Public bug reported:

I have several older laptops (~12 years old) that I’d like to install
Linux. The laptops don’t have support for EFI/UEFI. They only have
support for BIOS or Legacy mode. The laptops have a 64 bit CPU.

I attempted to install Ubuntu Budgie 21.10 and after successfully
completing POST, the laptops stall and display GRUB on the screen. It
doesn’t progress any further.

I’ve ruled out the following:

-USB flash drive or USB port failures by booting with different USB flash 
drives and USB ports.
-ISO corruption as the hashes match.
-Problems with the laptops as they successfully boot Ubuntu 20.04.4.
-LiveUSB issues as it makes no difference if I use dd, cat, Startup Disk 
Creator, UnetBootin or balenaEtcher.

I’ve noticed that Ubuntu Budgie ships with GRUB 2.04 but Ubuntu uses an
ISOLinux bootloader. As the laptops fail to get past GRUB, my only guess
at this point in time is that GRUB 2.04 and later versions are
incompatible with certain BIOS models.

In further testing of Ubuntu Budgie 20.04.4, the devices boot. Ubuntu
version 22.04 like Ubuntu Budgie 21.10 results in the laptops not
getting past GRUB. As the images could not boot, I'm unable to raise the
bug report via the live USB session.

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  I have several older laptops (~12 years old) that I’d like to install
  Linux. The laptops don’t have support for EFI/UEFI. They only have
  support for BIOS or Legacy mode. The laptops have a 64 bit CPU.
  
  I attempted to install Ubuntu Budgie 21.10 and after successfully
  completing POST, the laptops stall and display GRUB on the screen. It
  doesn’t progress any further.
  
  I’ve ruled out the following:
  
  -USB flash drive or USB port failures by booting with different USB flash 
drives and USB ports.
  -ISO corruption as the hashes match.
  -Problems with the laptops as they successfully boot Ubuntu 20.04.4.
  -LiveUSB issues as it makes no difference if I use dd, cat, Startup Disk 
Creator, UnetBootin or balenaEtcher.
- I’ve noticed that Ubuntu Budgie ships with GRUB 2.04 but Ubuntu uses an 
ISOLinux bootloader.
  
- As the laptops fail to get past GRUB, my only guess at this point in
- time is that GRUB 2.04 and later versions are incompatible with certain
- BIOS models.
+ I’ve noticed that Ubuntu Budgie ships with GRUB 2.04 but Ubuntu uses an
+ ISOLinux bootloader. As the laptops fail to get past GRUB, my only guess
+ at this point in time is that GRUB 2.04 and later versions are
+ incompatible with certain BIOS models.
  
  In further testing of Ubuntu Budgie 20.04.4, the devices boot. Ubuntu
  version 22.04 like Ubuntu Budgie 21.10 results in the laptops not
  getting past GRUB. As the images could not boot, I'm unable to raise the
  bug report via the live USB session.

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https://bugs.launchpad.net/bugs/1968147

Title:
  Unable to boot Ubuntu and Ubuntu flavors on older laptops

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