Thu 17 Dec 2015 11:18:26 PM UTC, original submission:
I already submitted this to the Fedora bugzilla, since it happens wioth the F23 grub, which seems to be based on some 2.02 prerelease.
It may be Fedora-specific, but since I tend to try making upstream reports too, here goes..
When I installed Fedora 23 on my new desktop machine everything worked fine. I then built my own kernel (of course), and tried to boot it, but I never got into the kernel, because grub2 failed with:
double free at 0x616f5760
Aborted. Press any key to edit.
which is not very helpful, and is obviously a Grub bug.
However, booting the Fedora kernel worked fine, so I screatched my head for a while, and then realized that I had never touched the BIOS secure boot settings - and I don't sign my kernels with some silly vendor signature.
And sure enough, when I disable secure boot, Grub2 works fine.
So clearly Grub2 does not handle secure boot key failures very gracefully. I don't expect you to actually boot the kernel, but I would expect a useful error message, rather than a bug about double free's. Something like
Not able to boot unsigned kernel in secure mode.
Aborted. Press any key to edit.
..and hey, if this is all just the Fedora version of Grub2, you can ignore this bug report, of course.
|