[CentOS] Apparently no swap configured

Ian Masters ian at acces.co.jp
Tue Oct 28 06:34:31 UTC 2008


Thanks very much for the reply.

> If that volume is not in use by anything else you should
> be perfectly able to do:
> mkswap /dev/VolGroup00/swap
> swapon /dev/VolGroup00/swap
> then add something like this to fstab:
> /dev/VolGroup00         swap                    swap    defaults        0 0

Well it doesn't show up when I do 'df':

[root at mail ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
                      4.8G  446M  4.1G  10% /
                      1.9G  316M  1.5G  18% /var
                      9.5G  2.3G  6.7G  26% /usr
/dev/sda1              99M   32M   63M  34% /boot
tmpfs                 1.9G     0  1.9G   0% /dev/shm
                      9.9G  172M  9.2G   2% /home
                      1.9G   35M  1.8G   2% /tmp

Also, as I said /dev/VolGroup00/swap is not listed in /etc/fstab, but it
is listed in /dev/mapper/. Is that good enough confirmation that it is
not in use?

I'm very curious how I managed to get into this situation, using the GUI
install method. Any ideas on that? I'd prefer not to be in this
situation again.


Ian Masters

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