Hey! Where'd my swap go?

I've just noticed that I've got no swap space! (Dell 1525 running Ubuntu 8.10).

I first installed my laptop with Ubuntu 8.04, and later upgraded to 8.10. After the upgrade I noticed that hibernate no longer worked, and I think (from memory) I found an error message saying something about not enough swap space. I briefly thought about trying to find out how to add more swap (I already had a 4G partition defined, and I've only got 2G ram) but then I swiftly moved on to other more pressing issues.

Well, just recently I fired up System Monitor to check on a process, and notice in the bottom right corner it said there was no swap space. Firing up 'top' confirmed this - my system had zero swap!

I could see that I had a swap partition defined:
paul@dell1525:~$ sudo blkid
/dev/sda8: TYPE="swap" UUID="4bd53cb9-611c-4e57-a9df-4754d6bcdd65"


But the corresponding entry in /etc/fstab had a different entry:.
# /dev/sda8
UUID=e6eb6c47-599c-4612-ac8a-287279ee438b none swap sw 0 0


The UUIDs didn't match! Thus no swap. Correcting the fstab file and rebooting resolved the problem, but I don't know what caused it.

Right now, top shows I've got my 4G swap space being used, and hibernate has successfully hibernated and resumed. Perhaps now this laptop will perform better too?

As for adding more swap space, I don't think I need to do that right now - but here is a good article for future reference.

Popular posts from this blog

Slow, Buffering, Stuttering Udemy Video

Udemy video has been completely unusable from my home broadband connection. Videos would take minutes to start playing and then continuously stutter and buffer. Searching for a solution I came across this Reddit post - and I found the solution was to change my DNS to use CloudFlare (1.1.1.1). After changing my AppleTV from automatic DNS to manual and using 1.1.1.1 video playback from the Udemy app has been as you would expect. I don't know why this helps, but it seems to have so far.
Read more

Intellij tip - Joining multiple lines into one

There are times when you have some code with each statement on its own line, and you want to move it all onto one line. CSS is where I've needed this the most. You start off with some code like this: And really want this: Intellij has a very simple way to do this by using Ctrl-Shift-J - for more information, see http://www.jetbrains.com/idea/webhelp/joining-lines-and-literals.html
Read more

Looking for IT work in Australia? JobReel.com.au!

I'm currently looking for contract work, and all of the usual places offer vague job descriptions that makes it hard to differentiate one from the other. This makes it hard to decide which ones to apply for, and almost always mean that you end up applying for jobs that are totally inappropriate. Now there is JobReel.com.au - much along the lines of jobs.joelonsoftware.com , positions must display the employer. I'm still looking for a site that lets me specify location, price range, responsibilities and technologies - but JobReel is closer than any of the others, and from what I've seen so far, the job descriptions are more useful and realistic. It looks relatively new to the scene - good luck!
Read more