azure: ensure early boot messages are directed to the serial console

In the event that there's an issue with early boot, setting
earlyprintk=ttyS0 ensures that the messages are routed to the serial
console so it can be debugged.

This particular option is documented as required in the Azure VM
certification FAQ[0].

[0] https://learn.microsoft.com/en-us/partner-center/marketplace/azure-vm-certification-faq#linux-test-cases
This commit is contained in:
Jeremy Cline 2024-02-22 16:11:15 -05:00 committed by ngompa
parent 78ea0154a4
commit d9584ccd70

View File

@ -29,7 +29,7 @@
</profile>
</profiles>
<preferences profiles="Cloud-Base-Azure">
<type image="oem" filesystem="btrfs" kernelcmdline="no_timer_check net.ifnames=0 console=tty1 console=ttyS0,115200n8" devicepersistency="by-uuid" formatoptions="force_size" format="vhd-fixed" bootpartition="true" bootpartsize="1000" bootfilesystem="ext4" efipartsize="100" firmware="uefi" fsmountoptions="compress=zstd:1" btrfs_root_is_subvolume="true" btrfs_set_default_volume="false" rootfs_label="fedora">
<type image="oem" filesystem="btrfs" kernelcmdline="no_timer_check net.ifnames=0 console=tty1 console=ttyS0,115200n8 earlyprintk=ttyS0" devicepersistency="by-uuid" formatoptions="force_size" format="vhd-fixed" bootpartition="true" bootpartsize="1000" bootfilesystem="ext4" efipartsize="100" firmware="uefi" fsmountoptions="compress=zstd:1" btrfs_root_is_subvolume="true" btrfs_set_default_volume="false" rootfs_label="fedora">
<bootloader name="grub2" console="serial" timeout="0"/>
<systemdisk>
<volume name="@root=root"/>