mount & umount

Question 1

mount

Answer 1

The mount command serves to attach the filesystem found on some device to the big file tree.

Question 2

Mount [OPTIONS]

• a, –all, Mount all filesystems mentioned in fstab
• c, –no canonicalize, Don’t canonicalize paths.
• f, –fake, Dry run
• F, –fork, Fork off for each device. Use with -a.
• T, –fstab <path>, Alternative file to /etc/fstab</path>
• i, –internal-only, Don’t call the mount.<type> helpers.</type>

Answer 2

• l, –show-labels, Show fs labels.
• o, –options <list>, comma sep. list of mount options.</list>
• O, –test-opts <list>, Limi the set of fs.</list>
• r, –read-only
• t, –types <list>, limit the set of fs types.</list>
• v, –verbose
• w, –rw, –read-write

Question 3

mount

–source <src></src>

–target <target></target>

-n, –no-mtab

Answer 3

–source <src>, Specify source.</src>

–target <target>, Specify target.</target>

-n, –no-mtab, Don’t write to /etc/mtab

Question 4

mount [SOURCE]

• L, –label <label>, Synonym for LABEL</label>
• U, –uuid <uuid>, Synonym for UUID</uuid>

LABEL=<label>, Specifies device by fs label.</label>

UUID=<uuid>, Specifies device by fs UUID.</uuid>

PARTLABEL=<label>, Specifies device by partition label.</label>

PARTUUID=<uuid>, Specifies device by partition UUID.</uuid>

Answer 4

<device>, Specifies device by path.</device>

<directory>, Mountpoint for bind mounts.</directory>

<file>, Regular file for loopdev setup.</file>

Question 5

mount [OPERATIONS]

• B
• M
• R

Answer 5

• B, –bind, Mount a subtree somewhere else.
• M, –move, Move a subtree to somewhere else.
• R, –rbind, Mount a subtree and all submounts somewhere else.

Question 6

mount [OPERATIONS]

–make-shared, mark a subtree as shared.

–make-slave, mark a subtree as slave.

–make-private, mark a subtree as private.

–make-unbindable, mark a subtree as unbindable.

Answer 6

–make-rshared, recursively mark a whole subtree as shared.

–make-rslave, recursively mark a whole subtree as slave.

–make-rprivate, recursively mark a whole subtree as private.

–make-runbindable, recursively mark a whole subtree as unbindable.

Question 7

umount

Answer 7

The umount command detaches the mentioned file system(s) from the file hierarchy.

Question 8

umount

• a, –all
• A, –all-targets
• c, –no-canonicalize
• d, –detach-loop

–fake

-f, –force

Answer 8

• i, –internal-only
• n, –no-mtab
• l, –lazy, Detach fs now, clean later.
• O, –test-opts <list></list>
• R, –recursive
• r, –read-only
• t, –types <list></list>
• v, –verbose
• q, –quiet
• N, –namespace <ns></ns>