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#1 2022-06-23 00:06:37

robotoid
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Registered: 2019-07-18
Posts: 12

[Solved] reboot vs poweroff at the end of base installation

Hi

The installation guide, as everyone knows, instructs users to reboot after exiting chroot, but I have long wondered why this is needed. The first thing I do after rebooting is powering the machine off in order to remove the installation medium, so why not just issue poweroff right away? Is there any reason for booting the installation medium again?

Last edited by robotoid (2022-06-23 06:38:57)

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#2 2022-06-23 00:57:24

jasonwryan
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Registered: 2009-05-09
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Re: [Solved] reboot vs poweroff at the end of base installation

It's just an idiomatic way to say the same thing. Poweroff has the additional connotation that you are done, so "reboot" makes more sense as the installation continues in the Arch install.


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#3 2022-06-23 01:13:36

Trilby
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Registered: 2011-11-29
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Re: [Solved] reboot vs poweroff at the end of base installation

robotoid wrote:

The first thing I do after rebooting is powering the machine off in order to remove the installation medium... Is there any reason for booting the installation medium again?

No there isn't.  You are not meant to reboot into the installation medium again, just reboot into your newly installed system.

wiki (emphasis added) wrote:

Finally, restart the machine by typing reboot: any partitions still mounted will be automatically unmounted by systemd. Remember to remove the installation medium and ...


"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman

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#4 2022-06-23 02:37:18

robotoid
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Registered: 2019-07-18
Posts: 12

Re: [Solved] reboot vs poweroff at the end of base installation

Thanks for the clarification.

wiki (emphasis added) wrote:

Finally, restart the machine by typing reboot: any partitions still mounted will be automatically unmounted by systemd. Remember to remove the installation medium and ...

The words really speak differently though. It would be easier to actually write what is meant. It is very clear from the following section that the installation continues.
Oh well.

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#5 2022-06-23 03:27:27

jasonwryan
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Re: [Solved] reboot vs poweroff at the end of base installation

It's the same for people that dual boot. You don't say "poweroff and boot into Slackware." You say, "reboot into Slack".


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#6 2022-06-23 04:21:01

Awebb
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Registered: 2010-05-06
Posts: 5,955

Re: [Solved] reboot vs poweroff at the end of base installation

robotoid wrote:

Thanks for the clarification.

wiki (emphasis added) wrote:

Finally, restart the machine by typing reboot: any partitions still mounted will be automatically unmounted by systemd. Remember to remove the installation medium and ...

The words really speak differently though. It would be easier to actually write what is meant. It is very clear from the following section that the installation continues.
Oh well.

Among other things, I write SOPs, IFUs and manuals for a living. Specifying such things leads to FUD among people who do not follow instructions robotically. Just because you remove the medium during a reboot doesn't mean other people do or even should have to. Your computer shouldn't even boot into USB devices without being explicitly told. In addition, the IFU telling you to shut down the machine would require the IFU to tell you to turn it on again, but this isn't a good idea, because the installation guide does neither cover your hardware (your mainboard manual + whatever custom wiring you have), nor your BIOS/UEFI config screen. Arch Linux requires you to be at least mildly competent and configure anything between powering on your machine accordingly. If you have to meddle with your boot order between steps, that's not only your prerogative, but completely under your own orchestration.

Everything is there. Reboot. Remove the installation medium. You even quoted the section...

Finally, restart the machine by typing reboot: any partitions still mounted will be automatically unmounted by systemd. Remember to remove the installation medium and then login into the new system with the root account.

You're not a shell. You can "read ahead" and parse instructions dynamically. You do not need to power down a modern computer to remove a USB drive.

Last edited by Awebb (2022-06-23 04:21:43)

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#7 2022-06-23 06:36:43

robotoid
Member
Registered: 2019-07-18
Posts: 12

Re: [Solved] reboot vs poweroff at the end of base installation

These would all be true if the sentence just read "restart the machine..." or "reboot into the new system..." in a suggestive form. But "by typing reboot" makes it sound like an explicit instruction rather than a follow-up on how to restart (which may have been the intention).

Anyhow there is no technical problem here. Marked as solved.

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