Ubuntu
shim package

Failure to install Ubuntu 21.04 upgrade on computers with low UEFI models (circa 2012

Bug #1926961 reported by yazdanparast on 2021-05-03

This bug report is a duplicate of: Bug #1925010: shim-signed 15.4 does not boot on EFI 1.10 systems. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	shim (Ubuntu)	New	Undecided	Unassigned

Bug Description

Hello. Ubuntu 21.04 Upgrade to computers with low UEFI models (circa 2012) will result in boot failure.

Revision history for this message

Seth Arnold (seth-arnold) wrote on 2021-05-03:

This is probably https://lists.ubuntu.com/archives/ubuntu-devel/2021-April/041448.html

Thanks

Revision history for this message

Marc Deslauriers (mdeslaur) wrote on 2021-05-07: Bug is not a security issue

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

information type:

Private Security → Public

Revision history for this message

Steve Langasek (vorlon) wrote on 2021-05-07:

without details on what machine you're installing on, it's impossible to know if this is LP: #1925010 or a different bug. However, we did specifically block release upgrades from 20.10 to 21.04 in the release upgrader because there were known issues with 21.04 on older machines. Marking this as a duplicate of 1925010.