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Re: boot process hangs on init of mysqld



Quoting Keith Christian <keithchristian@yahoo.com>:

> ----- Original Message ----
> From: "debian-guy@agileitinc.com" <debian-guy@agileitinc.com>
> To: debian-user@lists.debian.org
> Sent: Thursday, October 25, 2007 8:17:58 AM
> Subject: boot process hangs on init of mysqld
>
> When my boot process starts mysqld, it hangs.  How can I get it
> unstuck?  I cannot ssh into the machine because the boot process
> hasn't progressed far enough.  So, I cannot edit the init scripts to
> remove mysqld.
>
> Is there some key-stroke sequence I might be able to try to interrupt
> the init.d scripts?  I've tried the obvious (ctl-C, ctl-D, etc.)
>
>
>
> You'll want to boot into "single user" mode.  Try these steps:
>
> 1. Boot the machine --- be ready at the console keyboard to press  
> "e" as in step 2 below.
>
> 2. At the GNU GRUB screen, press "e" within 1 - 2 seconds to stop  
> the boot process, to edit the kernel's boot parameters.
>
> 3. Press the down arrow key to highlight the line that looks similar   
>  to the following:
>
>        kernel /boot/vmlinuz-2-6.18-4-686 root=/dev/hda1 ro
>
> 4. With the highlight on that line, press "e" once again.
>
> 5. Screen changes to one where the line can be edited (See "Minmal  
> BASH-like line editing is supported", and a prompt "grub edit >".)
>
> 6. The cursor is at the end of the line, type "single" (the line now   
>  reads thus:)
>
>        kernel /boot/vmlinuz-2-6.18-4-686 root=/dev/hda1 ro single
>
> 7. Press the Return key.
>
> 8. The GNU GRUB screen reappears, press "b" to boot the system.
>
> 9. See a few screens of kernel messages, then a prompt "(or type  
> Control-D to continue:)"
>
> 10. Type the root password (if you type Control-D, the boot process  
> continues as if you weren't booting into single user mode.)
>
> 11. See a # shell prompt.  Make changes to the init scripts - you  
> may want to do this with the update-rc.d utility, for help, type
>
>        man update-rc.d
>
> 12. When done with changes to the init script links, type "exit" at  
> the # prompt, and the machine continues the boot process as usual.
>
>
> ======Keith



----- Original Message ----
From: "debian-guy@agileitinc.com" <debian-guy@agileitinc.com>
To: debian-user@lists.debian.org
Sent: Thursday, October 25, 2007 10:17:22 AM
Subject: Re: boot process hangs on init of mysqld
Thanks Keith!  Unfortunately, this machine uses Lilo instead of Grub.  
Can something similar be done to enter 'single user mode' when booting   
using Lilo?
-- Mark



I don't have a machine with LILO on it to test with, but, try the word "single" at the LILO: prompt, e.g.

        LILO: single

Press RETURN. This should bring it to single user mode, no guarantees, since I can't test.

======Keith



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