No swap :( [solved]

Question

following problem:
sometimes swap would be mounted, sometimes not!
but the log says that it is mostely not mounted !
i never get it to mind, all the time!
the log:
                                                http://www.kernel-oops.de/index.php?sit … e&show=558
# /etc/fstab: static file system information
none /dev/pts devpts defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/cdrom /mnt/cd iso9660 ro,user,noauto,unhide 0 0
/dev/dvd /mnt/dvd udf ro,user,noauto,unhide 0 0
/dev/fd0 /mnt/fl vfat user,noauto 0 0
/dev/sda4 / ext3 defaults 0 1
/dev/sda3 /boot ext2 defaults 0 1
/dev/sda2 swap swap defaults 0 0
#/dev/sda2 none swap defaults 0 0
#/dev/sda2 none swap sw 0 0
/dev/sdb1 /mnt/exthdd ntfs noauto,uid=1000
/dev/sda1 /mnt/windows ntfs uid=1000
the two outcommended /dev/sda2 entries, were tests, because i got differend informations from different systems  nothing helped
in the log was a tip, i should test swapon -a:
[root@LinuXanT thecrazylol]# swapon -a
swapon: /dev/sda2: Das Argument ist ungültig
[root@LinuXanT thecrazylol]#
output of cfdisk:
cfdisk 2.12r
Festplatte: /dev/sda
Größe: 80026361856 Bytes, 80,0 GB
Köpfe: 240 Sektoren pro Spur: 63 Zylinder: 10337
Name Flags Part. Typ Dateisystemtyp [Bezeichner] Größe (MB)
sda1 Boot Primäre NTFS ] 70354,21
sda3 Primäre Linux ext3 131,61
sda2 Primäre Linux swap / Solaris 1021,91 *
sda4 Primäre Linux ext3 8515,56 *
oh i forgot:
Linux LinuXanT 2.6.19-ARCH #1 SMP PREEMPT Tue Dec 12 12:47:42 CET 2006 i686 Intel(R) Celeron(R) M processor         1.40GHz GenuineIntel GNU/Linux
edit: ok i have a solution:
mkswap /dev/sda2; swapoff -a && swapon -a
that was it

Answer 1

Rexilion wrote:
I have my swap encrypted by a key that is stored in cleartext on my disk. Everytime I reboot or resume, the key is shredded and the swap is regenerated with another randomly chosen key (if possible).
That should take care of the security issue's. But it's not good for performance.
That is a good idea as well.  I considered that, but with how my system is setup I wanted to avoid that if possible.  My other partition with Kali is setup with full-disk encryption and an encrypted swap file, but that's more-so just because it seems like good practice.  Not sure I want the performance hit on my Arch setup.  However, I may additionally encrypt my swap file as well.  I decided to reduce it in size as I have a fairly good amount of ram (16gb), I really barely use any of it except when using virtualbox and such (which is quite often).
Last edited by thewooster (2014-05-09 16:22:26)