[PROBLEM] How to increase swap size

[teekay]

Assuming your partition layout looks similar to this fdisk -l output

Code:

/dev/mmcblk0p1   *        2048       71679       34816    b  W95 FAT32
/dev/mmcblk0p2           71680    30767103    15347712   83  Linux
/dev/mmcblk0p3        30767104    31268863      250880   82  Linux swap / Solaris

and you use the (default) BTRFS filesystem, you should be able to do

1.) shrink the BTRFS partition with

Code:

mount /dev/mmcblk0p2 /mnt -o subvolid=0
btrfs fi resize -500m /mnt

2.) Stop the zram-swap service (if it's running at all), and run swapoff /dev/mmcblk0p3

3.) then use your favorite partition manager (parted, cfdisk etc..) to resize the partition behind it (mmcblk0p3)

4.) re-create swap

Code:

mkswap /dev/mmcblk0p3
swapon /dev/mmcblk0p3

Now you should have 500MB more swap.
I haven't tested this on Xbian, but it should work that way. Though it might also blow your RPi, burn your house etc etc..