Ubuntu11.10 upgrade to 12.04 keyboard and mouse unavailable Solution

Ubuntu11.10 is very beautiful. If you find that version 12.04 can be upgraded, you can upgrade it directly. During the upgrade, the VirtualBox virtual machine is enabled again, and the machine becomes stuck. After the host is powered and restarted, the keyboard and mouse cannot be used. After one afternoon's efforts, we finally solved the problem. The solution is as follows: 1. Press the power key to shut down and restart. 2. Press ESC to enter RECOVERYMODE upon restart. You may not be able to access it every time. You can try it several times. 3. Go to RECOVERYMOD.

Ubuntu 11.10 is very beautiful. If Ubuntu 12.04 can be upgraded, you can upgrade it directly. During the upgrade, the VirtualBox virtual machine is enabled again, and the machine becomes stuck. After the host is powered and restarted, the keyboard and mouse cannot be used. After an afternoon of hard work, the solution is as follows:

1. Press the power key to shut down and restart.

2. Press ESC to enter the recovery mode upon restart. You may not be able to access it every time. You can try it several times.

3. Several versions will be prompted when you enter the recovery mode, as shown below:

Ubuntu, kernel 2.6.17-10-generic

Ubuntu, kernel 2.6.17-10-generic (recovery mode)

Select the mode with recovery mode and press Enter.

4. wait a few seconds and enter a directory.

Resume

Clean

Root

Wait. Select resume and press Enter.

5. Enter the system again and use the keyboard and mouse.

Reminder: upgrade is risky. Be careful and be careful.