set swap partition
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- Create a disk partition with swap type
- 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
- 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
- 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
- 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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