Redhat Linux - Finding the filesystem type of a partition in linux

Finding the filesystem type of a partition in linux

To find the type of filesystem a partition or a media is of we can use the commands "df" or "mount".

Using df 

$ df -T
Filesystem    Type   1K-blocks      Used Available Use% Mounted on
/dev/sda1     ext4    53067292  47601336   2770228  95% /
tmpfs        tmpfs      127140         0    127140   0% /lib/init/rw
udev         tmpfs      121484       220    121264   1% /dev
tmpfs        tmpfs      127140         4    127136   1% /dev/shm

The column with the heading "Type" gives the filesystem type. So the partition /dev/sda1 is of type ext4

To find the filesystem type of a specific partition pass the partition as the argument.  

$ df -T /dev/sda1
Filesystem    Type   1K-blocks      Used Available Use% Mounted on
/dev/sda1     ext4    53067292  47601332   2770232  95% /

Using mount 

$ mount
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
none on /proc/fs/vmblock/mountPoint type vmblock (rw)

As listed the partition /dev/sda1 is of type ext4.
We can find the specific partition type by combining mount with grep.  

$ mount | grep /dev/sda1
/dev/sda1 on / type ext4 (rw,errors=remount-ro)