Public bug reported:
What I did:
Downloaded the newest 20.04.1 USB image. (kernel 5.8 is said to be stable with
T14s AMD)
Boot the live USB on an Thinkpad T14s with Ryzen 4750U.
Install Ubuntu on 20.04.1 and wipe the entire disk thus replace Windows 10.
What happened:
Everything installs seamlessy.
(1) installs the EFI "boot" on the first partition
(2) installs the main ext4 "/" on the second partition
But the EFI "boot" image contains a faulty grub bootloader.
There are no ubuntu kernels to boot up it is just an empty grub2.
Problem:
T14s AMD does not allow traditional MBR legacy boot, thus I had to install
Ubuntu by means of UEFI boot. 20.04.1 installer fails to set up it properly.
Solution:
The original 20.04.1 USB installer handles the EFI partition correctly.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1914946
Title:
Clean "Focal" 20.04.2 install fails on Lenovo Thinkpad T14s - grub
fails - 20.04.1 works
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