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Re: Problem after update with grub and --unrestricted on i386

From: lukshuntim
Subject: Re: Problem after update with grub and --unrestricted on i386
Date: Fri, 05 Sep 2014 19:17:23 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0

On Friday, September 05, 2014 03:25 AM, Jordan Uggla wrote:
On Wed, Sep 3, 2014 at 5:36 AM, Michael D. Setzer II
<address@hidden> wrote:
Most of my systems are x64 machines, but have 3 32 bit machines and on
these after to a grub2-mkconfig -o /boot/grub2/grub.cfg had the machine
giving an error message about --unrestricted being invalid??

On BIOS based systems grub, at boot, is always 32 bit. So the
difference you're seeing is not about 32 vs 64 bit, even though they
seem to be correlated. It may actually be a difference between BIOS
and UEFI, or more importantly Fedora's UEFI secure boot scheme vs a
more standard upstream grub configuration in BIOS or UEFI. It could
also be that even though you have the same version of Fedora
installed, you (for whatever reason) have a different version of grub
actually installed as a bootloader (as opposed to the userland tools).

I was able to use the edit option to remove it, and then it would boot, but got
a number of file not found message. No such problem on the x64 machine.
All running Fedora 20 with grub 2.00.

The x64 machines have the --unrestricted and it works with no problem.
Found that this appears in the 10_LINUX file on the class line. Removed it,
and redid the grub2-mkconfig and that gets ride of the rebooting option, but it
still shows file not found error messages. Was looking for a log file or
something to see what is causing these messages.

Due to the problems of safely writing to a filesystem, grub does not
do any logging to disk. For saving logs of error messages your options
are unfortunately only logging output via serial, taking a picture of
the screen with a camera, or pen and paper. What files specifically
are listed as not found?

Is there any way to ask grub to pause, by pressing a certain key, for example, so that the output from the screen can be examined or a photo taken, screen by screen?


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