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#1 2013-01-29 20:11:23

zuargo
Member
From: Concepción, Chile
Registered: 2009-08-20
Posts: 116

How to stop the boot process after the GRUB menu?

Hello there.

I am getting an error message in the boot process, after the GRUB menu, but I can't read completely the message because it is shown too fast. So, how can I stop the process when I see the error message, for writing down it?

Thanks in advance.

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#2 2013-01-29 20:21:17

kaszak696
Member
Registered: 2009-05-26
Posts: 543

Re: How to stop the boot process after the GRUB menu?

If it's an error thrown by kernel or a service, it will be somewhere in 'journalctl -b'.

Last edited by kaszak696 (2013-01-29 20:22:41)


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#3 2013-01-30 00:12:11

zuargo
Member
From: Concepción, Chile
Registered: 2009-08-20
Posts: 116

Re: How to stop the boot process after the GRUB menu?

Thank you for replying.

I ran the command, but it does not show anything.

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#4 2013-01-30 00:17:24

Trilby
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From: Massachusetts, USA
Registered: 2011-11-29
Posts: 14,190
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Re: How to stop the boot process after the GRUB menu?

Does it not show anything, or does it just not show the error you are looking for?  Does it show a lot of boot information, or just an error message about permissions and the adm group?


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#5 2013-01-30 00:40:30

zuargo
Member
From: Concepción, Chile
Registered: 2009-08-20
Posts: 116

Re: How to stop the boot process after the GRUB menu?

First I ran journalctl -b and I got:

$ journalctl -b
Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this notice off.

Then I ran the same command including sudo, but it did not show anything:

$ sudo journalctl -b
$

So, I ran su and after journalctl -b, but neither information was displayed:

$ su
Password:
# journalctl -b
#

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#6 2013-01-30 03:08:38

shallpion
Member
Registered: 2009-12-12
Posts: 61

Re: How to stop the boot process after the GRUB menu?

zuargo wrote:

Hello there.

I am getting an error message in the boot process, after the GRUB menu, but I can't read completely the message because it is shown too fast. So, how can I stop the process when I see the error message, for writing down it?

Thanks in advance.

I didn't try this before, but if you use systemd, you may want to try systemd.confirm_spawn to invoke interactive booting process, so you can start the services one by one manually therefore locate the one throwing out error message.

It is explained in the systemd manual:

http://www.freedesktop.org/software/sys … stemd.html

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#7 2013-02-02 14:37:48

zuargo
Member
From: Concepción, Chile
Registered: 2009-08-20
Posts: 116

Re: How to stop the boot process after the GRUB menu?

Thank you so much. The error is shown when is load "something" related to syslog. Maybe the system, in an update, made the change and I no noticed of this

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