Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//lib/systemd/system/plymouth-switch-root.service

 [Unit]
Description=Plymouth switch root service
DefaultDependencies=no
ConditionPathExists=/etc/initrd-release
Before=initrd-switch-root.service

[Service]
Type=oneshot
ExecStart=-/bin/plymouth update-root-fs --new-root-dir=/sysroot
StandardInput=null
StandardOutput=null
StandardError=null