Why do I get the fsck error: "currently, only 1 or 2 FATs are supported, not 34?" And what can I do to successfully run fsck?
I'm fsck-ing my Transcend 16GB Class-6 SD card. It got corrupted recently (not sure how). I already recovered the data. Now I'm trying to fix the card for re-use. I want to see if I can fix it without reformatting--using fsck.
Here's the output for running fdisk and fsck on Ubuntu 9.04:
billpaetzke@billpaetzke-desktop:~$ sudo fdisk -l
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x1aac1aac
Device Boot Start End Blocks Id System
/dev/sda1 * 1 9352 75119908+ 83 Linux
/dev/sda2 9353 9729 3028252+ 5 Extended
/dev/sda5 9353 9729 3028221 82 Linux swap / Solaris
Disk /dev/sdb: 16.0 GB, 16071000064 bytes
218 heads, 56 sectors/track, 2571 cylinders
Units = cylinders of 12208 * 512 = 6250496 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 1 2572 15690240 b W95 FAT32
billpaetzke@billpaetzke-desktop:~$ sudo fsck /dev/sdb1
fsck 1.41.3 (12-Oct-2008)
dosfsck 2.11, 12 Mar 2005, FAT32, LFN
Currently, only 1 or 2 FATs are supported, not 34.
When you do a dosfsck you need to tell it what partition number - fsck's launching of dosfsck isn't quite cutting it in this case (maybe). Try running dosfsck
directly:
sudo dosfsck -r -v /dev/sdb1
the -r option is for interactively fixing the file system
the -v option is for verbosity
If you still see the error, I suspect the filesystem is corrupted. The File system is indicating you have 34 file allocation tables, which is not possible - you'll need to reformat.
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