DKMS

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 2. Enter a temporary password between 8 to 16 digits. (For example, 12345678, we will use this password later.)
 3. Enter the same password again to confirm
 4. Reboot the system and press any key when you see the blue screen (MOK management)
 5. Select '''Change Secure Boot state'''
 6. Press the corresponding password character and press Enter. Repeat this step several times to confirm previous temporary password like '''12345678''' in step 2&3. For exmaple, '''2''' for this screen
 7. Select '''Yes''' to disable Secure Boot in shim-signed
 8. Press Enter key to finish the whole procedure		  2. Enter a temporary password between 8 to 16 digits. (For example, 12345678, we will use this password later.){{attachment:Enter_a_temporary_password.png}}
 3. Enter the same password again to confirm{{attachment:confirm_password.png}}
 4. Reboot the system and press any key when you see the blue screen (MOK management) {{attachment:press_any_key.png}}
 5. Select '''Change Secure Boot state''' {{attachment:change_secureboot_state.png}}
 6. Press the corresponding password character and press Enter. Repeat this step several times to confirm previous temporary password like '''12345678''' in step 2&3. For exmaple, '''2''' for this screen {{attachment:enter_password.png}}
 7. Select '''Yes''' to disable Secure Boot in shim-signed {{attachment:select_yes.png}}
 8. Press '''Enter''' key to finish the whole procedure {{attachment:press_enter_key.png}}

DKMS will not work after 3.19.0-65 or above Kernel

DKMS will not work after 3.19.0-65 or above Kernel if secure boot is enabled. To make DKMS works, you could do one of following method:

Method 1 - Disable Secure Boot from BIOS

  1. Enter BIOS setup
  2. Disable secure boot
  3. Save configuration
  4. Reboot the system

Method 2 - Purge 3.19.0-65 kernel before long term solution fix from Kernel is released

  1. sudo apt-get purge linux-image-3.19.0-65-generic
  2. Reboot the system

Method 3 - Select 3.19.0-64.72 kernel to boot up system from GRUB before long term solution fix from Kernel is released

  1. Press Esc after Dell logo show off to enter GRUB
  2. Select 3.19.0-64.72 kernel to boot up system

Method 4 - Disable Secure Boot in shim-signed

  1. Open a terminal by Ctrl + Alt + T, execute sudo update-secureboot-policy and then select Yes update-secureboot-policy.png

  2. Enter a temporary password between 8 to 16 digits. (For example, 12345678, we will use this password later.)Enter_a_temporary_password.png

  3. Enter the same password again to confirmconfirm_password.png

  4. Reboot the system and press any key when you see the blue screen (MOK management) press_any_key.png

  5. Select Change Secure Boot state change_secureboot_state.png

  6. Press the corresponding password character and press Enter. Repeat this step several times to confirm previous temporary password like 12345678 in step 2&3. For exmaple, 2 for this screen enter_password.png

  7. Select Yes to disable Secure Boot in shim-signed select_yes.png

  8. Press Enter key to finish the whole procedure press_enter_key.png

  9. We can still enable Secure Boot in shim-signed again. Just execute sudo update-secureboot-policy --enable and then follow the similar steps above

UEFI/SecureBoot/DKMS (last edited 2018-06-26 19:53:49 by cyphermox)