I'm trying to disable the spectre mitigations. I've set up
/etc/default/grub:
cat grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
#GRUB_CMDLINE_LINUX="resume=UUID=d695f875-5220-49ab-8b0d-4f58649cd8ad
nomodeset rhgb quiet"
GRUB_CMDLINE_LINUX="resume=UUID=d695f875-5220-49ab-8b0d-4f58649cd8ad
nomodeset pti=off spectre_v2=off l1tf=off nospec_store_bypass_disable
no_stf_barrier"
GRUB_DISABLE_RECOVERY="true"
but the command line is not used when I update the kernel. I tried again
with dnf reinstall kernel*.
menuentry 'Fedora (4.19.2-200.fc28.x86_64) 28 (Twenty Eight)' --class
fedora --class gnu-linux --class gnu --class os --unrestricted
$menuentry_id_option
'gnulinux-4.16.3-301.fc28.x86_64-advanced-6558c91f-7319-41a5-93cc-8c6d0737212b'
{
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod ext2
set root='hd0,gpt3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3
--hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3
f9fcdc3c-9cc3-4444-abc3-b8cbf1772e8e
else
search --no-floppy --fs-uuid --set=root
f9fcdc3c-9cc3-4444-abc3-b8cbf1772e8e
fi
linuxefi /vmlinuz-4.19.2-200.fc28.x86_64
root=UUID=6558c91f-7319-41a5-93cc-8c6d0737212b ro
resume=UUID=d695f875-5220-49ab-8b0d-4f58649cd8ad nomodeset LANG=en_US.UTF-8
initrdefi /initramfs-4.19.2-200.fc28.x86_64.img
And BTW, which kernel package contains the scriptlet that updates grub.cfg ?
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