On Wed, 1 Jul 2020 14:59:43 -0700 (PDT)
Paul Heinlein <[email protected]> wrote:
> On Wed, 1 Jul 2020, Robert Kopp wrote:
>
> > I wanted to try this amazing new file system, which is now one of
> > the installation options for Focal. Unfortunately, I did not set up
> > enough swap space for hibernation, which I would like. So I'm
> > wondering if anyone could suggest a method of increasing swap space
> > on my system, which appears below. I have plenty of USB ports, so I
> > would even be open to using a flash drive for this purpose. I note
> > that it seems anxious to grab my external storage device, so
> > perhaps it would resume from something more appropriate.
> >
> > Filesystem 1K-blocks
> > Used Available Use% Mounted onudev
> > 16315052 0 16315052 0% /dev tmpfs
> > 3278412 2136
> > 3276276 1% /run rpool/ROOT/ubuntu_4uu5jb
> > 450678784 4601088 446077696 2% / tmpfs
> > 16392060 250784 16141276 2% /dev/shm
> > tmpfs 5120
> > 4 5116 1% /run/lock tmpfs
> > 16392060 0 16392060 0% /sys/fs/cgroup
> > bpool/BOOT/ubuntu_4uu5jb 1517056
> > 276096 1240960 19% /boot rpool/ROOT/ubuntu_4uu5jb/var/games
> > 446077824 128 446077696 1% /var/games
> > rpool/ROOT/ubuntu_4uu5jb/var/snap 446077952
> > 256 446077696 1% /var/snap rpool/USERDATA/robert_xnnmf3
> > 452219392 6141696 446077696 2% /home/robert
> > rpool/ROOT/ubuntu_4uu5jb/var/mail 446077824
> > 128 446077696 1% /var/mail rpool/ROOT/ubuntu_4uu5jb/srv
> > 446077824 128 446077696 1% /srv
> > rpool/ROOT/ubuntu_4uu5jb/var/lib 447230720
> > 1153024 446077696 1% /var/lib
> > rpool/ROOT/ubuntu_4uu5jb/var/lib/NetworkManager 446077952
> > 256 446077696 1% /var/lib/NetworkManager
> > rpool/ROOT/ubuntu_4uu5jb/var/www 446077824
> > 128 446077696 1% /var/www rpool/ROOT/ubuntu_4uu5jb/var/spool
> > 446077952 256 446077696 1% /var/spool
> > /dev/sda1 523248
> > 21268 501980 5% /boot/efi rpool/ROOT/ubuntu_4uu5jb/var/log
> > 446102400 24704 446077696 1% /var/log
> > rpool/ROOT/ubuntu_4uu5jb/usr/local 446077824
> > 128 446077696 1% /usr/local rpool/USERDATA/root_xnnmf3
> > 446078208 512 446077696 1% /root
> > rpool/ROOT/ubuntu_4uu5jb/var/lib/AccountsService 446077824
> > 128 446077696 1% /var/lib/AccountsService
> > rpool/ROOT/ubuntu_4uu5jb/var/lib/dpkg 446125184
> > 47488 446077696 1% /var/lib/dpkg
> > rpool/ROOT/ubuntu_4uu5jb/var/lib/apt 446144768
> > 67072 446077696 1% /var/lib/apt
>
> If you want to use your rpool, and you've got the space to spare,
> here's one way to go about it. This is for a 4GB swap partition.
>
> # create a zfs filesystem, with compression (optional)
> zfs create -V 4G -b 4096 \
> -o compression=lz4 -o logbias=throughput -o sync=always \
> -o primarycache=metadata -o secondarycache=none \
> rpool/swap
>
> # make it into swap fs
> mkswap -f /dev/zvol/rpool/swap
>
> # turn it on
> swapon /dev/zvol/rpool/swap
>
I would not recommend doing that. Swap on ZFS subvolume is not stable
on Linux yet and leads to lockups. I've done it myself and eventually
just placed a small SSD into my system and used that exclusively for a
large swap.
If you system starts locking up after setting up a Zswap that's why.
--
_________________________________________
/ During a visit to America, Winston \
| Churchill was invited to a buffet |
| luncheon at which cold fried chicken |
| was served. Returning for a second |
| helping, he asked politely, "May I have |
| some breast?" |
| |
| "Mr. Churchill," replied the hostess, |
| "in this country we ask for white meat |
| or dark meat." Churchill apologized |
| profusely. |
| |
| The following morning, the lady |
| received a magnificent orchid from her |
| guest of honor. The accompanying card |
| read: "I would be most obliged if you |
\ would pin this on your white meat." /
-----------------------------------------
\
\
/\ /\
//\\_//\\ ____
\_ _/ / /
/ * * \ /^^^]
\_\O/_/ [ ]
/ \_ [ /
\ \_ / /
[ [ / \/ _/
_[ [ \ /_/
_______________________________________________
PLUG mailing list
[email protected]
http://lists.pdxlinux.org/mailman/listinfo/plug
