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Old 09-30-2007, 03:23 PM   #1
sixsidepentagon
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Expanded Swap for Hibernate, now what?


I'm using Ubuntu Fiesty Fawn, and wanted to use the hibernate function. I was told to make my swap partition bigger, so I made it 1 gig in size (my ram is 512).

Now what? I went to the gconf editor, it told me that I can't rewrite the can_hibernate variable.

Also, I shrunk my Windows partition to grow my Swap, but now Ubuntu can't read the windows partition! I save everything to that partition, how can I get it back?

Thanks in advance, sixside.
 
Old 09-30-2007, 04:52 PM   #2
sixsidepentagon
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I just booted from a liveCD, and its gParted could read from the windows partition perfectly. Is it because it's formatted as ntfs? But before ubuntu could read from it just fine. How does resizing affect it?
 
Old 09-30-2007, 05:02 PM   #3
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Did you run the editor with sudo ???.
As regards the NTFS, does Windoze see it all right ???.
 
Old 09-30-2007, 05:24 PM   #4
sixsidepentagon
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Quote:
Originally Posted by syg00 View Post
Did you run the editor with sudo ???.
As regards the NTFS, does Windoze see it all right ???.
Yep, I ran it with sudo. It said that it was not writable.

Edit: Uh, turns out I just needed to reboot Windows, which had to do a disk check. That's all better now

Last edited by sixsidepentagon; 09-30-2007 at 08:18 PM.
 
Old 09-30-2007, 09:47 PM   #5
sixsidepentagon
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A couple of other things I've tried:
When I tried to install uswsusp, it told me it didn't have access to a swap file, though I definitely have one, and it shows up on gParted.
When to the log in menu, selected hibernate from there. The screen just turned black, then white, then came back to the log in menu. Tried to suspend, didn't even do anything. When I got back in, my backgrounds and Nautilus got messed up, had to reboot.
 
Old 09-30-2007, 09:51 PM   #6
syg00
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Issue "swapon -s" - then you'll really know if you have an active swap. Should be messages in dmesg as well.
Did you issue mkswap against the bigger swap partition ???. If so the UUID will have changed, and fstab will be wrong and it won't mount. One of the things I didn't like about Feisty.
 
Old 09-30-2007, 10:33 PM   #7
sixsidepentagon
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Aha! swapon -s didn't return anything, so this is the culprit!
I tried that mkswap thing, it told me nowhere to set up swap on. Tried mkswap -a, gave me:
swapon -a
swapon: cannot stat /dev/disk/by-uuid/723a6cea-136d-470a-aa30-c66cf5829c94: No such file or directory
Edit: Woops, looks like gParted can do the job, all I had to do was right click and enable swapon. Still can't hibernate though.
Thanks for your help,
Sixside

Last edited by sixsidepentagon; 09-30-2007 at 10:46 PM.
 
Old 09-30-2007, 11:15 PM   #8
syg00
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Won't help - you'll drop it at the next reboot. Do a "ls -al /dev/disk/by-uuid/" and pick the one that corresponds to your swap partition.
Update /etc/fstab with the new UUID.
 
Old 10-01-2007, 04:34 PM   #9
sixsidepentagon
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Won't help - you'll drop it at the next reboot. Do a "ls -al /dev/disk/by-uuid/" and pick the one that corresponds to your swap partition.
Update /etc/fstab with the new UUID.
I don't know if I sound like I know what I'm doing, but I don't I put in that command you showed, and my swap partition (sda5) showed up, but I don't have a clue how to select it.

And I don't have a clue what a UUID is and where to put it in fstab, could you help me out?

This is my current fstab file:

proc /proc proc defaults 0 0
# Entry for /dev/sda4 :
UUID=bdd40363-72a6-4256-b520-75683d73e6d7 / ext3 defaults,errors=remount-ro 0 1
# Entry for /dev/sda2 :
UUID=42546B9C546B9209 /media/host0 ntfs-3g defaults 0 0
# Entry for /dev/ !! UNKNOW DEVICE !! :
UUID=723a6cea-136d-470a-aa30-c66cf5829c94 none swap sw 0 0
Thanks for your time,
Sixside

Last edited by sixsidepentagon; 10-01-2007 at 04:49 PM.
 
Old 10-02-2007, 04:52 PM   #10
syg00
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O.k., even the Ubuntu installer had issues - that comment for "UNKNOWN DEVICE" is for your swap. You need to replace that UUID value in the following line (yes, all of it) with the number that corresponds to your swap partition from the "ls" above. Note that the number won't necessarily be the same length.
You will have to do this any time you issue "mkswap" on this partition - from any system.
 
Old 10-02-2007, 06:57 PM   #11
sixsidepentagon
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Quote:
Originally Posted by syg00 View Post
O.k., even the Ubuntu installer had issues - that comment for "UNKNOWN DEVICE" is for your swap. You need to replace that UUID value in the following line (yes, all of it) with the number that corresponds to your swap partition from the "ls" above. Note that the number won't necessarily be the same length.
You will have to do this any time you issue "mkswap" on this partition - from any system.
Thanks for all your help, syg00!

So I tried what you said (and by "all of it" did you mean that part that said swap 0 0?) Even when I use that mkswap and swapon -a command, gParted doesn't show it as enabled.

Any steps I'm forgetting?
 
Old 10-02-2007, 07:06 PM   #12
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Nope - this bit ===> 723a6cea-136d-470a-aa30-c66cf5829c94 (in fstab)
needs to be replaced by
this bit ===> 7ccs23sdcea-1456786d-cf45 -> ../../sda5 (from the ls). Whatever that value is (after the time field) plug it into the fstab entry
 
Old 10-06-2007, 12:58 PM   #13
sixsidepentagon
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O.K, that worked, so now my swap is mounted on startup

But when I sudo gconf-editor, it still says that I can't rewrite the can_hibernate variable, because it's read only.
 
  


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