dumpe2fs
Print the super block and blocks group information for ext2/ext3/ext4 filesystems.
Unmount the partition before running this command using umount {{device}}.
More information: https://manned.org/dumpe2fs.
-
Display ext2, ext3 and ext4 filesystem information:
dumpe2fs {{/dev/sdXN}} -
Display the blocks which are reserved as bad in the filesystem:
dumpe2fs -b {{/dev/sdXN}} -
Force display filesystem information even with unrecognizable feature flags:
dumpe2fs -f {{/dev/sdXN}} -
Only display the superblock information and not any of the block group descriptor detail information:
dumpe2fs -h {{/dev/sdXN}} -
Print the detailed group information block numbers in hexadecimal format:
dumpe2fs -x {{/dev/sdXN}}
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