Skip to content

Latest commit

 

History

History
56 lines (43 loc) · 1.4 KB

1043_control_mounting_and_unmounting_of_filesystems.md

File metadata and controls

56 lines (43 loc) · 1.4 KB
Raw

104.3. Control mounting and unmounting of filesystems

weight: 3

http://j.mp/jadilpic1

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

Basic commands

cat /et/fstab
mount /dev/sda1 /media
umount /media

Some switches

mount -t ext4 /dev/sda1 /media
mount -o remount,ro /dev/sda1

Get info on UUID and Label and Format

blkid /dev/sda2

Bootup

/etc/fstab

  • 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)

note:

  • 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.

swap

swapon
swapoff
swapon -s