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Check whether fsck would run



Holger had the idea to add to molly-guard a check that would require
the sysadmin to manually ack a reboot if fsck would be expected to
run. I like it.

Instead of parsing df -t output, invoking tune2fs -l and doing
a whole bunch of grep magic, I wonder if there's a smarter way to
find out if fsck would do something if it were to run now.

There is

  fsck -A -t ext2,ext3,ext4,… ...

but I could not find out how to ask it the question I want answered,
which is: "hey, fsck, if you were to run right now on -All
filesystems of -type as listed, would you want to do a routine
check?"

Do you know?

Cheers,

-- 
 .''`.   martin f. krafft <madduck@d.o> @martinkrafft
: :'  :  proud Debian developer
`. `'`   http://people.debian.org/~madduck
  `-  Debian - when you have better things to do than fixing systems
 
"a woman begins by resisting a man's advances and ends by blocking
 his retreat."
                                                        -- oscar wilde

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