How to disable swap in CM6?

[Guest olivier k]

Hello,

I'm using CM6 0.30 and I'd like to disable the swap usage:

#free

total used free shared buffers

Mem: 107412 105236 2176 0 16

Swap: 19324 15664 3660

Total: 126736 120900 5836

#df

Filesystem 1K-blocks Used Available Use% Mounted on

tmpfs 53704 12 53692 0% /dev

tmpfs 53704 0 53704 0% /mnt/asec

/dev/block/mtdblock1 102400 97888 4512 96% /system

/dev/block/mtdblock2 92416 79680 12736 86% /data

/dev/block/mtdblock3 20480 1160 19320 6% /cache

/dev/block/mmcblk0p2 468885 2 443866 0% /sd-ext

/dev/block/vold/179:1

3439168 1525376 1913792 44% /mnt/sdcard

/dev/block/vold/179:1

3439168 1525376 1913792 44% /mnt/secure/asec

I've tried:

#swapoff /dev/block/mmcblk0p2 , but I got an invalid argument message.

I#d like to disable the swap, because since I'm able to move the apps on the SD, I don't need space anymore and I guess that swapping is using some processor resources. It would be perfect if I could handle the swap in a file (like /etc/fstab), to have it permanently off or on.

Thanks

[Guest twrock]

You could just delete your swap partition.

And Swapper2 will let you handle swap through a file instead of a partition.

Edited November 15, 2010 by twrock

[Guest olivier k]

You could just delete your swap partition.

And Swapper2 will let you handle swap through a file instead of a partition.

Thanks for your answer twrock, but I prefer to keep it (to be able to use it again without formatting the card)

There must be an easier way, no?

[Guest AntonioPT]

Thanks for your answer twrock, but I prefer to keep it (to be able to use it again without formatting the card)

There must be an easier way, no?

Just use Gparted (on Linux/Ubuntu) to delete the swap partition and to expand the other partitions to occupy the free space.

[Guest agitate]

#df

Filesystem 1K-blocks Used Available Use% Mounted on

/dev/block/mmcblk0p2 468885 2 443866 0% /sd-ext

I've tried:

#swapoff /dev/block/mmcblk0p2 , but I got an invalid argument message.

Are you sure you are giving the correct partition to the swapoff command? It looks like mmcblk0p2 is mounted as your sd-ext and so is probably ext2 or 3. You can find the currently mounted swap partitions in /proc/swaps

cat /proc/swaps

It you have FAT - EXT - SWAP partition order then it will be mmcblk0p3 and so you will need to do:

swapoff /dev/block/mmcblk0p3

Alternatively, swapoff can be run with the -a parameter to turn off all swap devices:

swapoff -a

[Guest olivier k]

Are you sure you are giving the correct partition to the swapoff command? It looks like mmcblk0p2 is mounted as your sd-ext and so is probably ext2 or 3. You can find the currently mounted swap partitions in /proc/swaps

cat /proc/swaps

It you have FAT - EXT - SWAP partition order then it will be mmcblk0p3 and so you will need to do:

swapoff /dev/block/mmcblk0p3

Alternatively, swapoff can be run with the -a parameter to turn off all swap devices:

swapoff -a

...

I've tried the latter one, but swapoff -a is complaining that there is no /etc/fstab file. I will try to find the correct partition within the /procs/swaps file. As I said, it is just for testing purposes, when I will find the appropriate settings I will either keep/delete the swap.

Edited November 16, 2010 by olivier k