[cloud-admin@compute-1 ~]$ cat /etc/rhoso-release 
Red Hat OpenStack Services on OpenShift release 18.0.0 Beta (Antelope)
[cloud-admin@compute-1 ~]$ cat /etc/default/grub 
GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,115200n8 no_timer_check "
GRUB_TIMEOUT=0
GRUB_ENABLE_BLSCFG=true
GRUB_DEFAULT=saved
GRUB_DEVICE=LABEL=img-rootfs
GRUB_DISABLE_LINUX_UUID=true
GRUB_TIMEOUT=5
GRUB_TIMEOUT_STYLE=hidden
GRUB_TERMINAL="serial console"
GRUB_GFXPAYLOAD_LINUX=auto
GRUB_CMDLINE_LINUX_DEFAULT=" console=ttyS0,115200 no_timer_check memtest=0 boot=LABEL=mkfs_boot"
GRUB_EDPM_KERNEL_ARGS=" default_hugepagesz=1GB hugepagesz=1G hugepages=64 iommu=pt intel_iommu=on tsx=off isolcpus=2-19,22-39 "
GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX:+$GRUB_CMDLINE_LINUX }${GRUB_EDPM_KERNEL_ARGS}"
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"
[cloud-admin@compute-1 ~]$ cat /proc/cmdline 
BOOT_IMAGE=(hd0,gpt3)/vmlinuz-5.14.0-427.22.1.el9_4.x86_64 root=LABEL=img-rootfs ro console=tty0 console=ttyS0,115200n8 no_timer_check default_hugepagesz=1GB hugepagesz=1G hugepages=64 iommu=pt intel_iommu=on tsx=off isolcpus=2-19,22-39 console=ttyS0,115200 no_timer_check memtest=0 boot=LABEL=mkfs_boot skew_tick=1 tsc=reliable rcupdate.rcu_normal_after_boot=1 nohz=on nohz_full=2-19,22-39 rcu_nocbs=2-19,22-39 tuned.non_isolcpus=00300003 intel_pstate=disable nosoftlockup
[root@compute-1 ~]# grubby --info ALL
index=0
kernel="/boot/vmlinuz-5.14.0-427.22.1.el9_4.x86_64"
args="ro console=tty0 console=ttyS0,115200n8 no_timer_check default_hugepagesz=1GB hugepagesz=1G hugepages=64 iommu=pt intel_iommu=on tsx=off isolcpus=2-19,22-39 console=ttyS0,115200 no_timer_check memtest=0 boot=LABEL=mkfs_boot $tuned_params"
root="LABEL=img-rootfs"
initrd="/boot/initramfs-5.14.0-427.22.1.el9_4.x86_64.img $tuned_initrd"
title="Red Hat Enterprise Linux (5.14.0-427.22.1.el9_4.x86_64) 9.4 (Plow)"
id="d4eb5b1bb873475a87106df3e4968362-5.14.0-427.22.1.el9_4.x86_64"