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paddymac

Add support to boot-update for multiple initrd images

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I've been trying to get early boot Intel microcode updating working on my Funtoo install. I have verified with microcode-ctl that I can update my CPU's microcode manually from the command line. However, after following the instructions at https://wiki.gentoo.org/wiki/Intel_microcodeI have been unable to get it working at boot.

 

Here's an entry from my /etc/boot.conf

 

 

"Funtoo - Gentoo 4.8.6 + CK/MuQSS 0.135 + UKSM" { 
       kernel vmlinuz-4.8.6-gentoo-ck6
       initrd /lib/firmware/microcode.cpio initramfs-genkernel-x86-4.8.6-gentoo-ck6
       params += real_root=auto rootfstype=auto
       params += mtrr_reg_cleanup=6
}

 

and the corresponding section of /boot/grub/grub.cfg

 

menuentry "Funtoo - Gentoo 4.8.6 + CK/MuQSS 0.135 + UKSM - vmlinuz-4.8.6-gentoo-ck6" { 
 insmod part_msdos
 insmod btrfs
 set root=(hostdisk//dev/sda,msdos1)
 search --no-floppy --fs-uuid --set e050f0b2-8494-4e53-a19f-6c57f036cc41
 linux /boot/vmlinuz-4.8.6-gentoo-ck6 rootfstype=auto mtrr_reg_cleanup=6 real_root=/dev/sda1 rootfstype=btrfs
 initrd /boot/initramfs-genkernel-x86-4.8.6-gentoo-ck6
 set gfxpayload=keep
}

 

Notice that the "/lib/firmware/microcode.cpio" was removed from the initrd line when grub.cfg was processed by the boot-update utility.

 

boot-update needs to have support for this added, or some other method for providing the microcode to the kernel at boot should be proposed.

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