grub2 broken after update
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
grub2 (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
Hello!
My environment:
Windows Server 2016 Standart
Hyper-V: Сontainer Gen 2: Security Check EFI - Off
Distribution OS: ubuntu-
Distribution OS: xubuntu-
My experiments have shown that these packages are the cause of the breakdown:
grub-efi-
grub-efi-amd64 amd64 2.02-2ubuntu8.15
grub-efi-amd64-bin amd64 2.02-2ubuntu8.15
grub2-common amd64 2.02-2ubuntu8.15
grub-common amd64 2.02-2ubuntu8.15
With package version 2.02-2ubuntu8.14, everything is fine.
grub-efi-
What the breakdown leads to:
After the reboot, a black bootloader screen appears.
GNU GRUB version 2.02
*Ubuntu
Advanced options for Ubuntu
System setup
Selecting any option returns back to the option selection.
Starting the kernel manually also returns to the selection of options.
A clean installation of the OS Ubuntu Server 18.04.3 amd64 during installation installs updates and leads to the same result.
A clean installation of the OS Xubuntu 18.04.3 works without an Internet connection, but after starting updates on the system itself, the result is the same.
Common bootloader recovery methods do not help.
Thank you for your bug report. Do you have any error when upgrading grub? /bugs.launchpad .net/ubuntu/ +source/ grub2/+ bug/1868138
One known regression from updates on bionic is
https:/