Re: Gparted resize linux swap partition

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Old Ranger wrote:
Greetings to all,
I recently installed 7.10 on part of my laptop, where FreeBSD used to
reside.
I wanted to try Ubuntu. I like it very well, for the week I've had it.
Works great!

Today, I noticed in the System Monitor that I grossly oversized my swap
partition during initial installation.
Physical memory is 2Gb. I thought I was specifying 2Gb of swap, when I
actually specified 20Gb. OOPS.

So, I downloaded the live CD of Gparted, burned the iso to CD, booted
up, and resized the swap to 2 Gb.
Also resized the /usr partition accordingly, etc...

Ok, now the question.

When I start the system, swap does not automatically come "on", it is
not automatically recognized by the OS.
However, I can turn "swapon" by using Gparted from the GUI while system
is running.
Sooooo, did I shoot myself in the foot? Or is there a way to make
Ubuntu be aware of the newly shrunk swap partition WITHOUT reinstalling
the entire system?

When you run swapon - are you specifying the partition or just using the
- -a option? Ubuntu uses UUID in the /etc/fstab file, not /dev mount
points, and the UUID of the swap partition changed when you sic'ed
gparted on it.
Use vol_id or something like it to figure out the new swap partition
uuid, or just replace the uuid with the /dev path if you prefer.

Hope that helps,
Brian

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