Hi Mathieu, Thanks for the hint! After I changed the Pin-Priority from 400 to 600 in the below file, I successfully installed the *3.22 version:
root@decui-g2-1604:~# cat /etc/apt/preferences.d/proposed-updates Package: * Pin: release a=xenial-proposed Pin-Priority: 600 ... root@decui-g2-1604:~# apt policy grub2-common grub2-common: Installed: 2.02~beta2-36ubuntu3.22 Candidate: 2.02~beta2-36ubuntu3.22 Version table: *** 2.02~beta2-36ubuntu3.22 600 600 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages 100 /var/lib/dpkg/status 2.02~beta2-36ubuntu3.21 500 500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 2.02~beta2-36ubuntu3 500 500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages And I can confirm the issue is fixed for "16.04.6 LTS (Xenial Xerus)"! Now in the VM running on Hyper-V, I get the below as expected (previously I can not see the line with the *3.21 version of grub2): root@decui-g2-1604:~# dmesg | grep "efifb: framebuffer" [ 0.472000] efifb: framebuffer at 0xf8000000, mapped to 0xffffc90001c00000, using 3072k, total 3072k Thank you all for the quick response! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826453 Title: Grub2 Booting in blind mode due to "invalid video mode specification `text'" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1826453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs