"Guessing" superblock parameters
s.steffann at computel.nl
Tue May 2 10:58:34 UTC 2006
> > Is the filesystem (offset of inode tables, ...) the same everytime I
> > format the same partition? If not, why?
> Yes, this is generally true for a given blocksize. Even the
> journal is created after the inode tables are allocated.
> However, as part of the mke2fs the inode tables are zeroed,
> so this would in fact be bad in your case.
You can use the -n option:
-n causes mke2fs to not actually create a filesystem, but
what it would do if it were to create a filesystem. This
be used to determine the location of the backup superblocks
a particular filesystem, so long as the mke2fs parameters
were passed when the filesystem was originally created are
again. (With the -n option added, of course!)
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