Three methods for retrieving the root password-general Linux technology-Linux technology and application information. For more information, see the following. 1. Use passwd root to change the status of a single user;
1. lilo
(1) When lilo appears: Enter linux single
Lilo: linux single
(2) Press enter to directly access the linux Command Line.
(3) # vi/etc/shadow
Delete the content in the first line, that is, the content before "root:" and "Next", starting with "root". The first line is similar to "root:..." And save
(4) # restart reboot. the root password is blank.
2. grub
(1) When the grub screen appears, use the up/down key to select the item that usually starts linux, and then press the e key.
(2) again with the up and down key to select the usual linux boot that (similar to kernel/boot/vmlinuz-2.4.18-14 ro root = LABEL =/), and then press the e key
(3) modify the currently seen command line and add single. The result is as follows:
Kernel/boot/vmlinuz-2.4.18-14 single ro root = LABEL =/
(4) Press enter to return, and then press the B key to start, you can directly enter the linux Command Line
(5) # vi/etc/shadow
Delete the content in the first line, that is, the content before "root:" and "Next", starting with "root". The first line is similar to "root:..." And save
(6) # restart reboot. the root password is blank.
2. Install the CD boot system and run the linux rescue status to connect the original/partition. The procedure is as follows:
