[gentoo-user] Hangs at "Run /init as init process"

[gentoo-user] Hangs at "Run /init as init process"

[Mark Knecht]

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I was quite bored yesterday and having looked at the install guide recently
and seeing quite a few changes since the last time I did a completely new
install I thought I'd pound out a super simple Gentoo minimal stable
install as a VM in Virtualbox just to see how it went. I had no particular
problems with any of the build instructions. To build the kernel I used
'genkernel all' as an experiment. The boot loader is grub. I set almost
nothing by hand in my make.conf file. I have no USE flags. I had no obvious
problems following the install guide other than the machine didn't work.
(!!!) ;-)

When I boot the VM it appears to find the kernel and the initramfs, carries
on for a few seconds and stops at

Run /init as init process

where the boot process just hangs. In top on the host I see Virtualbox
spinning 1 CPU core at 100%.

QUESTIONS:

1) Anything obvious I should go back and check about the build? I've
remounted everything and chroot'ed in.

2) Because it says "Run /init" and not "Run /sbin/init" this problem is, I
assume, happening in the initramfs? I assume so as I don't see the drives
getting mounted, nor any messages about not finding the drives, etc. I know
very little about the details of the init process really. (So I'll get to
learn! Cool!)

3) Generically looking at a number of boot logs on the net it appears the
next thing it would have done would be to run udev and then start mounting
disks? Am I stuck in a bad initramfs or did I miss something about udev?

Thanks in advance,
Mark

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Re: [gentoo-user] Hangs at "Run /init as init process"

[Ashley Dixon]

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On Fri, Jun 12, 2020 at 10:45:04AM -0700, Mark Knecht wrote:
> When I boot the VM it appears to find the kernel and the initramfs, carries
> on for a few seconds and stops at
> 
> Run /init as init process

This is often caused by an init script not properly  returning  (thus  hanging).
It's a terribly generic error; can you provide  the  full  boot  log  before  it
starts to hang ? Some potential solutions to try in the mean time:

https://stackoverflow.com/q/10955609/
https://mtekk.us/archives/guides/fix-linux-boot-halting-on-run-init-as-init-process/

-- 

Ashley Dixon
suugaku.co.uk

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Re: [gentoo-user] Hangs at "Run /init as init process"

[tedheadster]

You might verify what kind of console your VM is using. Is it VGA or
serial? You can tell it to print boot messages early:

earlyprintk=vga
or
earlyprintk=ttyS0,115200n8

- Matthew