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Re: fixing the "grub loading stage1.5" hanging error

From: adrian15
Subject: Re: fixing the "grub loading stage1.5" hanging error
Date: Tue, 30 Oct 2007 11:29:09 +0100
User-agent: Mozilla-Thunderbird (X11/20070828)

Michael L. Gualtieri wrote:
Thanks, adrian15! Your info was able to help me drill down farther to the error.
You're welcome.

It looks like grub is hanging on this line of the source:
file: stage2/bios.c
line: err = biosdisk_int13_extensions ((read + 0x42) << 8, drive, &dap);

biosdisk_int13_extensions is an assembler function, so I'm not really sure how to figure out what line in the assembly it is hanging on.
I'm not sure too. I'll take a look at it perhaps at home.

If anyone has any ideas on what is happening in this function, or how to possibly debug this further I'm all ears.

You mentioned that to work around this error I should link the stage1 to the stage2 directly. I'm not exactly sure how to do this. Do you have a link to where this is in the documentation?

Basically what you have to do is rename your stage1_5 file and then installing grub as always with the root and setup command. stage1_5 will not be found an stage1 will link directly to stage2.

How do you rename an stage1_5 file? Something so easy as this:

mv /boot/grub/e2fs_stage1_5 /boot/grub/REMOVED_e2fs_stage1_5

If you re-install grub with the grub-install command it copies again the stage1_5 file from the /lib/grub folder so you need to rename also this one. (Or do not use grub-install but root and setup commands directly.)


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