UEFI Boot Entry Not Installed on Xubuntu and Lubuntu 13.04
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
lubuntu-meta (Ubuntu) |
Expired
|
Undecided
|
Unassigned | ||
xubuntu-meta (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
I've tried Ubuntu, Kubuntu (a while back), Xubuntu, and Lubuntu 13.04 installers on my two UEFI-compatible computers (one has an ASRock 970 Extreme3 motherboard, the other is an Acer Aspire V3-551G-X419).
If my memory serves me right, Ubuntu and Kubuntu (I could be wrong about Kubuntu, but I know Ubuntu for sure) manage to install and leave a bootable entry in my UEFI boot list on both computers, no problem.
Xubuntu and Lubuntu (13.04) however do not leave a boot entry. The installers on both complete without error. Xubuntu 12.04.2 and daily Saucy images leave a boot entry, so this only seems to be related to 13.04. Both computers have Secure Boot disabled also.
A solution I found was to just run boot-repair before leaving the LiveCD after install completes (or boot back into LiveCD), and just reinstall GRUB with the Secure Boot option. The strange part is, I "have" to have Secure Boot checked (even though it's disabled on both computers), or else boot-repair doesn't create the UEFI boot entry at all.
If I understand right, Ubuntu uses a shim thing to do UEFI boots, and this works regardless if Secure Boot is enabled or not. If Secure Boot is disabled, you may see a quick glance of a message stating so before it goes to GRUB. I can confirm that I do see this message when starting up the installer discs for both Lubuntu and Xubuntu 13.04 on both computers.
My guess is is that the UEFI installer can do one of two things. If a non-Secure Boot boot was used, then it would simply place the UEFI files needed to boot in the right locations, and not add a boot entry. This works fine for computers that can look for EFI files (my laptop can do this; desktop can't). If a Secure Boot boot was used, then it would add the files for UEFI with the Shim, and add the EFI boot entry.
So in-short, Lubuntu and Xubuntu 13.04's UEFI installers do not create an EFI boot entry, leading to an unbootable install, at least in my case. Maybe others can leave some feedback?
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