[kwlug-disc] Server reboot time ...

[Khalid Baheyeldin]

I am setting up a new Dell server for a client, so we can move the site to
it.

But I am bothered by the time it takes from shutdown to boot.
It will not be a frequent event, but when it is happening, the site is down.
So minimizing it is important ...

Here is the logs from journalctl:

Oct 06 16:27:48 foo systemd[1]: Reached target shutdown.target - System
Shutdown.
Oct 06 16:27:48 foo systemd[1]: Reached target final.target - Late Shutdown
Services.
Oct 06 16:27:48 foo systemd[1]: systemd-reboot.service: Deactivated
successfully.
Oct 06 16:27:48 foo systemd[1]: Finished systemd-reboot.service - System
Reboot.
Oct 06 16:27:48 foo systemd[1]: Reached target reboot.target - System
Reboot.
Oct 06 16:27:48 foo systemd[1]: Shutting down.
Oct 06 16:27:48 foo systemd-shutdown[1]: Syncing filesystems and block
devices.
Oct 06 16:27:48 foo systemd-shutdown[1]: Sending SIGTERM to remaining
processes...
Oct 06 16:27:48 foo systemd-journald[1694]: Journal stopped

-- Boot 67974696049a495c86f01b56d2a150dd --

Oct 06 16:32:09 foo kernel: Linux version 6.8.0-85-generic (...)
(x86_64-linux-gnu-gcc-13 ...
Oct 06 16:32:09 foo kernel: Command line:
BOOT_IMAGE=/vmlinuz-6.8.0-85-generic root=UUID=foo ro
Oct 06 16:32:09 foo kernel: KERNEL supported cpus:
Oct 06 16:32:09 foo kernel:   Intel GenuineIntel
Oct 06 16:32:09 foo kernel:   AMD AuthenticAMD
...
Oct 06 16:32:09 foo kernel: BIOS-provided physical RAM map:

You can see it takes a full 4 minutes and 20 seconds to do ... nothing?

Any ideas why it takes that long, or where to look?

-- 
Khalid M. Baheyeldin
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