Re: Swap not enabled?

["Aaron Klein" <klein.aaron@gmail.com>]

I played with it some more and I cant seem to locate the UUID of the
swap.  Even with tree /dev/disk I did play around with some things and
since I know the main disk that should be /dev/sda had the swap on
/dev/sda5 when I put the second disk on the unit gets addressed as
/dev/sdb I tried to mount /dev/sdb5 and even though it failed before I
sent the reply below I now have it mounting fine after changing the
fstab line for swap from /dev/sda5 to /dev/sdb5 for the swap.

I have to say things are much quicker now.

On 6/24/07, David Fokkema <dfokkema@ileos.nl> wrote:
> On Sun, 2007-06-24 at 15:46 -0400, Aaron Klein wrote:
> > # /etc/fstab: static file system information.
> > #
> > # <file system> <mount point>   <type>  <options>       <dump>  <pass>
> > proc            /proc           proc    defaults        0       0
> > UUID=63503a74-6e77-4623-bcea-9574740d3298       /               ext3    defaults
> > ,errors=remount-ro 0       1
> > /dev/sda5       none            swap    sw              0       0
> > /dev/sda1       /media/usb0     auto    rw,user,noauto  0       0
> > /dev/sda5       /media/usb1     auto    rw,user,noauto  0       0
> > UUID=a50446ca-dcb2-4988-a19f-3dc9967e1449      /disk2           ext3    defaults
> > ,errors=remount-ro 0       2
> >
> > I get nothing when i do a swapon -s
>
> Then you don't have swap!
>
> > I know why I belive.  I have two disks attached to my NSLU2.  The main
> > disk in port 1 usually gets /dev/sda so the root partion would be
> > /dev/sda5  When I boot with just 1 disk attached i get the swap
> > partion like I should.  When the second disk is attached it seems like
> > I dont get the swap partion.  I think the main disk gets mounted
> > sometimes as /dev/sdb.  I have the two main disk partions being
> > mounted by UUID but I dont seem to have a UUID that I can find for the
> > swap.
>
> I think your right. So what's the UUID of a swap partition? Good
> question. However, I think there was another thread (something to do
> with RAID) which also had this kind of problem. You could search the
> list for something like 'UUID'.
>
> Maybe someone knows the correct solution by heart?
>
> David
>
>
> >
> > On 6/24/07, David Fokkema <dfokkema@ileos.nl> wrote:
> > > On Sun, 2007-06-24 at 10:15 -0400, Aaron Klein wrote:
> > > > How can I tell if my system will use the swap space?  Im running out
> > > > of ram and my system really starts to crawl and I never see anything
> > > > used as far as swap using the top command.
> > > >
> > >
> > > Just do `swapon -s`. That will tell you if you use a swap partition and
> > > how much of it is used.
> > >
> > > David