On Sun, 10 Sep 2017, Philipp Kern wrote:
> On 09/10/2017 02:32 PM, Philipp Kern wrote:
> > 3) Add a patch to dracut.sh (/usr/bin/dracut) because intel-microcode
> > uses the .initramfs suffix for the ucode files where it requests early
> > loading. Given that hostonly is the default for dracut, only including
> > microcode for the machine it is currently running on, we need to add a
> > star to the pattern it looks for:
> >
> > Index: dracut-045+132/dracut.sh
> > ===================================================================
> > --- dracut-045+132.orig/dracut.sh
> > +++ dracut-045+132/dracut.sh
> > @@ -1649,7 +1649,7 @@ if [[ $early_microcode = yes ]]; then
> > _src="*"
> > dinfo "*** Constructing ${ucode_dest[$idx]} ****"
> > if [[ $hostonly ]]; then
> > - _src=$(get_ucode_file)
> > + _src="$(get_ucode_file)*"
> > [[ $_src ]] || break
> > [[ -r $_fwdir/$_fw/$_src ]] || break
> > fi
>
> Unfortunately I left out a line that I didn't copy over when preparing
> the patch. Updated version:
>
> Index: dracut-045+132/dracut.sh
> ===================================================================
> --- dracut-045+132.orig/dracut.sh
> +++ dracut-045+132/dracut.sh
> @@ -1649,9 +1649,8 @@ if [[ $early_microcode = yes ]]; then
> _src="*"
> dinfo "*** Constructing ${ucode_dest[$idx]} ****"
> if [[ $hostonly ]]; then
> - _src=$(get_ucode_file)
> + _src="$(get_ucode_file)*"
> [[ $_src ]] || break
> - [[ -r $_fwdir/$_fw/$_src ]] || break
> fi
>
> for i in $_fwdir/$_fw/$_src; do
>
Thanks. I wish dracut grew hooks/extensions support to be extensible /
enhanced by other packages...
In the long run, it might be a good idea to detect when
/usr/sbin/iucode_tool is available, and in that case use an alternate
code path to implement early-initramfs support and microcode selection
using iucode-tool and the same behavior config files as the
initramfs-tools extension modules provided by the intel-microcode
package.
--
Henrique Holschuh
