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squeegily
n00b
Joined: 17 Apr 2016
Posts: 57
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 Posted: Tue Feb 28, 2017 2:48 am Post subject: GRUB doesn't load intel-ucode.img |
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Right now, the in-kernel "firmware-style" CPU microcode loading (the only current method even approximating cleanliness) doesn't work on i686.
The current/only recommended way to load "early-initrd" microcode is incredibly hacky and unclean (breaks root=UUID, breaks on updates), however, the people over at Arch have already discussed this issue and come up with a reasonably clean fix.
This patch allows one to simply place intel-ucode.img in /boot and grub will detect it (in addition to, it seems, any existing initramfs.)
While the patch still needs a small bit of work (doesn't support AMD microcode, /boot is hardcoded), it seems that either it, or something very like it, would make a vital addition to Gentoo's grub for x86. |
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josephg
l33t
Joined: 10 Jan 2016
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Location: usually offline
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Roman_Gruber
Advocate
Joined: 03 Oct 2006
Posts: 3846
Location: Austro Bavaria
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| Posted: Thu Mar 30, 2017 11:49 am Post subject: |
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When you write your own grub sections, which I recommend:
| Code: | initrd /early_ucode.cpio /initramfs-genkernel-x86_64-4.2.3-gentoo
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first file microcode from intel. second file my initramfs_which_was_a_bit_adapted
I do not see the issue now!
I just update kernel file + name, title of my boot section!
off topic: the grub scripts are already too dangerius to cause dataloss, e.g. linux mint for example. I never understood why guys would prefer a script, instead of copy a file, and just changing a few parts of a bootloader.
| Code: | ASUS-G75VW roman # qlist -Iv grub
ASUS-G75VW roman #
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+ Benefit of no disc waste of installed grub package in your world file. It's enough to have it just once installed on your disc.
edit: I think there was also a way to implement / build in an initramfs in the kernel. This may be more easier for you in this case. |
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josephg
l33t
Joined: 10 Jan 2016
Posts: 783
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| Posted: Thu Mar 30, 2017 3:16 pm Post subject: |
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| Roman_Gruber wrote: | When you write your own grub sections, which I recommend:
| Code: | initrd /early_ucode.cpio /initramfs-genkernel-x86_64-4.2.3-gentoo
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first file microcode from intel. second file my initramfs_which_was_a_bit_adapted |
that's exactly what i do. but i have my own custom script/sections instead of using the provided ones.
| Roman_Gruber wrote: | | off topic: the grub scripts are already too dangerius to cause dataloss, e.g. linux mint for example. I never understood why guys would prefer a script, instead of copy a file, and just changing a few parts of a bootloader. |
grub2 is too much bloatware imho pandering to dumbing down (automating?) everything  but i'm stuck with it, as i use btrfs subvolumes and don't have any other choice.
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"Growth for the sake of growth is the ideology of the cancer cell." Edward Abbey |
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Roman_Gruber
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Joined: 03 Oct 2006
Posts: 3846
Location: Austro Bavaria
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| Posted: Thu Mar 30, 2017 10:19 pm Post subject: |
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| josephg wrote: |
grub2 is too much bloatware imho pandering to dumbing down (automating?) everything but i'm stuck with it, as i use btrfs subvolumes and don't have any other choice. |
Just write your own boot section for grub2. grub2 can be small and beautiful as grub 1 was. |
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