Create Mount Unmount And Use Vfat Ext4 And Xfs File Systems

General Information

Creating different file systems.

Create filesystem examples (vfat, ext4, xfs)

mkfs.vfat /dev/sdb1
mkfs.ext4 /dev/sdb2
mkfs.xfs /dev/sdb3
 
or
 
mkfs -t vfat /dev/sdb1
mkfs -t ext4 /dev/sdb1
mkfs -t xfs /dev/sdb1

Mount (does not survive reboot)

mount /dev/sdb1 /mnt/dir1
mount /dev/sdb2 /mnt/dir2
mount /dev/sdb3 /mnt/dir3

Persistent Mounts (/etc/fstab)

vim /etc/fstab
 
/dev/sdb1 /mnt/dir1 vfat defaults 1 2
/dev/sdb2 /mnt/dir2 ext4 defaults 1 2
/dev/sdb3 /mnt/dir3 xfs defaults 1 2

Unmount

umount /mnt/dir1
umount /mnt/dir2
umount /mnt/dir3

Details about ext2/3/4 filesystems

dumpe2fs /dev/sdb2

Label ext2/3/4 filesystem

tune2fs -L mylabel /dev/sdb2

Check/repair vfat and ext4 filesystem

fsck.vfat /dev/sdb1
fsck /dev/sdb2

• Filesystems must be unmounted for fsck to run

Display XFS filesystem information

xfs_info /dev/sdb3

Label XFS filesystem

xfs_admin -L mylabel /dev/sdb3

• Must be unmounted

Check/repair XFS filesystem

xfs_repair /dev/sdb3