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Re: Having the configuration file embedded into core.img look for the gr


From: Andrei Borzenkov
Subject: Re: Having the configuration file embedded into core.img look for the grub partition by its label
Date: Sat, 27 Sep 2014 19:47:14 +0400

В Sat, 27 Sep 2014 17:39:50 +0200
Arbiel Perlacremaz <address@hidden> пишет:

> 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 (

Did you accidentally omitted something?

> >> 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
> >>>>
> >>>> _______________________________________________
> >>>> Grub-devel mailing list
> >>>> address@hidden
> >>>> https://lists.gnu.org/mailman/listinfo/grub-devel
> >>>>
> >>>
> >>> _______________________________________________
> >>> Grub-devel mailing list
> >>> address@hidden
> >>> https://lists.gnu.org/mailman/listinfo/grub-devel
> >> _______________________________________________
> >> Grub-devel mailing list
> >> address@hidden
> >> https://lists.gnu.org/mailman/listinfo/grub-devel
> 




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