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dandan
Asked: 2016-03-31 23:46:45 +0800 CST

linux red hat + how to start as single user mode from grub

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I have this in my linux machine 

  grub>

how from this I start the linux machine as single user mode?

in order to update some file after boot

linux

1 Answers

  1. Best Answer

    For RHEL < 7, quoting RHEL docs:

    At the GRUB splash screen at boot time, press any key to enter the GRUB interactive menu.

    • Select Red Hat Enterprise Linux with the version of the kernel that you wish to boot and type a to append the line.
    • Go to the end of the line and type single as a separate word (press the Spacebar and then type single). Press Enter to exit edit mode.

    For RHEL >= 7 Source:

    Scroll down until you find the actual kernel line. It starts with linux16 /vmlinuz-... and will span a couple of lines. You're now looking for the ro keyword in the kernel linux, which would start the OS with a read only (ro) file system, replace ro with rw init=/sysroot/bin/bash.

    Then hit CTRL+X to boot.

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