Etc/fstab - Revision history

Map7 at 01:37, 15 October 2007

2007-10-15T01:37:46Z

Jimbo at 15:19, 1 May 2007

2007-05-01T15:19:08Z

Ninereasons: keeping all "F" together in category

2006-05-04T15:18:14Z

keeping all "F" together in category

Ninereasons: For more meaningful category sorting

2006-05-04T15:15:38Z

For more meaningful category sorting

Jimbo: pimping new partitioning tips and tricks article

2005-07-18T08:41:06Z

pimping new partitioning tips and tricks article

Jimbo: specifying "sw" options on swap partition

2005-07-17T16:40:26Z

specifying "sw" options on swap partition

Jimbo at 19:20, 24 December 2004

2004-12-24T19:20:30Z

Jimbo at 19:18, 24 December 2004

2004-12-24T19:18:51Z

New page

'''/etc/fstab''' is the system config file used to control how filesystem devices are automatically mounted and/or fscked.

ph34r# cat /etc/fstab
# Device Mountpoint FStype Options Dump Pass#
/dev/ad4s1b none swap sw 0 0
/dev/ad4s1a / ufs rw 1 1
/dev/ad4s1e /tmp ufs rw 2 2
/dev/ad4s1f /usr ufs rw 2 2
/dev/ad4s1d /var ufs rw 2 2
/dev/ad6s1e /data ufs rw 2 2
/dev/acd0 /cdrom cd9660 ro,noauto 0 0
/dev/da4s1 /mnt/usbdrive msdos rw,noauto 0 0

In the '''fstab''' file shown above, we can see entries for all the standard system partitions, as well as /cdrom and /mnt/usbdrive. The first column in each entry denotes the actual device location, the second shows the filesystem directory the device will be mounted to, the third shows the type of filesystem used on the device, the fourth shows options to be followed, and the last two devices discuss [[dump]]ing and [[fsck]]ing of the device in question.

Since the /cdrom and /mnt/usbdrive devices are set to "noauto" in options, they will not be automatically mounted at boot time. Also note that they have "dump" and "pass" set to 0 and 0, so they will not be automatically backed up by the system "dump" command, nor will they be automatically [[fsck]]'ed at boot.

Also note that while the normal partitions are marked "rw", for ReadWrite, the CD-ROM is marked "ro" since it's a ReadOnly device.

'''mount''' and '''umount''' can be used with no argument other than the name of the mountpoint, for devices in /etc/fstab - for instance on the system whose '''fstab''' is displayed above, you could simply type '''mount /mnt/usbdrive''' instead of having to type out the full '''mount -t msdos /dev/da4s1 /mnt/usbdrive''' command.
[[Category:Important Config Files]]

@@ Line 19: / Line 19: @@
 For the devices listed in /etc/fstab, [[mount]] and [[umount]] can be used with no argument other than the name of the mountpoint - for instance on the system whose '''fstab''' is displayed above, '''mount /mnt/usbdrive''' and '''mount -t msdos /dev/da4s1 /mnt/usbdrive''' would both do the exact same thing.
 See also: [[Partitioning Tips and Tricks]]
 [[Category:Important Config Files|Fstab]]

← Older revision		Revision as of 15:18, 4 May 2006
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	See also: [[Partitioning Tips and Tricks]]		See also: [[Partitioning Tips and Tricks]]

−	[[Category:Important Config Files\|~~fstab~~]]	+	[[Category:Important Config Files\|Fstab]]

← Older revision		Revision as of 15:15, 4 May 2006
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	See also: [[Partitioning Tips and Tricks]]		See also: [[Partitioning Tips and Tricks]]

−	[[Category:Important Config Files]]	+	[[Category:Important Config Files\|fstab]]

← Older revision		Revision as of 08:41, 18 July 2005
Line 19:		Line 19:

	For the devices listed in /etc/fstab, [[mount]] and [[umount]] can be used with no argument other than the name of the mountpoint - for instance on the system whose '''fstab''' is displayed above, '''mount /mnt/usbdrive''' and '''mount -t msdos /dev/da4s1 /mnt/usbdrive''' would both do the exact same thing.		For the devices listed in /etc/fstab, [[mount]] and [[umount]] can be used with no argument other than the name of the mountpoint - for instance on the system whose '''fstab''' is displayed above, '''mount /mnt/usbdrive''' and '''mount -t msdos /dev/da4s1 /mnt/usbdrive''' would both do the exact same thing.
		+
		+	See also: [[Partitioning Tips and Tricks]]
		+
	[[Category:Important Config Files]]		[[Category:Important Config Files]]

@@ Line 16: / Line 16: @@
 Since the /cdrom and /mnt/usbdrive devices are set to "noauto" in options, they will not be automatically mounted at boot time.  Also note that they have "dump" and "pass" set to 0 and 0, so they will not be automatically backed up by the system "dump" command, nor will they be automatically [[fsck]]'ed at boot.
-Also note that while the normal partitions are marked "rw", for ReadWrite, the CD-ROM is marked "ro" since it's a ReadOnly device.
+Also note that while the normal partitions are marked "rw", for ReadWrite, the CD-ROM is marked "ro" since it's a ReadOnly device, and the swap partition is marked "sw" since it's a swap partition, not a normal filesystem.
 For the devices listed in /etc/fstab, [[mount]] and [[umount]] can be used with no argument other than the name of the mountpoint - for instance on the system whose '''fstab''' is displayed above, '''mount /mnt/usbdrive''' and '''mount -t msdos /dev/da4s1 /mnt/usbdrive''' would both do the exact same thing.
 [[Category:Important Config Files]]