LFN /Sarge Hard Disk.vhd File size is 4294966784 bytes, cluster chain length is 0 bytes. Truncating file to 0 bytes. Performing changes. /dev/hda8: 63 files, 950195/2076388 clusters fsck died with exit status 1 Wed Apr 4 17:23:07 2007 ---------------- $ cp /mnt/p4-games/tmp/MS-Virtual-PC/sarge1/Sarge\ Hard\ Disk.vhd /mnt/p4-shared/sarge_test $ ll /mnt/p4-shared/ total 4194368 [...] -rwxr-xr-x 1 andrew andrew 0 2007-03-29 18:32 Sarge Hard Disk.vhd -rwxr-xr-x 1 andrew andrew 4294966784 2007-04-04 17:34 sarge_test $ sudo umount /dev/hda8 $ sudo fsck.vfat -a /dev/hda8 dosfsck 2.11, 12 Mar 2005, FAT32, LFN /sarge_test File size is 4294966784 bytes, cluster chain length is 0 bytes. Truncating file to 0 bytes. /Sarge Hard Disk.vhd File size is 0 bytes, cluster chain length is > 0 bytes. Truncating file to 0 bytes. Free cluster summary wrong (864049 vs. really 1126193) Auto-correcting. Performing changes. /dev/hda8: 64 files, 950195/2076388 clusters $ sudo fsck.vfat -a /dev/hda8 dosfsck 2.11, 12 Mar 2005, FAT32, LFN /sarge_test File size is 0 bytes, cluster chain length is > 0 bytes. Truncating file to 0 bytes. Free cluster summary wrong (1126193 vs. really 1388337) Auto-correcting. Performing changes. /dev/hda8: 64 files, 688051/2076388 clusters -- System Information: Debian Release: 4.0 APT prefers testing APT policy: (500, 'testing') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18-4-686 Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8) Versions of packages dosfstools depends on: ii libc6 2.3.6.ds1-13 GNU C Library: Shared libraries dosfstools recommends no packages. -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
