topic fail to enable aux swap in Operating System - HP-UX

fail to enable aux swap

Tina Waitherwerch — Thu, 24 Oct 2002 16:06:47 GMT

after a reboot, I had a FAIL on enable aux swap. swapon says all 3 are enabled, but rc.log reports the following: WHO do I believe??

Enable auxiliary swap space
Output from "/sbin/rc1.d/S500swap_start start":
----------------------------
Enabling device paging on /dev/vg04/swap4.
Enabling device paging on /dev/vg00/lvol2.
/usr/sbin/swapon: /dev/vg00/lvol2 is already enabled for paging.
Enabling device paging on /dev/vg01/swap1.
Warning: swapon returned exit code: 1
"/sbin/rc1.d/S500swap_start start" FAILED

Re: fail to enable aux swap

S.K. Chan — Thu, 24 Oct 2002 16:14:08 GMT

The error is with your primary swap I think. Take a look at /etc/fstab file and check if /dev/vg00/lvol2 is in that file. If it is, delete that entry. Primary swap should not be in /etc/fstab. What happened is swap_start is trying to enable an already-enabled swap (ie the primary swap /dev/vg00/lvol2).

Re: fail to enable aux swap

Tina Waitherwerch — Thu, 24 Oct 2002 16:18:12 GMT

Yes, /dev/vg00/lvol2 was in /etc/fstab! I removed it, but won't be able to reboot until this weekend. Thank you for your help.

Re: fail to enable aux swap

S.K. Chan — Thu, 24 Oct 2002 16:25:10 GMT

Not a problem, you don't even have to reboot at all.

Re: fail to enable aux swap

Martin Johnson — Thu, 24 Oct 2002 16:25:19 GMT

Do a "lvlnboot -v". It should show swap on lvol2. This is your primary swap and is enabled during the boot. Your S500swap_start is trying to enable it again. Look at the script and see where it is getting the info for enabling swap. Delete the entry for lvol2.

HTH
Marty

Re: fail to enable aux swap

Jeff Schussele — Thu, 24 Oct 2002 16:35:55 GMT

Hi Tina,

SK's correct you shouldn't have to reboot.
Just run swapinfo and verify the lvol2 swap device is listed.
You just needed to edit /etc/fstab & remove it's entry to avoid the "error" message.

Rgds,
Jeff

Re: fail to enable aux swap

Tina Waitherwerch — Thu, 24 Oct 2002 16:50:39 GMT

Okay, the lvlnboot -v looked good, but when I do a dmesg, the size for swap is 2gb, but I have 3 swap spaces of 1024gb each = 3gb??? Please translate.
Swap device table: (start & size given in 512-byte blocks)
entry 0 - major is 64, minor is 0x2; start = 0, size = 2097152

Re: fail to enable aux swap

S.K. Chan — Thu, 24 Oct 2002 16:58:04 GMT

The "dmesg" output ONLY shows you the primary swap configured. Use ..
# swapinfo -ta
to see all of your swap configured. In your case the 2097152 you see in dmesg is actually 2097152/2=1048576 which should match the primary swap in ..
# swapinfo -ta