On 7/26/19 12:10 PM, Alexander Ruetz wrote:
I don’t know how risky it is to shrink existing partitions but you also could
use a swap file instead of a partition
So I just did this using the following commands:
fallocate --length 8GiB /mnt/swapfile
chmod 600 /mnt/swapfile
mkswap /mnt/swapfile
swapon /mnt/swapfile
Before swapon free showed:
total used free shared buff/cache
available
Mem: 3287328 2799184 105568 188488 382576 86712
Swap: 3419132 2047228 1371904
Afterwards:
total used free shared buff/cache
available
Mem: 3287328 2793736 110848 188448 382744 92232
Swap: 11807736 2062724 9745012
Thus meaning swapon is additive. I can understand that since I was
using the swap partition, it might have been bad to try and move all
that swapped stuff to the new file.
Now to change fstab. Right now I have:
UUID=05a77f3d-bd07-4a3b-87ee-482cb28dcfd2 none swap defaults 0 0
The instructions I saw was to add (or replace?) with
/mnt/swapfile swap swap defaults 0 0
Couple questions. When I ran mkswap:
# mkswap /mnt/swapfile
Setting up swapspace version 1, size = 8 GiB (8589930496 bytes)
no label, UUID=ad2c6856-023a-4fbe-97f9-594d260c85de
Should I use the file name or the UUID in fstab?
Do I replace the current swap entry in fstab, or if I put both in, do
both get used as I see right now?
# cat /proc/swaps
Filename Type Size Used Priority
/dev/sda2 partition 3419132 2153948 -2
/mnt/swapfile file 8388604 0 -3
thanks
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