set swap partition

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1. Create a disk partition with swap type
2. use fdisk -l list partion

Device        Start       End  Sectors  Size Type
/dev/sda1      2048     18431    16384    8M BIOS boot
/dev/sda2     18432  37748735 37730304   18G Linux filesystem
/dev/sda3  37748736  41656319  3907584  1.9G Linux swap
/dev/sda4  41656320 125827071 84170752 40.1G Linux filesystem
### check available memory
tester@192:~> free -h
              total        used        free      shared  buff/cache   available
Mem:          3.8Gi       727Mi       2.3Gi        19Mi       852Mi       2.9Gi
Swap:            0B          0B          0B

3. make swap

tester@192:~> sudo mkswap /dev/sda3
mkswap: /dev/sda3: warning: wiping old swap signature.
Setting up swapspace version 1, size = 1.9 GiB (2000678912 bytes)
no label, UUID=7ca71514-2996-46a2-ac69-e452bdab5928

4. list /etc/fstab

tester@192:~> cat /etc/fstab
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /                       btrfs  defaults                      0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /var                    btrfs  subvol=/@/var                 0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /usr/local              btrfs  subvol=/@/usr/local           0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /tmp                    btrfs  subvol=/@/tmp                 0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /srv                    btrfs  subvol=/@/srv                 0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /root                   btrfs  subvol=/@/root                0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /opt                    btrfs  subvol=/@/opt                 0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /home                   btrfs  subvol=/@/home                0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /boot/grub2/x86_64-efi  btrfs  subvol=/@/boot/grub2/x86_64-efi  0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /boot/grub2/i386-pc     btrfs  subvol=/@/boot/grub2/i386-pc  0  0
UUID=55bb38b8-de82-46f2-a09d-ac3e19326ae1  swap                    swap   defaults                      0  0
UUID=a743e1b2-4b45-4c94-9bde-28c8a88fe6fb  /.snapshots             btrfs  subvol=/@/.snapshots          0  0

5. enable swap

tester@192:~> sudo swapon /dev/sda3
tester@192:~> free -h
              total        used        free      shared  buff/cache   available
Mem:          3.8Gi       737Mi       2.3Gi        19Mi       853Mi       2.8Gi
Swap:         1.9Gi          0B       1.9Gi

输入法

设置是否显示输入法状态栏 - Stuats Panel Hide mode

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音量调整 over 100%

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keyboard shortCuts 快捷键 setting.device.Keyboard Shortcuts

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如何在wyland and X11之间进行切换

查询是哪一种类型

tester@192:~/Desktop> echo $XDG_SESSION_TYPE 
x11

設置開機啓動 开机启动

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