What if I forget the root password?

Three methods:
1. When the system enters the single-user status, directly use passwd root to change
2. Install the CD boot system and run the Linux rescue status to connect the original/partition as follows:
CD/mnt
Mkdir HD
Mount-T Auto/dev/hdax (original/partition ID) HD
CD HD
Chroot ./
Passwd Root
This can be done.
3. Take the local hard disk and mount it to other Linux systems. The method is the same as the second one.
Rh8 Medium
I. Lilo
1. When the Lil prompt appears, type linux single
Linux single
2. Press enter to directly access the Linux Command Line
3. # vi/etc/shadow
Delete the contents of the first line, that is, the content before "root" and "Next", in the line starting with "root,
The first line is similar
Root ::......
Save
4. # restart reboot. the root password is blank.
Ii. Grub
1. When the grub screen appears, use the up and down keys to select the one you usually start Linux (do not select DoS), and then press the e key
2. Use the up/down key again to select the one that you usually start Linux.

(Similar to kernel/boot/vmlinuz-2.4.18-14 Ro root = label =/), then press E
3. Modify the command line you see 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 contents of the first line, that is, the content before "root" and "Next", in the line starting with "root,
The first line is similar
Root ::......
Save
6. # restart reboot. the root password is blank.