Alienware Ubuntu Based Systems: Disable Secure Boot to Modify or Replace the bootloader
Summary: How to disable Secure Boot on an Ubuntu-based Alienware computer.
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Symptoms
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Ubuntu Based Systems: |
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Alienware Supported Systems:
| Alienware X51 R2 |
Other Dell Supported Systems:
| Precision (Kernel v14.04 SP1) |
3620 | 3420 | 7510 | 7710 | 3510 | 5510 | ||||||
| Optiplex (Kernel v14.04 SP1) |
7040 | 5040 | 3040 | 7440 | 3240 | |||||||
| Latitude (Kernel v14.04 SP1) |
E7270 | E7470 | E5260 | E5460 | E5560 | 3470 | ||||||
| 3570 | 3350 | 5414 | 7214 | 7414 | 7370 | |||||||
| Latitude (Kernel v14.04) |
3160 | 3460 | 3560 |
Ubuntu based systems like the Alienware X51 R2 and other Dell systems come with a function called "Secure Boot" enabled. Secure Boot allows only bootloaders signed with trusted key pairs to be booted on a system.
In accordance with the GPLv3, customers are required to be able to make modifications or replace the GRUB2 bootloader shipped with some Linux systems that have secure boot enabled. GRUB2 is an open source bootloader that has been signed using a private key.
Customers are welcome to either use their own public/private key pair for signing the bootloader or disable secure boot if they want to replace or modify the bootloader.
Cause
Disabling "Secure Boot"
- Turn on your system
- Tap the F2 key as the system turns on
- You will access the system setup utility
- Click the Boot tab
- Highlight Secure Boot
- Press Enter, select Disable and press Enter again.
- Press F10 and select Yes
Resolution
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Affected Products
Alienware X51 R2Article Properties
Article Number: 000148406
Article Type: Solution
Last Modified: 26 Feb 2021
Version: 4
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