Created a service that invokes a "systemctl daemon-reload". Goal is for
a reload to occur early in the boot process, before other user made
services are invoked. During additional testing, sometimes it is
correct and other times it is out of order (incorrect - See steps C).
It may work for 5 or 6 times after each reboot/shutdown, then randomly
become incorrect. How can I make this more consistent? Already tried
various keyword combinations (wants,before,after, etc) within the unit
file, all without luck.
Thought about something like "After=var.mount, etc" as well, but that is
inflexible because I will not know filesystems users may create.
A) Unit file
[Unit]
Description=Systemctl-Reload
Wants=local-fs.target
DefaultDependencies=yes
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/systemctl daemon-reload
[Install]
WantedBy=local-fs.target
B) Correct order: ** Reached target Local File Systems is after all
mounting is done. Sometimes it works.
eg:
journalctl --boot=0 | grep -E 'Mounting |Mounted |Local File'
Oct 09 11:21:39 rocky8-linux-build systemd[1]: Mounting Kernel
Configuration File System...
Oct 09 11:21:39 rocky8-linux-build systemd[1]: Mounted Kernel
Configuration File System.
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Reached target Local File
Systems (Pre).
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Reached target Local File
Systems.
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Mounting /sysroot...
Oct 09 11:21:40 rocky8-linux-build kernel: XFS (dm-0): Mounting V5
Filesystem
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Mounted /sysroot.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounting /sysroot/usr...
Oct 09 11:21:41 rocky8-linux-build kernel: XFS (dm-2): Mounting V5
Filesystem
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted /sysroot/usr.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Stopped target Local File
Systems.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Stopped target Local File
Systems (Pre).
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted POSIX Message
Queue File System.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted Kernel Debug File
System.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted Huge Pages File
System.
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting FUSE Control
File System...
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounted FUSE Control File
System.
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Reached target Local File
Systems (Pre).
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /boot...
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /tmp...
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /var...
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (vda2): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (dm-3): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /home...
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (dm-4): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (dm-5): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounted /tmp.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /boot.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounting /boot/efi...
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /boot/efi.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /home.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /var.
*** Oct 09 11:21:43 rocky8-linux-build systemd[1]: Reached target Local
File Systems. <<--- This is correct
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounting RPC Pipe File
System...
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted RPC Pipe File System.
C) Other times a mount is randomly out of order:
eg:
journalctl --boot=0 | grep -E 'Mounting |Mounted |Local File'
Oct 09 11:21:39 rocky8-linux-build systemd[1]: Mounting Kernel
Configuration File System...
Oct 09 11:21:39 rocky8-linux-build systemd[1]: Mounted Kernel
Configuration File System.
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Reached target Local File
Systems (Pre).
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Reached target Local File
Systems.
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Mounting /sysroot...
Oct 09 11:21:40 rocky8-linux-build kernel: XFS (dm-0): Mounting V5
Filesystem
Oct 09 11:21:40 rocky8-linux-build systemd[1]: Mounted /sysroot.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounting /sysroot/usr...
Oct 09 11:21:41 rocky8-linux-build kernel: XFS (dm-2): Mounting V5
Filesystem
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted /sysroot/usr.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Stopped target Local File
Systems.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Stopped target Local File
Systems (Pre).
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted POSIX Message
Queue File System.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted Kernel Debug File
System.
Oct 09 11:21:41 rocky8-linux-build systemd[1]: Mounted Huge Pages File
System.
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting FUSE Control
File System...
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounted FUSE Control File
System.
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Reached target Local File
Systems (Pre).
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /boot...
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /tmp...
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /var...
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (vda2): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (dm-3): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounting /home...
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (dm-4): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build kernel: XFS (dm-5): Mounting V5
Filesystem
Oct 09 11:21:42 rocky8-linux-build systemd[1]: Mounted /tmp.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /boot.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounting /boot/efi...
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /boot/efi.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /home.
** Oct 09 11:21:43 rocky8-linux-build systemd[1]: Reached target Local
File Systems. <<-- This is wrong, should be below /var mount.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted /var.
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounting RPC Pipe File
System...
Oct 09 11:21:43 rocky8-linux-build systemd[1]: Mounted RPC Pipe File System.
