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Published 20 hours ago • verified publisher icon linux-surface

Some GRUB versions do not work

Open qzed opened this issue 3 years ago • 2 comments
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Some GRUB versions, notably the ones provided by Arch Linux ARM and Fedora, do not seem to work well with the Surface Pro X and prevent the kernel from booting. The device seems to lock up even before the kernel exits the EFI stub. This may be an issue with kernel loader changes introduced by Red Hat, as plain upstream GRUB sources seem to behave well. We should find out what exactly causes this issue.

Known working GRUB images can be found at https://github.com/linux-surface/grub-image-aarch64.

qzed avatar Jun 10 '22 00:06 qzed

See https://github.com/linux-surface/grub/issues/1 for more information.

qzed avatar Jun 28 '22 17:06 qzed

It looks like the Pro X is one of the few devices that actually care about different memory types and the redhat patches allocate data-type memory for the kernel. When we try to execute that on the Pro X, it stalls. Allocating code-type memory instead fixes this: https://github.com/linux-surface/grub/commit/55b95a388414a3d850e24fd2ae8fac100ffd9319. I've submitted a PR with this commit to rhboot/grub2: https://github.com/rhboot/grub2/pull/101.

qzed avatar Jun 29 '22 00:06 qzed