plymouth处理Ubuntu的启动画面。
/usr/share/doc/plymouth/README.Debian说明了如何删除它:
There are two methods to disable the splash screen. Both have the
same effect. Your boot will show such messages as are emitted by
the starting services, and will still be able to prompt if needs be.
1) Remove all of the plymouth-theme-* packages from your system,
including the text ones. Plymouth will remain installed to
permit boot-time prompts.
2) Remove "splash" from the kernel command-line. You can do this
per-boot, or make it permanent by changing the
GRUB_CMDLINE_LINUX_DEFAULT line in /etc/default/grub
请注意,您必须update-grub在第二种方法之后运行。
plymouth也负责/var/log/boot.log。
以上提供了更多引导消息dmesg。