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
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</profile>
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</profiles>
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<preferences profiles="Cloud-Base-Azure">
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<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">
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<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">
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<bootloader name="grub2" console="serial" timeout="0"/>
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<systemdisk>
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<volume name="@root=root"/>
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