Как определить тип файловой системы в Linux?

# df -T | awk '{print $1,$2,$NF}' | grep "^/dev"
/dev/sda1 ext2 /
/dev/sdb1 ext3 /home
/dev/sdc1 ext3 /u01

# mount | grep "^/dev"
/dev/sda1 on / type ext2 (rw)
/dev/sdb1 on /home type ext3 (rw)
/dev/sdc1 on /u01 type ext3 (rw)

# file -sL /dev/sda1
/dev/sda1: Linux rev 1.0 ext2 filesystem data (mounted or unclean)
(large files)
 
# file -sL /dev/sdb1
/dev/sda1: Linux rev 1.0 ext3 filesystem data (needs journal recovery)
(large files)
 
# file -sL /dev/sdc1
/dev/sda1: Linux rev 1.0 ext3 filesystem data (needs journal recovery)
(large files)

# cat /etc/fstab
LABEL=/r       /        ext2    defaults    1 1
LABEL=/home    /home    ext3    defaults    0 0
LABEL=/u01     /u01     ext3    defaults    0 0

# fsck -N /dev/sda1
fsck 1.39 (29-May-2006)
[/sbin/fsck.ext2 (1) -- /] fsck.ext2 /dev/sda1
 
# fsck -N /dev/sdb1
fsck 1.39 (29-May-2006)
[/sbin/fsck.ext3 (1) -- /home] fsck.ext3 /dev/sdb1
 
# fsck -N /dev/sdc1
fsck 1.39 (29-May-2006)
[/sbin/fsck.ext3 (1) -- /u01] fsck.ext3 /dev/sdc1