asterisk users - Feb 2006 - Cannot boot machine up after working on zaptel....

Hi all,

hard for me to explain this, but it keeps happening on a number of machines

I attempt to upgrade zaptel, or do something to zaptel modules..... and then
I reboot the machine, and for whatever reason, it hangs on loading the
modules

Either the install wasn't complete, the zaptel modules settings are wrong,
whatever....
but the problem is now I can't get past the boot up and the machine is
basically lost

Is there any way to bypass the module load attempt or anything?

I've tried holding SHIFT down to get the LILO menu, and loading LinuxOLD,
but no go

I'm on Debian 2.4.18, with Zaptel 1.0.9.2

I understand that there was something wrong in the modules config, but
surely I should be able to bypass and get back in to fix it!

Any ideas greatly appreciated, as I would rather not have to use an old
clone drive and start over


--
Chris Earle
System Solutions Specialist


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On 28.02.2006, at 15:44, Chris Earle ((CBL)) wrote:
> Hi all,
>
> hard for me to explain this, but it keeps happening on a number of  
> machines
>
> I attempt to upgrade zaptel, or do something to zaptel modules.....  
> and then
> I reboot the machine, and for whatever reason, it hangs on loading the
> modules
>
> Either the install wasn't complete, the zaptel modules settings are  
> wrong,
> whatever....
> but the problem is now I can't get past the boot up and the machine is
> basically lost
>
> Is there any way to bypass the module load attempt or anything?
>
> I've tried holding SHIFT down to get the LILO menu, and loading  
> LinuxOLD,
> but no go
>
> I'm on Debian 2.4.18, with Zaptel 1.0.9.2
>
> I understand that there was something wrong in the modules config, but
> surely I should be able to bypass and get back in to fix it!
>
> Any ideas greatly appreciated, as I would rather not have to use an  
> old
> clone drive and start over
Hi Chris,

How about you use a Live CD distribution and disable the loading of  
the driver in some config? Unfortunately I'm not very familiar with  
Debian, in Gentoo you would edit /etc/modules.autoload/kernel-2.6 and  
then uncomment the line that loads the module.
You should then be able to boot "normally" and do what you have to do
in order to get it to work. Does this also happen when you load the  
driver using modprobe?

Christoph
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On Tue, Feb 28, 2006 at 09:44:35AM -0500, Chris Earle (CBL)
wrote:
> Hi all,
> 
> hard for me to explain this, but it keeps happening on a number of machines
> 
> I attempt to upgrade zaptel, or do something to zaptel modules..... and
then
> I reboot the machine, and for whatever reason, it hangs on loading the
> modules
> 
> Either the install wasn't complete, the zaptel modules settings are
wrong,
> whatever....
> but the problem is now I can't get past the boot up and the machine is
> basically lost
> 
> Is there any way to bypass the module load attempt or anything?
> 
> I've tried holding SHIFT down to get the LILO menu, and loading
LinuxOLD,
> but no go
> 
> I'm on Debian 2.4.18, with Zaptel 1.0.9.2
For starters, upgrade kernel?

Anyway,

In the lilo prompt, write:

  Linux init=/bin/bash

(that is: add the extra parameter init=/bin/bash )

This will boot the system and give you a shell before loading any
modules. 

Now in there, run:

  mount -o remount,rw /

and probably also:

  mount /proc

Do whatever edits are required so the zaptel modules won't load (editing
/etc/modules, or even moving the module files from the kernel dir) , and
then:

  umount /proc
  mount -o remount,ro /

  exec /sbin/init

The boot process should continue normlly (this is /sbin/init running as
process 1).

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