====== Create Mount Unmount And Use Vfat Ext4 And Xfs File Systems ======

**General Information**

Creating different file systems. 

----

===== Creation and Mounting =====

Create filesystem examples (vfat, ext4, xfs)
<code bash>
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
</code>

\\
Mount (does not survive reboot)
<code bash>
mount /dev/sdb1 /mnt/dir1
mount /dev/sdb2 /mnt/dir2
mount /dev/sdb3 /mnt/dir3
</code>

\\
Persistent Mounts (/etc/fstab)
<code bash>
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
</code>

\\
Unmount
<code bash>
umount /mnt/dir1
umount /mnt/dir2
umount /mnt/dir3
</code>

----

===== Maintenance =====

Details about ext2/3/4 filesystems
<code bash>
dumpe2fs /dev/sdb2
</code>

\\
Label ext2/3/4 filesystem
<code bash>
tune2fs -L mylabel /dev/sdb2
</code>

\\
Check/repair vfat and ext4 filesystem
<code bash>
fsck.vfat /dev/sdb1
fsck /dev/sdb2
</code>
  * Filesystems must be unmounted for fsck to run

\\
Display XFS filesystem information
<code bash>
xfs_info /dev/sdb3
</code>

\\
Label XFS filesystem
<code bash>
xfs_admin -L mylabel /dev/sdb3
</code>
  * Must be unmounted

\\
Check/repair XFS filesystem
<code bash>
xfs_repair /dev/sdb3
</code>

----