_size=4g _location=/ fallocate -l $_size $_location/$_size.swap chmod 600 $_location/$_size.swap mkswap $_location/$_size.swap echo "$_location/$_size.swap none swap defaults 0 0" >> /etc/fstab swapon -a
btrfs:
btrfs filesystem mkswapfile -s $_size $_location/$_size.swap
_target=/mnt mount -t proc proc $_target/proc mount -t sysfs sys $_target/sys mount -o bind /dev $_target/dev mount -t devpts pts $_target/dev/pts/ chroot $_target
Configuration:
grep -r . /sys/module/zswap/parameters/
Stats:
grep -r . /sys/kernel/debug/zswap/
Refer to `df` or `mount -l`, my excludes:
/proc/* /dev/* /sys/* /tmp/* /mnt/* /media/* /run/* /var/lock/* /var/run/* /var/log/*.gz /var/log/**/*.gz /var/cache/pacman/pkg/* /home/**/.cache/chromium/* /home/**/.ccache/* /home/**/.avfs /home/**/.gvfs /lost+found
Then just `tar cf` as root(-X the excludes rule file).
Restore:
Boot livecd/liveusd, `cfdisk` and `mkfs`, then mount it(see instructions above) to /target. Then:
tar xf /path/to/your/backup.tar -C /target
or get backup and extract in pipe:
ssh user@host cat /path/to/your/backup.tar |tar x -C /target
Rsync:
# rsync -aAXvzP --delete / /target/ --exclude-from=/path/to/backup.excludes
Get UUID using `blkid` and change `/etc/fstab` of target accordingly.
If newly-installed, `chroot` into it, run `grub-install` and `update-grub`, give it a `reboot` and it would work! Else, just update UUIDs in /boot/grub/menu.lst for grub-legacy.
For those who doesn't have this:
grub-mkconfig -o /boot/grub/grub.cfg
echo "GRUB_RECORDFAIL_TIMEOUT=5" >> /etc/default/grub
echo "noop" > /sys/block/`readlink /dev/disk/by-uuid/$UUID|sed "s/.*\(sd[a-z]\).*/\1/"`/queue/scheduler
echo 'deb http://archive.ubuntu.com/ubuntu/ artful main' >> /etc/apt/sources.list.d/artful.list echo -e 'Package: *\nPin: release a=artful\nPin-Priority: 100\n' >> /etc/apt/preferences.d/artful.pref apt-get update apt-get install -t artful linux-image-generic linux-generic linux-headers-generic linux-libc-dev
References: