We are installing OCP 4.16 rc4 using Agent Based Installer.

Boot from agent.iso by modifying our bootloader, based on https://issues.redhat.com/browse/OCPBUGS-33999 discussion, we copy all the kernel args from agent.iso's grub.cfg, for example:

(loop)/images/pxeboot/vmlinuz rw coreos.liveiso=rhcos-416.94.202405291527-0 ignition.firstboot ignition.platform.id=metal fips=1


But we found the "coreos.liveiso=rhcos-416.94.202405291527-0" caused the boot process to get stuck and entering emergency mode, shows:
Entering emergency mode. Exit the shell to continue.
Type "journalctl" to view system logs.


And by checking the logs:
localhost systemd[1]: Ignition OSTree: Autosave XFS Rootfs Partition was skipped because of an unmet condition check (ConditionPathExists=/run/ignition-ostree-growfs.stamp).
localhost systemd[1]: Ignition OSTree: Restore Partitions was skipped because of an unmet condition check (ConditionPathIsDirectory=/run/ignition-ostree-transposefs)
localhost systemd[1]: dev-disk-by\x2dlabel-rhcos\x2d416.94.202405291527\x2d0.device: Job dev-disk-by\x2dlabel-rhcos\x2d416.94.202405291527\x2d0.device/start timed out.
localhost systemd[1]: Timed out waiting for device /dev/disk/by-label/rhcos-416.94.202405291527-0.

 4.16.0-rc.4

  1/1

1.Run "openshift-install-fips agent create image --dir manifest" generate agent.x86_64.iso
2.Mount and boot from agent.x86_64.iso by modifying the bootloader and added all the kernel args from iso's grub.cfg
3.

Failed at booting from agent iso