On Tue, Nov 12, 2024 at 12:13 PM Tony Rodriguez <unixpro1970@xxxxxxxxx> wrote:
Hoping I can accomplish the following via a simple UNIT modification or
service script?
Questions:
A) How can my service always runs "last" within local-fs-pre.target?
For Example:
Need my service to always run last within the local-fs-pre.target, even
if others add another services later within local-fs-pre.target. Still
want my service to always run last within this local-fs-pre.target.
Note: I will not know services others may later add within the
local-fs-pre.target
Systemd deliberately doesn't have a definite concept of "last" or "first". (More importantly, what happens if another service also wants to be "last"?)
It's specifically the purpose of targets themselves to be used as barriers. Instead of "After=*.mount" you would have "After=local-fs.target" because all those mounts are in local-fs.target.
B) How can I make my service run after all .mount(s) within
local-fs-pre.target, before local-fs.target, especially if I don't know
all the .mount(s)? The .mount files are located within
/var/run/systemd/generator/*
ls -l /var/run/systemd/generator/*.mount
-rw-r--r-- 1 root root 390 Nov 12 00:59
/var/run/systemd/generator/boot-efi.mount
-rw-r--r-- 1 root root 449 Nov 12 00:59
/var/run/systemd/generator/boot.mount
-rw-r--r-- 1 root root 428 Nov 12 00:59
/var/run/systemd/generator/home.mount
-rw-r--r-- 1 root root 239 Nov 12 00:59 /var/run/systemd/generator/-.mount
-rw-r--r-- 1 root root 424 Nov 12 00:59 /var/run/systemd/generator/tmp.mount
-rw-r--r-- 1 root root 241 Nov 12 00:59 /var/run/systemd/generator/usr.mount
-rw-r--r-- 1 root root 424 Nov 12 00:59 /var/run/systemd/generator/var.mount
-rw-r--r-- 1 root root 424 Nov 12 00:59
/var/run/systemd/generator/test.mount
Appears the UNIT section doesn't support a wildcard for .mount(s)
This doesn't work
#After=local-fs-pre.target *.mount
The following works, but have to hard code mounts. Would like to
dynamically populate mounts for "After=" within my service file.
After=local-fs-pre.target boot.mount boot-efi.mount -.mount usr.mount
var.mount tmp.mount home.mount
Before=local-fs.target
[Unit]
Description=mytest.service
DefaultDependencies=no
Wants=local-fs-pre.target
After=local-fs-pre.target boot.mount boot-efi.mount -.mount usr.mount
var.mount tmp.mount home.mount test.mount
Before=local-fs.target
How come your home.mount is in local-fs-pre? That is exactly the kind of mount that would be in local-fs. In fact, why do you have *any* mounts in local-fs-pre?
--
Mantas Mikulėnas
