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Does mke2fs -b 1042 -S <device> format the disk?
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inn3rpece
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PostPosted: Mon Mar 02, 2009 9:05 pm    Post subject: Does mke2fs -b 1042 -S <device> format the disk? Reply with quote
Hi all,

I've tried using e2fsck -b <block size> <device> to no avail. It can appears as the the primary and backup superblocks have been corrupted. I ran the command mke2fs -b 1042 -S <device> and it's still running ..

Does the command "mke2fs -b 1042 -S <device>" actually format the disk thereby clearing the data?
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timeBandit
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PostPosted: Mon Mar 02, 2009 11:14 pm    Post subject: Re: Does mke2fs -b 1042 -S <device> format the disk? Reply with quote
inn3rpece wrote:
Does the command "mke2fs -b 1042 -S <device>" actually format the disk thereby clearing the data?

Doesn't look that way to me:
man mke2fs wrote:
-S
    Write superblock and group descriptors only. This is useful if all of the superblock and backup superblocks are corrupted, and a last-ditch recovery method is desired. It causes mke2fs to reinitialize the superblock and group descriptors, while not touching the inode table and the block and inode bitmaps. The e2fsck program should be run immediately after this option is used, and there is no guarantee that any data will be salvageable. It is critical to specify the correct filesystem blocksize when using this option, or there is no chance of recovery.
How big is the disk? Even this limited work might take a while if we're talking really big....
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