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linuxfilesystemsext2

how can I check the mount count on a ext2 filesystem

With tune2fs one can set the maximum mount count -c (before e2fsck kicks in on boot) and also the actual (current) mount count -C. I'm looking for a way to read these two values.

Solution

  • the man page has -l:

    sehe@desktop:~$ sudo tune2fs -l /dev/mapper/debian-uburoot  | grep count
Inode count:              1310720
Block count:              5241856
Reserved block count:     262092
Mount count:              12
Maximum mount count:      -1

    So you could make it

    function mount_count() 
{ 
    tune2fs -l "$1" | 
      grep '^Mount count:' | 
      grep -oP '\d+'
}

    Now you can

    mounted=$(mount_count /dev/sda1)
echo "Volume sda1 has already been mounted $mounted times since last check"