104.3. Control mounting and unmounting of filesystems
Configure the mounting of a filesystem. Tasks include manually mounting and unmounting filesystems, configuring filesystem mounting on bootup, and configuring user-mountable removable filesystems.
- Mount and unmount filesystems manually
- Configure filesystem mounting on bootup
- Configure user-mountable, removable filesystems
Mounting and Unmounting
- Describe the linux filesystem concept. A huge tree.
- There are other kinds of mountings: tmpfs, NFS, ..
- It is better to mount on empty directories
cat /etc/fstab mount /dev/sda1 /media umount /media
mount -t ext4 /dev/sda1 /media mount -o remount,ro /dev/sda1
Get info on UUID and Label and Format
- file system: Label, UUID, device
- mount point: swap or none for swap
- type: can be auto
- options: defaults, rw / ro, noauto, user, exec / noexec, noatime
- dump: do dump command backup this? mostly 0
- pass: Non-zero values of pass specify the order of checking filesystems at boot time (seen in Integrity of file systems)
- User-mounted filesystems default to noexec unless exec is specified after user.
- noatime will disable recording of access times. Not using access times may improve performance.
swapon swapoff swapon -s