Public bug reported:
[Impact]
On some UEFI firmware (debug versions of Tianocore, as well as builds from
AMI), GRUB will fail with Synchronous Aborts when starting the Linux kernel. It
is therefore not possible to install or run Ubuntu on these systems.
[Test Case]
Download the Ubuntu debian-installer netboot.tar.gz and boot and direct a
system to boot from the grubnet image within. (Currently only 15.10 and newer
have this tarball, though it should eventually appear in 14.04 as an SRU).
[Regression Risk]
The proposed patch touches only arm64 code, which limits the impact to just
arm64 systems. There are few ARM64/UEFI systems on the market/supported by
Ubuntu, so the risk is quite contained.
** Affects: grub2 (Ubuntu)
Importance: High
Status: Confirmed
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https://bugs.launchpad.net/bugs/1476882
Title:
arm64: synchronous abort booting linux
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