From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1XXyMU-0001a0-UN for mharc-grub-devel@gnu.org; Sat, 27 Sep 2014 16:12:58 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37354) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XXyMN-0001Yo-IZ for grub-devel@gnu.org; Sat, 27 Sep 2014 16:12:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XXyMI-0006g1-Bf for grub-devel@gnu.org; Sat, 27 Sep 2014 16:12:51 -0400 Received: from mout.gmx.net ([212.227.17.21]:54300) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XXyMI-0006ft-1F for grub-devel@gnu.org; Sat, 27 Sep 2014 16:12:46 -0400 Received: from [192.168.1.13] ([31.34.87.55]) by mail.gmx.com (mrgmx101) with ESMTPSA (Nemesis) id 0M4ScS-1YUSXR2q4a-00yfYz; Sat, 27 Sep 2014 22:00:05 +0200 Message-ID: <54271744.3000809@gmx.fr> Date: Sat, 27 Sep 2014 22:00:04 +0200 From: Arbiel Perlacremaz User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2 MIME-Version: 1.0 To: Andrei Borzenkov , The development of GNU GRUB Subject: Re: Having the configuration file embedded into core.img look for the grub partition by its label References: <54208B55.7060100@gmx.fr> <5420AC43.7060303@gmail.com> <54212B29.80907@gmx.fr> <20140923203734.1bf0eaca@opensuse.site> In-Reply-To: <20140923203734.1bf0eaca@opensuse.site> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K0:a8/XaHIT3UCB6MN5PHL4qMebIY509YAjNLb8mf740riNcGwZJEW nMVKUZ9i15F8JRJdPL0gB3XXHTduUfT12R/vT5s7aZUZY9aEPWDxcJYfpgeZtNUoAPvhhy6 qTOdW9yAXQlhI3Y53ffg9CKmk7GTGVrJYhxM4+s7bYDtAyIDhrMaYe6QtEHexM/AICpAD4E gc28pFXHpo+W3eVsAixtA== X-UI-Out-Filterresults: notjunk:1; X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 212.227.17.21 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 27 Sep 2014 20:12:56 -0000 Le 23/09/2014 18:37, Andrei Borzenkov a écrit : > В Tue, 23 Sep 2014 10:11:21 +0200 > Arbiel Perlacremaz 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. > In using Ubuntu 14.04 LTS, I don't know which grub version I'm presently using, as the -v parameter don't mean "print the version information" any longer, but "print verbose messages". In reviewing grub-install parameters, I did not find any one allowing for the incorporating a user-generated grub image. Nor don't I know how to use grub-mkimage to generate such an image. However, I tried the --force-file-id parameter and as a result of this, I got what I am looking for. bootinfoscript outputs the following ============================= Boot Info Summary: =============================== => Windows 7/8/2012 is installed in the MBR of /dev/sda. => Grub2 (v2.00) is installed in the MBR of /dev/sdb and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks for / and uses an embedded config file: --------------------------------------------------------------------------- search.file /uuid/2nk2euatog5bddbaf30io4hb root hd0,msdos2 set prefix=($root)'/' It's even better than what I expected as a user probably never will change the names of this grub-install generated directory and file . >> Le 23/09/2014 01:09, Vladimir 'φ-coder/phcoder' Serbinenko a écrit : >>> On 22.09.2014 22:49, Arbiel Perlacremaz wrote: >>>> Hi >>>> >>>> A way I'm using to avoid any Window's reinstallation to overwrite GRUB >>>> in a multiboot environment is to install the later on the MBR of a USB >>>> key. That way, when booting with no key pluged, the PC boots into >>>> Windows and when booting with the key pluged, the PC boots according to >>>> the choice of the user in the grub menu's. >>>> >>>> I do locate the grub.cfg file in a partition of the internal hard drive. >>>> In such a situation, grub-install embeddes a config file which reads >>>> something like >>>> >>>> search.fs_uuid 367C9BBD7C9B75F9 root hd0,msdos1 >>>> set prefix=($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 >>>> Grub-devel@gnu.org >>>> https://lists.gnu.org/mailman/listinfo/grub-devel >>>> >>> >>> >>> _______________________________________________ >>> Grub-devel mailing list >>> Grub-devel@gnu.org >>> https://lists.gnu.org/mailman/listinfo/grub-devel >> >> _______________________________________________ >> Grub-devel mailing list >> Grub-devel@gnu.org >> https://lists.gnu.org/mailman/listinfo/grub-devel >