Arch Linux

ua4000

Member

Registered: 2015-10-14

Posts: 566

[SOLVED] Have all boot messages stay on console

I read the wiki and successfully applied:
- Have boot messages stay on tty1 / TTYVTDisallocate=no
- removed quiet in GRUB_CMDLINE_LINUX_DEFAULT
- enabled Early KMS start / MODULES=(nouveau)

One issue stays:
after "Loading initial ramdisk ..." the screen is cleared.

How can I disable this ?

Thanks for all pointers.

Last edited by ua4000 (2019-02-03 09:02:31)

mxfm

Member

Registered: 2015-10-23

Posts: 166

Re: [SOLVED] Have all boot messages stay on console

"Loading initial ramdisk ..." - that's looks like bootloader. I don't believe you can keep its messages. Which bootloader do you use?

ua4000

Member

Registered: 2015-10-14

Posts: 566

Re: [SOLVED] Have all boot messages stay on console

I'm using grub, almost with defaults,
except the last line is added:

$ egrep -i -v '^#|^$' /etc/default/grub
GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Arch"
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_CMDLINE_LINUX=""
GRUB_PRELOAD_MODULES="part_gpt part_msdos"
GRUB_TERMINAL_INPUT=console
GRUB_GFXMODE=auto
GRUB_GFXPAYLOAD_LINUX=keep
GRUB_DISABLE_RECOVERY=true
GRUB_CMDLINE_LINUX_DEFAULT=""

As far as I can see, the grub menue at booting time is somehow a graphical mode.

ondoho

Member

Registered: 2013-04-30

Posts: 692

Website

Re: [SOLVED] Have all boot messages stay on console

GRUB is independent and totally separate of whatever comes after it (initrd, windows, whatever) - you cannot scroll from one to the other.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,659

Re: [SOLVED] Have all boot messages stay on console

Didn't you say you removed the quiet parameter?
Also this will require a re-run of grub-mkconfig after editing /etc/default/grub (or edit /boot/grub/grub.cfg directly)

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ua4000

Member

Registered: 2015-10-14

Posts: 566

Re: [SOLVED] Have all boot messages stay on console

Hi seth,
the last line removes the quiet, and yes I run grub-mkconfig.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,659

Re: [SOLVED] Have all boot messages stay on console

I'm frankly unsure how the variables in the default are interpreted, "cat /boot/grub/grub.cfg"?

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

ua4000

Member

Registered: 2015-10-14

Posts: 566

Re: [SOLVED] Have all boot messages stay on console

There is no quiet in my /boot/grub/grub.cfg - during boot I can see the infos about started services etc - so this part works fine.

Currently you can specify variables twice in /etc/default/grub, only the last one is used.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,659

Re: [SOLVED] Have all boot messages stay on console

For clarification: do you get no boot messages or is this about "i want the stuff that was printed before loading the ramdisk to remain on screen" (to keep the grub dialog?)?

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

ua4000

Member

Registered: 2015-10-14

Posts: 566

Re: [SOLVED] Have all boot messages stay on console

I see the grub menu, I see the message
Loading Linux linux ...
Loading initial ramdisk ...
and I see the messages from systemd (early hook, starting version 240), but at this time the grub infos were already cleared.

I assumed that I could prevent this clearing.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,659

Re: [SOLVED] Have all boot messages stay on console

Not really. You could likely copy it and have it re-posted by the init script.
This sounds like an xy-problem? What's the point of keeping those two strings there?

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

ua4000

Member

Registered: 2015-10-14

Posts: 566

Re: [SOLVED] Have all boot messages stay on console

I thought, I could keep those messages too, e.g. in case they show any error or unusual.

I have learned here now, that they are from grub, and that I cannot prevent them from clearing.

Thanks for all answers !

ondoho

Member

Registered: 2013-04-30

Posts: 692

Website

Re: [SOLVED] Have all boot messages stay on console

dmesg keeps a log of kernel messages from very early on.
except for those two lines from grub (which are just something that is defined in grub.cfg), my guess is there's everything in there from the moment the kernel is loaded (not initrd, i think, and definitely much earlier than systemd)