Filesystems, Disks and Memory

Hi,

running mount, I get the following, no part1 swap
as part1 swap has been created
and is listed below.
System works fine anyway.

As I cannot unmount part1, what is a standard procedure to make part1 on.

Jack

=============
..
[admin@oo root]$ free
total used free shared buffers cached
Mem: 30324 29532 792 0 4556 16084
-/+ buffers/cache: 8892 21432
Swap: 521968 0 521968
..
[admin@oo root]$ mkswap /dev/discs/disc0/part1
Setting up swapspace version 1, size = 534499328 bytes
..
[admin@oo root]$ swapon /dev/discs/disc0/part1
swapon: /dev/discs/disc0/part1: Device or resource busy
..
[admin@oo root]$ free
total used free shared buffers cached
Mem: 30324 29596 728 0 4604 16092
-/+ buffers/cache: 8900 21424
Swap: 521968 0 521968
[admin@oo root]$
================================
..
tried unmount Swap
..
[admin@oo root]$ umount /tmp/mnt/disc0_1
umount: Couldn't umount /tmp/mnt/disc0_1: No such file or directory
[admin@oo root]$
=============
..
[admin@oo /opt]$ mount
/dev/root on / type squashfs (ro)
none on /dev type devfs (rw)
proc on /proc type proc (rw)
ramfs on /tmp type ramfs (rw)
usbfs on /proc/bus/usb type usbfs (rw)
/dev/discs/disc0/part2 on /opt type ext3 (rw,noatime)
/dev/discs/disc0/part3 on /tmp/mnt/disc0_3 type ext3 (rw,noatime)
[admin@oo /opt]$
..
======
[admin@oo /opt]$ df -l
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 3008 3008 0 100% /
/dev/root 3008 3008 0 100% /
/dev/discs/disc0/part2
1198832 944088 193844 83% /opt
/dev/discs/disc0/part3
2140816 534128 1497940 27% /tmp/mnt/disc0_3
============
..
[admin@oo /opt]$ fdisk -l
..
Disk /dev/scsi/host0/bus0/target0/lun0/disc: 4009 MB, 4009754624 bytes
145 heads, 48 sectors/track, 1125 cylinders
Units = cylinders of 6960 * 512 = 3563520 bytes
..
Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target0/lun0/part1 1 150 521976 82 Linux swap
/dev/scsi/host0/bus0/target0/lun0/part2 151 500 1218000 83 Linux
/dev/scsi/host0/bus0/target0/lun0/part3 501 1125 2175000 83 Linux
[admin@oo /opt]$
==============
..

A dedicated swap partition does not get mounted, it is just used and is a raw filesytem.

Exactly.
You are right.

Code:

[admin@blechbuechse root]$ swapoff /dev/discs/disc0/part1
[admin@blechbuechse root]$ free
             total       used       free     shared    buffers     cached
Mem:         13964      13448        516          0       1548       7336
-/+ buffers/cache:       4564       9400
Swap:            0          0          0
[admin@blechbuechse root]$ swapon /dev/discs/disc0/part1
[admin@blechbuechse root]$ free
             total       used       free     shared    buffers     cached
Mem:         13964      13696        268          0       1548       7336
-/+ buffers/cache:       4812       9152

Swap:       500432          0     500432

Darius