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Under Linux, several filesystems and filesystem types
(e.g. ext2
, minix
, msdos
,
vfat
,iso9660
) can be assembled into a great
filesystem in /
.
This mechanism is necessary, because under Linux
different logic drives as e.g. in DOS (C:, D:, etc.) do not exist.
All physical drives - same whether hard disk, diskette,
CD-ROM drive, MO, ZIP drive, etc. - seem to the Linux system
as filesystems, which are integrated into the above mentioned filesystem
/
.
One calls this procedure mount. When one wants to
remove again a filesystem from the /
filesystem,
one speaks about unmount.
Conditions for joining and mounting filesystems are:
mount
must support this filesystem type
.
mkdir
.
mount
command or must be made known in the file
/etc/fstab
.
The (regularly, e.g. at system start) filesystems to be mounted
are listed in the file /etc/fstab
, a line per filesystem
. A
man fstab man mounttells details about this.
/etc/fstab
should return the later mount sequence
.
This is in general correctly arranged by YaST, so that
e.g. /usr/local
is mounted right after /usr
. The mount
command itself cannot take this into consideration
and mounts the filesystem as the sequence
appears in /etc/fstab
.
Interesting for the use of either mount
or /etc/fstab
are the options user
and noauto
.
user
allows to any user to mount or unmount a filesystem
(interesting at the CD-ROM).
noauto
arranges not to mount automatically at a system start
the identified partition (particularly mount -a
). It
must be explicitly mounted manually. This
is useful with media that are not always available at a system start
(again here for example the CD-ROM).
Please read as well the article about Division of the hard disk into partitions.
See also:
Keywords: PARTITION, FILESYSTEM, FSTAB, ETC, MOUNT, AUTOMOUNT
Feedback welcome: Send Mail to martin.scherbaum@suse.de (Please give the following subject: SDB-maddin_fstab
)
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