Three methods to retrieve the LinuxRoot Password

Article Title: three methods to retrieve the LinuxRoot password. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

1. Use passwd root to change the status of a single user;

1. lilo

When lilo appears: Enter linux single

Lilo: linux single

Enter the linux Command Line

# 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

# Reboot restart. the root password is blank.

2. grub

When the grub screen appears, use the up/down key to select the item that usually starts linux, and then press the e key.

Use the up/down key again to select the item that usually starts linux, and then press the e key.

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 =/

Press enter to return, and then press the B key to start, you can directly enter the linux Command Line

# 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

# Reboot restart. 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:

Cd/mnt mkdir hd mount-t auto/dev/hdaX hd cd hd chroot./passwd root

3. Remove the hard disk of the Local Machine and mount it to other Linux systems. The method is the same as that of the second one.

1. Use passwd root to change the status of a single user;

1. lilo

When lilo appears: Enter linux single

Lilo: linux single

Enter the linux Command Line

# 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

# Reboot restart. the root password is blank.

2. grub

When the grub screen appears, use the up/down key to select the item that usually starts linux, and then press the e key.

Use the up/down key again to select the item that usually starts linux, and then press the e key.

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 =/

Press enter to return, and then press the B key to start, you can directly enter the linux Command Line

# 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

# Reboot restart. 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:

Cd/mnt mkdir hd mount-t auto/dev/hdaX hd cd hd chroot./passwd root

3. Remove the hard disk of the Local Machine and mount it to other Linux systems. The method is the same as that of the second one.