Xen PV and PVH guest use direct kernel boot and may use 'pygrub' tool to
parse guest's grub config. The tool is incompatible with BLS and thus
99-grub-mkconfig.install disables it. The problem is observed with HVM
guests which are 'normal' VMs and don't require pygrub compatibility. E.g.
legacy AWS instance types are of this kind. Disabling BLS for them is
undesired and unjustified. Luckily, kernel driver for Xen provides
'/sys/hypervisor/guest_type' interface telling us which type of guest are
we running in.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
blscfg: Lookup default_kernelopts variable as fallback for options
Related: rhbz#1765297
10_linux.in: fix early exit due error when reading petitboot version
Resolves: rhbz#1827397
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
The logic to parse the BLS configs to generate a set of menuentry commands
that's needed on ppc64le machines with bootloaders that don't have support
to parse BLS config directly, was implemented in a 10_linux_bls script.
But there's no need to have a separate script just for this and this logic
can be merged into the 10_linux script to avoid code duplication.
Also since the blscfg module will also now be used by ostree-based distros
there is a possible corner case in which a user set the blsdir variable to
a BLS directory path that is different than the default used by ostree.
So to avoid possible issues, only drop the marker file to specify that the
bootloader has support to parse BLS files if this variable hasn't been set.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
PV and PVH Xen DomU guests boot with pygrub that doesn't have BLS support.
Also Xen Dom0 use the menuentries from 20_linux_xen and not the ones from
10_linux. So BLS support needs to be disabled for both Xen Dom0 and DomU
and use a traditional grub.cfg file generated by the grub2-mkconfig tool.
Resolves: rhbz#1703700
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Steven Haigh <netwiz@crc.id.au>
The grubenv file is updated when grub-mkconfig is executed but on ppc64le
is used on each kernel install to re-generate the grub2.cfg file with the
updated entries. So in this case the grubenv file should not be updated.
Related: rhbz#1637875
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
- add 10_linux_bls grub.d snippet to generate menu entries from BLS files
Resolves: rhbz#1636013
- Only set kernelopts in grubenv if it wasn't set before
Resolves: rhbz#1636466
- kernel-install: Remove existing initramfs if it's older than the kernel (pjones)
Resolves: rhbz#1638405
- Update the saved entry correctly after a kernel install (pjones)
Resolves: rhbz#1638117
- blscfg: sort everything with rpm *package* comparison (pjones)
Related: rhbz#1638103
- blscfg: Make 10_linux_bls sort the same way as well
Related: rhbz#1638103
- don't set saved_entry on grub2-mkconfig
Resolves: rhbz#1636466
- Fix menu entry selection based on ID and title (pjones)
Resolves: rhbz#1640979
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
