new kernel(2.6.0) --> no more swap

elluva · 01-12-2004, 02:48 AM

I compiled and installed the 2.6.0 kernel yesterday and noticed it being really slow at some point, so I emediatly checked out the status of my memory and saw that he doesn't see or know that I have a swap partition...
My 2.4.22 (Backup) kernel does see it because he still works perfectly... And yes I have a swap partition...

How do I resolve this problem? Did I forget something in the kernel's configuration?

tnx 4 all help...

Y0jiMb0 · 01-12-2004, 03:47 AM

Hi!
Check your ".config" file (mine is in "/usr/src/linux/"), and look for a line like this one:

Code:

CONFIG_SWAP=y

(It should be at the very beginning of the file, under "General setup" section.)
if you have instead

Code:

CONFIG_SWAP=n

, that's your problem, you should recompile.
Regards

Y0jiMb0 · 01-12-2004, 03:51 AM

... I forgot

This option ("CONFIG_SWAP") is found, when you do "make menuconfig", under "General setup", and is called "Support of paging of anonymous memory".
Regards

elluva · 01-12-2004, 04:09 AM

nope, I have CONFIG_SWAP=y

I compiled this kernel based on my previous compile (and that kernel is my current backup kernel). It's really anoying since I don't have much ram 128Mb...

Y0jiMb0 · 01-12-2004, 04:15 AM

...and, of course, your fstab didn't change in the process; i.e. you have a line like

Code:

/dev/hdc2        swap             swap        defaults         0   0

in your "/etc/fstab", don't you?
Regards

elluva · 01-12-2004, 04:43 AM

Stupid of me overlooking this, but still... how is it possible that the fstab file changes with a kernel compile???

tnx!

Y0jiMb0 · 01-12-2004, 04:50 AM

..I know, I know. I didn't mean

Quote:

that the fstab file changes with a kernel compile

but, I thought it could be changed (you or someone else).
Anyway, I didn't read properly

, your first post tells

Quote:

My 2.4.22 (Backup) kernel does see it because he still works perfectly...

Does the "dmesg" say something about it?
Regards

elluva · 01-12-2004, 04:59 AM

no I am sorry I wasn't quit clear in my previous post... it is solved, thi swas my problem.
I can't understand what removed the line in /etc/fstab, since I never altered this file.
I did on Mandrake, but on slack all seem to be in place as it was... It couldn't be someone else either, since I am the only one using this pc.
Hmm, strange...

well, it is solved anyway... next time my pc is running in slowmo, i'll check my fstab

.

Greetz and many tanks,
Elluva

Y0jiMb0 · 01-12-2004, 05:10 AM

I misunderstood you, sorry!

happy to hear you got swap again, though

But, it's strange...

I'm just curious; what do you mean with

Quote:

I did on Mandrake, but on slack all seem to be in place as it was...

Regards

elluva · 01-12-2004, 05:23 AM

well on mandrake I had to change some things in /etc/fstab, some things that weren't mounted automatic.
Since everything mounted correctly on slackware, I didn't change the fstab file, 'cause i didn't need to...

Y0jiMb0 · 01-12-2004, 05:51 AM

so both boot the same kernel? do slack and mdk share the "/boot" partition? or did you compile the kernel for only one of them?
Regards

elluva · 01-12-2004, 05:56 AM

they share /boot there I have:

*The original kernels that came with mdk to boot mdk. (mdk)
*My previous precompiled kernel (2.4.22) which I used as backup kernel (Slack)
*My new compiled 2.6.0 kernel (slack)

The only thing shared between mdk and slack are the /home and /boot partitions...