Linux chroot()命令

Posted 2022-08-24 Dontla

chroot，即 change root directory (更改 root 目录)。在 linux 系统中，系统默认的目录结构都是以 /，即以根 (root) 开始的。而在使用 chroot 之后，系统的目录结构将以指定的位置作为 / 位置。

用法：

[root@RV1126_RV1109:/usr/sbin]# chroot --help
Usage: chroot [OPTION] NEWROOT [COMMAND [ARG]...]
  or:  chroot OPTION
Run COMMAND with root directory set to NEWROOT.

  --groups=G_LIST        specify supplementary groups as g1,g2,..,gN
  --userspec=USER:GROUP  specify user and group (ID or name) to use
  --skip-chdir           do not change working directory to '/'
      --help     display this help and exit
      --version  output version information and exit

If no command is given, run '"$SHELL" -i' (default: '/bin/sh -i').

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report chroot translation bugs to <https://translationproject.org/team/>
Full documentation at: <https://www.gnu.org/software/coreutils/chroot>
or available locally via: info '(coreutils) chroot invocation'
[root@RV1126_RV1109:/usr/sbin]# 

参考文章：linux chroot 命令