openstack/ironic
Code Issues Proposed changes

Use centos grub artifacts with centos ramdisk for vmedia

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It appears we are getting an opcode error when attempting to boot
Centos 9-stream utilizing the EFI artifacts from Ubuntu.

Technically this should work, however further aftifacts in the boot
chain may be signed with other key credentials that Ubuntu's
grub does not know about, because the chain of trust is
MSFT -> Vendor shim (slow change rate) -> Vendor GRUB -> Kernel

Where vendor differences should never work, is if Secure Boot
is enforcing.

Exception on launch:
 X64 Exception Type - 06(#UD - Invalid Opcode)  CPU Apic ID - 00000000 !!!!

A similar Debian bug is open for a very similar issue:

https://groups.google.com/g/linux.debian.bugs.dist/c/BOiLLeROrmo

However, no additional comments or information have been in follow
up to that reported issue. So in the mean time, we're going to try
and do what those smarter than I recommend, use the vendor's
binaries for their distribution.

There is one further, potentially far more depressing possibility,
that centos9's kernel doesn't support the type of hardware
we're getting. This is suggested by the precise opcode error, UD,
https://xem.github.io/minix86/manual/intel-x86-and-64-manual-vol3/o_fe12b1e2a880e0ce-212.html
But again, easiest possibility first.

Change-Id: Id9bd30bc3c2f1076555317e4a3f277725fa7c1f4
This commit is contained in:
Julia Kreger 2023-01-03 11:06:27 -08:00
parent 6b84fbf8f2
commit 1d07be8237
2 changed files with 14 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
devstack/lib/ironic
View File

@ -2943,8 +2943,16 @@ function upload_baremetal_ironic_efiboot {
sudo mkdir -p $efiboot_mount/efi/boot sudo mkdir -p $efiboot_mount/efi/boot
if [[ "$IRONIC_GRUB2_SHIM_FILE" =~ "http".* ]]; then
sudo wget "$IRONIC_GRUB2_SHIM_FILE" -O $efiboot_mount/efi/boot/bootx64.efi
else
sudo cp "$IRONIC_GRUB2_SHIM_FILE" $efiboot_mount/efi/boot/bootx64.efi sudo cp "$IRONIC_GRUB2_SHIM_FILE" $efiboot_mount/efi/boot/bootx64.efi
fi
if [[ "$IRONIC_GRUB2_FILE" =~ "http".* ]]; then
sudo wget "$IRONIC_GRUB2_FILE" -O $efiboot_mount/efi/boot/grubx64.efi
else
sudo cp "$IRONIC_GRUB2_FILE" $efiboot_mount/efi/boot/grubx64.efi sudo cp "$IRONIC_GRUB2_FILE" $efiboot_mount/efi/boot/grubx64.efi
fi
sudo umount $efiboot_mount sudo umount $efiboot_mount
@ -2981,7 +2989,7 @@ function upload_baremetal_ironic_efiboot {
# NOTE(dtantsur): this is likely incorrect # NOTE(dtantsur): this is likely incorrect
efi_grub_path=EFI/BOOT/grub.cfg efi_grub_path=EFI/BOOT/grub.cfg
fi fi
iniset $IRONIC_CONF_FILE DEFAULT grub_config_path $efi_grub_path iniset $IRONIC_CONF_FILE DEFAULT grub_config_path ${IRONIC_GRUB2_CONFIG_PATH:-$efi_grub_path}
} }
# build deploy kernel+ramdisk, then upload them to glance # build deploy kernel+ramdisk, then upload them to glance

3
zuul.d/ironic-jobs.yaml
View File

@ -299,6 +299,9 @@
# result and makes this job VERY sensitive to heavy disk IO of the # result and makes this job VERY sensitive to heavy disk IO of the
# underlying hypervisor/cloud. # underlying hypervisor/cloud.
IRONIC_CALLBACK_TIMEOUT: 800 IRONIC_CALLBACK_TIMEOUT: 800
IRONIC_GRUB2_SHIM_FILE: https://mirror.iad3.inmotion.opendev.org/centos-stream/9-stream/BaseOS/x86_64/os/EFI/BOOT/BOOTX64.EFI
IRONIC_GRUB2_FILE: https://mirror.iad3.inmotion.opendev.org/centos-stream/9-stream/BaseOS/x86_64/os/EFI/BOOT/grubx64.efi
IRONIC_GRUB2_CONFIG_PATH: EFI/BOOT/grub.cfg
devstack_services: devstack_services:
s-account: True s-account: True
s-container: True s-container: True