Also, have a look at the "System Commands" section of th man-page to systemctl, https://man.archlinux.org/man/systemctl.1.en Am 03.08.23 um 12:29 schrieb Uwe Sauter:

Reading the related man-page [1] I suppose that it is up to the user initiating the reboot whether the system is soft or cold rebooted.

Quoting:

'Note that systemd-soft-reboot.service (and related units) should never be executed directly. Instead, trigger system shutdown with a command such as "systemctl soft-reboot".'

[1] https://man.archlinux.org/man/systemd-soft-reboot.service.8.en

Am 03.08.23 um 12:24 schrieb David C. Rankin:

...

Arch devs,

  I read that systemd 254 will enable a soft-reboot similar to how windows does fast-boot does it. (The Register: https://go.reg.cx/tdml/dfd67/64f3cc7f/8aaa3ef6/49jh)

  Mentioned in the article is this soft-reboot will prevent a full reboot - preventing kernel updates in that mode. But the article is silent, and indeed hints at the open question of if or how this will be disabled to allow kernel updates, dual-booting, etc..

  Personally, just like on windows, I want to permanently disable it. I don't know if that has been settled yet on Arch, but wanted to know whether we will have the ability to just disable the systemd soft-boot. I have a 12 second cold-start to full desktop -- I have no need for a soft-reboot that will cause issues with dual-booting and kernel updates.

  Anybody know if, and how we will be able to do it?

On 8/3/23 12:58, Paul Dann wrote:

On Thu, 3 Aug 2023 at 11:24, David C. Rankin mailto:drankinatty@gmail.com> wrote:

   I read that systemd 254 will enable a soft-reboot similar to how windows does fast-boot does it. (The Register: https://go.reg.cx/tdml/dfd67/64f3cc7f/8aaa3ef6/49jh https://go.reg.cx/tdml/dfd67/64f3cc7f/8aaa3ef6/49jh)

[...]

   Personally, just like on windows, I want to permanently disable it.

I can't find much information about this currently, but it seems unlikely to me that soft reboot will be the default behaviour. I expect there will be a new command for this. We already have "systemd reboot", "systemd poweroff", "systemd kexec". I imagine this will be "systemd soft-reboot".

But if anyone has some hard facts, I'd be interested.

Paul

Very easy to find: systemctl --help | grep boot reboot Shut down and reboot the system kexec Shut down and reboot the system with kexec soft-reboot Shut down and reboot userspace Currently supported by verbs: halt, poweroff, reboot, kexec, soft-reboot, suspend, hibernate, --no-wall Don't send wall message before halt/power-off/reboot next reboot --firmware-setup Tell the firmware to show the setup menu on next boot --boot-loader-menu=TIME Boot into boot loader menu on next boot --boot-loader-entry=NAME Boot into a specific boot loader entry on next boot --when=TIME Schedule halt/power-off/reboot/kexec action after -- Maderios

On Thu, 3 Aug 2023 at 12:38, Simon Perry wrote:

On 2023-08-03 08:24 PM, David C. Rankin wrote:

...

I have no need for a soft-reboot that will cause issues with dual-booting and kernel updates.

Anybody know if, and how we will be able to do it?

even if there is no such switch, you can always choose the power-down system and do a cold boot.