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Old 31st January 2023
Bsaidus Bsaidus is offline
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Default Installation of OpenBSD

Hello to all,
Is there any way to do installation of OpenBSD automatically without interruption.
I mean, after booting, some mechanism or script, starts and install OpenBSD without question ( no question for Keybord, if, ... ).
Thank you.
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Old 31st January 2023
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jggimi jggimi is offline
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Hello, and welcome!

Yes. Please see the autoinstall(8) man page.
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Old 1st February 2023
Bsaidus Bsaidus is offline
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Quote:
Originally Posted by jggimi View Post
Hello, and welcome!
Yes. Please see the autoinstall(8) man page.
Thank you, but can it do the automation directely after the boot??
ie: I put CDRom then after boot the installation will be done automatically without touching keyboard ??

Thanks.
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Old 1st February 2023
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Quote:
Originally Posted by Bsaidus View Post
Thank you, but can it do the automation directely after the boot??
jggimi already gave you the answer but apparently you didn't look at it. Right at the top of the autoinstall(8) manpage it says:
Quote:
autoinstall – unattended OpenBSD installation and upgrade
You should read it.
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Old 2nd February 2023
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If booting from any of the Project-supplied media images, such as a CD ROM .iso, there will be an initial keyboard prompt. In order to have a completely automated installation from boot with no keyboard input, either the admin must use a netboot installation method or modify the media image to include an /auto_install.conf file, as discussed in the man page.
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Old 3rd February 2023
Bsaidus Bsaidus is offline
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Thank you all for advices,
I'll try to do with your recommandations.
The finality, I want to have an openbsdXX.iso with the autoinstall script ( no netboot, no httpserver) only the iso.
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Old 3rd February 2023
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You have stated three requirements:
  1. No network connectivity.
  2. No keyboard use.
  3. Booting optical media only.
I think you will have a very difficult time meeting all three requirements.
  • The autoinstall(8) facility can be used without a network, but to do so requires a keyboard to indicate the local path to the script.
  • Adding files to the .iso image will not suffice. The .iso image CD9960 filesystem is not mounted at boot and is not available as a local path for autoinstall(8).
You will need to add your autoinstall(8) provisioning files to the RAMDISK kernel's built-in RAM disk, rebuild that kernel environment, and then rebuild the .iso image. Even then, I believe you will still need a keyboard to direct the install process to your script.

Good luck!
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Old 3rd February 2023
Bsaidus Bsaidus is offline
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Quote:
Originally Posted by jggimi View Post
You have stated three requirements:
  1. No network connectivity.
  2. No keyboard use.
  3. Booting optical media only.
I think you will have a very difficult time meeting all three requirements.
  • The autoinstall(8) facility can be used without a network, but to do so requires a keyboard to indicate the local path to the script.
  • Adding files to the .iso image will not suffice. The .iso image CD9960 filesystem is not mounted at boot and is not available as a local path for autoinstall(8).
You will need to add your autoinstall(8) provisioning files to the RAMDISK kernel's built-in RAM disk, rebuild that kernel environment, and then rebuild the .iso image. Even then, I believe you will still need a keyboard to direct the install process to your script.

Good luck!

Waw! I'll try and let you know
Thank you.
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Old 3rd February 2023
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You will need to read man pages. Along with autoinstall(8), you'll need to read vnd(4), vnconfig(8), mount(8) and umount(8), release(8), and mkhybrid(8). Likely more man pages will be needed, but these are the ones that come to mind first.

You will also need to experiment repeatedly with kernel and release building, because you will need to make customized provisioning entries in /usr/src/distrib/$(machine)/* in order to modify what's included in the RAMDISK kernel's RAM disk filesystem.

As I noted above, you will also need some good luck, too.
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