block group size of a filesystem


 
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# 1  
Old 07-12-2009
block group size of a filesystem

How can I determine the block group size of my filesystem, in case I would like to determine where my backup superblocks are? Or how can I determine the location of my backup superblock?

If usually, for the block group size of 1k, the alternate superblock will be at block 8193.

Thanks,
# 2  
Old 07-14-2009
Linux? then try:
Code:
dumpe2fs /dev/hda3 | grep -i superblock

Note the hda3 is an example
# 3  
Old 07-25-2009
Thanks. It works
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