How do I debug this FS error on a flash device?

Posted by abc on Server Fault See other posts from Server Fault or by abc
Published on 2011-11-16T22:41:22Z Indexed on 2011/11/17 1:54 UTC
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linux

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filesystems

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file

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fat32

I have console access to an embedded linux device. This device has flash memory part of which is partitioned as a FAT filesystem.

Its running linux-2.6.31.

However I am seeing these errors on the console these days and the FAT file system becomes read only.

111109:154925 FAT: Filesystem error (dev loop0)
111109:154925 fat_get_cluster: invalid cluster chain (i_pos 0)
111109:154925 FAT: Filesystem error (dev loop0)
111109:154925 fat_get_cluster: invalid cluster chain (i_pos 0)

I cannot understand why this happened? What is the root cause? And what is the fix? I would appreciate answers that can point me how to investigate the possible root cause of this issue on the device.

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