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Re: Ubuntu not using the swap partition

Derek Broughton

2008-03-26

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Ioannis Vranos wrote:

> Bob McConnell wrote:
>>
>> What does free tell you? The swap partition shows up under memory usage
>> not disk usage.
>
>
> john@(protected)
>         total     used     free   shared   buffers   cached
> Mem:     1035616   487784   547832       0     9812   269948
> -/+ buffers/cache:   208024   827592
> Swap:     971924    77968   893956
> john@(protected):~$
>
>
> Well, previously I used CentOS & Scientific Linux, and "df" showed the
> swap partition there. It looks like this isn't the case with Ubuntu Linux.

I don't think so:

[derek@(protected)
CentOS release 4.6 (Final)
Kernel \r on an \m

[derek@(protected)
Filesystem       1K-blocks    Used Available Use% Mounted on
/dev/md0         20161084 13561020  5575928 71% /
none             2537828      0  2537828  0% /dev/shm
/dev/md2         218130980 27003928 180046624 14% /home

As somebody else pointed out, since swap isn't a filesystem, it shouldn't
appear in df - even in CentOS.

As long as you have an entry in /etc/fstab like:
<SOMETHING> none swap sw 0 0
you're fine. <SOMETHING> will probably be a UUID= string, as it was created
by the installer, but could just as easily be /dev/hdc1
--
derek


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