Re: Having the configuration file embedded into core.img look for the grub partition by its label

[Arbiel Perlacremaz]

Hi

Please discard my previous message, which I sent mistaklingly.
Le 27/09/2014 17:39, Arbiel Perlacremaz a écrit :
> Hi
> Le 23/09/2014 18:37, Andrei Borzenkov a écrit :
>> В Tue, 23 Sep 2014 10:11:21 +0200
>> Arbiel Perlacremaz <address@hidden> пишет:
>>
>>> Having the grub directory on the external device is not what I'm looking
>>> for.
>>>
>>> I indeed use several external devices and I've installed GRUB on each of
>>> them so that it is always available, whatsoever my configuration is. To
>>> avoid confusion when updating GRUB, all my fstab files mount a unique
>>> directory, always the same, on /boot/grub. This is the reason why I want
>>> GRUB on my hard drive.
>>>
>> Well, use grub-mkimage then; you are completely free in adding your own
>> embedded config file.
> OK
>
> However this raises two issues
>
> 1) there is no grub-install parameter (
>>> Le 23/09/2014 01:09, Vladimir 'φ-coder/phcoder' Serbinenko a écrit :
>>>> On 22.09.2014 22:49, Arbiel Perlacremaz wrote:
>>>>> Hi
>>>>>
>>>>> A way I'm using to avoid any Window's reinstallation to overwrite GRUB
>>>>> in a multiboot environment is to install the later on the MBR of a USB
>>>>> key. That way, when booting with no key pluged, the PC boots into
>>>>> Windows and when booting with the key pluged, the PC boots according to
>>>>> the choice of the user in the grub menu's.
>>>>>
>>>>> I do locate the grub.cfg file in a partition of the internal hard drive.
>>>>> In such a situation, grub-install embeddes a config file which reads
>>>>> something like
>>>>>
>>>>>     search.fs_uuid 367C9BBD7C9B75F9 root hd0,msdos1
>>>>>     set prefix=($root)'/'
>>>>>
>>>>> This is great.
>>>>>
>>>>> However, any undesired modification by any piece of software of the
>>>>> partition's uuid will prevent GRUB to find it and lead to a boot
>>>>> failure. As the Windows partition is less prone to such modifications as
>>>>> Linux partitions, I do locate the grub.cfg file in that Windows
>>>>> partition. However it would be more straightforward to locate the file
>>>>> into a Linux partition, and to have grub search this partition by its 
>>>>> label.
>>>>>
>>>>> How could this be done ? If this can't presently be done, can it be
>>>>> included in a future grub release ?
>>>> use --boot-directory to place all files on usb stick and make it load
>>>> any other grub.cfg you might want.
>>>>> Regards
>>>>>
>>>>> Arbiel
>>>>>
>>>>> _______________________________________________
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>>>>> address@hidden
>>>>> https://lists.gnu.org/mailman/listinfo/grub-devel
>>>>>
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