Mount and fsck

Some commands useful for mounting (mount), unmounting (umount) and file checking (fsck).

1. Permanent mounts in

sudo nano /etc/fstab
#after editing check with (else reboot may fail):
mount -fav # = fake/all in fstab/verbose

2. if root partition is corrupt, use:

shutdown -rF now

3. for other partitions use

sudo fuser -km /mnt/storage; sudo umount mnt/storage; sudo fsck /dev/xvdb1
sudo fuser -km /mnt/dump; sudo umount mnt/dump; sudo fsck /dev/xvdc1

4. Content of fstab as of 27.05.14 # /etc/fstab: static file system information. # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # added gh, 2014-05-25: OUTPUT OF: sudo ls -l /dev/disk/by-uuid # 3682291c-fcd1-46e5-aed8-3aa7c62be2fb -> ../../xvda1 # 34b772ab-0277-49a3-bc56-9eae597ea0ec -> ../../xvdb1 # 2ef1acf0-a437-4f83-bf75-ac8477a1df63 -> ../../xvdc1 # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 # / was on /dev/xvda1 during installation UUID=3682291c-fcd1-46e5-aed8-3aa7c62be2fb / ext3 barrier=0,errors=remount-ro 0 1 ## swap was on /dev/xvda5 during installation ## UUID=e582e254-d32e-4ced-9d39-df5e5224b71c none swap sw 0 0 /dev/xvdd /media/cdrom0 udf,iso9660 user,noauto 0 0 # OLD NON-UUID version: # /dev/xvdb1 /mnt/storage ext4 barrier=0,rw,noatime,errors=remount-ro 0 0 UUID=34b772ab-0277-49a3-bc56-9eae597ea0ec /mnt/storage ext4 barrier=0,rw,noatime,errors=remount-ro 0 0 # OLD NON-UUID version: # /dev/xvdc1 /mnt/dump ext4 barrier=0,rw,noatime,errors=remount-ro 0 0 UUID=2ef1acf0-a437-4f83-bf75-ac8477a1df63 /mnt/dump ext4 barrier=0,rw,noatime,errors=remount-ro 0 0 # ##only for migration purposes ##/dev/xvde1 /mnt/storage2 ext4 barrier=0,rw,noatime,errors=remount-ro 0 0 ##/dev/xvdf1 /mnt/dump2 ext3 barrier=0,rw,noatime,errors=remount-ro 0 0