Ask Ubuntu Asked by MH Shuvo on October 31, 2021
After installing Ubuntu I shut down my laptop. When I restarted it I got this error message:
Malformed security header
Failed to read header: Invalid Parameter
Failed to load images: Invalid Parameter
start_img() returned Invalid Parameter
Convert Ubuntu from UEFI mode into Legacy mode.
Use this procedure only to convert an UEFI mode Ubuntu installation to boot in BIOS/CSM/legacy mode. Such a conversion may be necessary if some hardware doesn't work correctly under UEFI mode. (Graphics cards are a common source of problems.) Converting to boot in BIOS/CSM/legacy mode while Windows boots in UEFI mode can make the boot process more awkward -- you'll need to use the computer's built-in boot manager to switch between OSs, and some computer's have such poor boot managers that this may be impossible.
If Ubuntu is installed on a GPT disk (you can check it via the sudo parted -l
command), use GParted partition editor to create a BIOS-Boot partition (1MB, unformatted filesystem, bios_grub flag) at the start of its disk.
Start Boot-Repair, and select Advanced options -> GRUB location tab.
Uncheck the Separate /boot/efi partition option
Click the Apply button in the lower right corner.
Set up your BIOS so that it boots the HDD in Legacy mode. Generally this setting is located in the Boot tab → Boot order section of the BIOS.
Source: revised from: UEFI - Community Help Wiki
Answered by karel on October 31, 2021
Get help from others!
Recent Answers
Recent Questions
© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP