[ubuntu-uk] kernels and releases

[luxxius]

After a Dapper > Edgy > Feisty upgrade on my old Dell Inspiron laptop, I 
had a problem with very slow booting, as described in 
https://answers.launchpad.net/ubuntu/+question/8390.  (This looks like a 
bug in kernel 2.6.20 that's gone on for a while.)  I fixed it by editing 
grub to default to kernel 2.6.17, which works fine.

    What I'm wondering is how the kernel versions relate to the Ubuntu 
releases.  Specifically, my resources.list file still refers to feisty 
repositories.  Now that I've downgraded my laptop to 2.6.17-11 (IIRC), 
will this matter, or do I need to change it to ?Edgy repositories?

    Sorry if this is a stupid question with a dead obvious answer!