topic Re: How do I know which fs type is mounted? in Operating System - Linux

How do I know which fs type is mounted?

K.C. Chan — Thu, 21 Feb 2002 16:45:08 GMT

Besides the info on /etc/fstab, how do I know which fs type is the current filesystem? Is there a command like fstype you can run against it? Thanks.

Re: How do I know which fs type is mounted?

Josh Owings — Thu, 21 Feb 2002 17:24:55 GMT

I don't know if this is what you are looking for, but have you tried doing a more on /etc/mtab?

example:
------------------------
/dev/hda5 / ext3 rw 0 0
none /proc proc rw 0 0
/dev/hda1 /boot ext2 rw 0 0
------------------------

Re: How do I know which fs type is mounted?

Eric Ladner — Thu, 21 Feb 2002 17:31:38 GMT

Exactly.. /etc/mtab get's updated every time a file system is mounted or unmounted so it should always reflect the current state of all the active file systems.

As an example:

awk '{ print "Filesystem $2 is type $3" }' /etc/mtab

Re: How do I know which fs type is mounted?

D. Jackson_1 — Thu, 21 Feb 2002 18:17:44 GMT

You can also check:

cat /proc/mounts
or
df -Tk

HTH

Re: How do I know which fs type is mounted?

K.C. Chan — Thu, 21 Feb 2002 20:03:00 GMT

All,
How come df -Tk and cat /etc/mntab reports / as ext3 whereas cat /proc/mounts report / as ext2?

This is on RH 7.1 upgraded to kernel version 2.4.17 with ext3 as modules. I've ran tune2fs -j successfully on / file system. Anyone care to explain why cat /etc/mtab differ with /proc/mounts? Thanks.