中文 
青陆朱红
deepin
2026-03-08 19:19 deepin 在此备份下安装后的重要配置文件，算是来时路的坐标，避免自己走失。
/etc/apt/sources.list
国内deepin系统镜像源
deb https://community-packages.deepin.com/deepin/ apricot main contrib non-free#deb-src https://community-packages.deepin.com/deepin/ apricot main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/deepin/ apricot main contrib non-free
deb http://mirrors.ustc.edu.cn/deepin/ apricot main contrib non-free
deb http://mirrors.hust.edu.cn/deepin/apricot main contrib non-free
deb http://mirrors.aliyun.com/deepin/apricot main contrib non-free
deb https://mirrors.huaweicloud.com/deepin/ apricot main contrib non-free
deb http://mirrors.163.com/deepin/ apricot main contrib non-free
/etc/fstab
在重启前测试 /etc/fstab 配置是否正确命令行sudo mount -a;，避免配置错误导致无法开机
sudo update-initramfs -u -k all重建initramfs
/dev/sda3UUID=fd258eed-3e2e-4a3b-a8be-194ea1ee5f49 / ext4 defaults,noatime,discard 0 1
/dev/sda4UUID=accdba54-001e-4529-9d46-d3a885ef1ff2 /home ext4 defaults,noatime,discard 0 2
/dev/sda1 LABEL=EFI\040system\040partitionUUID=EB8C-CA83 /boot/efi vfat rw,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 2
/dev/sda2UUID=70e23c7a-77f4-44d8-9cbc-cd09d345782d none swap defaults,pri=-2 0 0
/etc/default/grub
通过sudo update-grub 命令更新grub内容，使其生效
DEEPIN_GFXMODE_DETECT=1
GRUB_BACKGROUND=/boot/grub/themes/deepin-fallback/background.jpg
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash loglevel=3 plymouth.enable=0"
GRUB_DEFAULT=0
GRUB_DISTRIBUTOR="/usr/bin/lsb_release -d -s 2>/dev/null || echo UOS 20"
GRUB_GFXMODE=1366x768,1360x768,1280x720,1024x768,auto
GRUB_THEME=/boot/grub/themes/deepin-fallback/theme.txt
GRUB_TIMEOUT=1
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Window round corner bug 
缘起下列短短的开机提示，因为这三行，反复重装，论坛、ai都不断搜索尝试，快搞崩溃了。重装了都还是问题依旧，毫无改变。
/init：line 83：wait—for-root：notfound
/dev/sda3: clean,249843/3283200 files,4388019/13107200 blocks
umount: can`t unmount /root/boot:Invalid argument
机子的分区，此次采用了全盘安装，把数据盘单列，为以后如果又要重装不至于所有的资料都格式化掉。增大根分区/的空间，之前每次安装软件，这个分区就“发胖”
sudo lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
sda
├─sda1 vfat FAT32 EB8C-CA83 290.4M 3% /boot/efi
├─sda2 swap 1 70e23c7a-77f4-44d8-9cbc-cd09d345782d [SWAP]
├─sda3 ext4 1.0 fd258eed-3e2e-4a3b-a8be-194ea1ee5f49 103G 7% /mnt
│ /
├─sda4 ext4 1.0 accdba54-001e-4529-9d46-d3a885ef1ff2 122.1G 0% /home
└─sda6 ntfs 文档 04EC5B08EC5AF400 185.5G 11% /media/xstar/文档
一、禁用plymouth服务，避免出现failed start Plymouth show screen问题。可能跟独显有关，开机画面舍弃了也好，加快开机速度。
systemctl disable plymouth-start.service
systemctl mask plymouth-start.service
修改GRUB配置，移除splash参数（splash是plymouth的启动画面开关）nano /etc/default/grub # 找到这行：GRUB_CMDLINE_LINUX_DEFAULT="splash quiet loglevel=3"# 修改为：GRUB_CMDLINE_LINUX_DEFAULT="quiet loglevel=3 nomodeset" （移除splash，保留nomodeset避免显卡冲突）# 3. 保存后更新GRUB sudo update-grub
二、老机子的独显优势在deepin下成为鸡肋，无法自由切换，集显和独显只能选一个驱动。Nvidia GT540M适合的驱动是legacy-390xx系列，使用Aptitude安装软件包，
sudo aptitude installnvidia- Switch to NVIDIA GPUinteloramd- Switch to integrated graphicson-demand- Enable dynamic switching (if supported)query- Check current GPU in use三、
umount: can't umount /root/boot错误依旧update-initramfs -u-k all 虽然重建但没什么效果。
四 sudo apt install --reinstall ipwatchd 安装ipwatecd.service 小问题轻松过。