Different devicenames on different kernels[SOLVED]

[larand54]

I have 3 disk units in my machine, one 120 gb/ide, one 300gb sata and one 500gb sata.
On the old kernel (2.6.34-r1) the devices got the following names:

300GB: /dev/sda
500GB: /dev/sdb
120GB: /dev/sdc

Then I compiled kernel 2.6.34-r12 with same config but using genkernel which created a initrd-file.

300GB: /dev/sdb
500GB: /dev/sdc
120GB: /dev/sda

So trying to run the new kernel won't work with current fstab.
I thought I could use UUID:s instead of the devicenames but there is no UUID for the swap-file so that doesn't work either.

I don't know what to do, maybe I shouldn't use genkernel?

any ideas?

[eccerr0r]

Swap has a label that you can use for match-by-name. They also have UUIDs now...

How are your drives connected to your machine? I've never had such radical device enumeration changes... Except for subsystem detect changes, they tend to remain the same each time. I think the biggest risk I have in changing enumeration is that it's hard to keep track of which SATA port is which on the motherboard... they all look like the same and so close together...
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Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?

[jathlon]

You could use labels instead of UUID. There is an switch for mkswap that you can use to assign a label to your swap.

This is what I have in /etc/fstab for swap;

[mr.sande]

I have had this issue myself when I used SATA and IDE devices together, I did the UUID thing.

[larand54]

Thank's for all help

So I just needed to run mkswap to get an UUID on the swap - great! But I decided to choose the "LABEL" way as
the file will be more readable in my opinion.

I also found out that you could use LABEL or UUID to specify root-mounting point in the GRUB-kernel command.