Hello, On 16/08/13 12:20, François Patte wrote: > > > > -------- Message original -------- > Sujet: Re: configuring grub > Date : Fri, 16 Aug 2013 11:45:09 +0200 > De : François Patte <francois.pa...@mi.parisdescartes.fr> > Pour : Darac Marjal <mailingl...@darac.org.uk> > > > > Le 16/08/2013 11:15, Darac Marjal a écrit : >> On Fri, Aug 16, 2013 at 11:02:20AM +0200, François Patte wrote: >>> Bonjour, >>> >>> I tried to change the screen resolution and the splash screen in grub: >>> >>> 1- edited /etc/default/grub >>> GRUB_GFXMODE=1280x1024 >> That should work. >> >>> GRUB_BACKGROUND="/usr/share/images/grub/Windbuchencom.tga" >>> >>> 2- run grub-update (it says that it has found the image, then done...) >> The correct command is "update-grub" or "update-grub2" (they're >> essentially the same). >> >>> 3- rebooted and..... nothing has changed! Resolution is still ugly and >>> no splashscreen (the splashscreen is for fun, I don't need it) But I >>> want to change the resolution (it is the default resolution of my screens) >> It's possible that grub can't switch to the resolution. Many graphics >> cards allow access to the basic VGA, SuperVGA etc modes (640x480, >> 800x600, 1024x768) through the VESA BIOS. To get higher resolutions >> (including, perhaps, the native mode of an LCD panel) requires the full >> driver. >> >>> 4- I had a look to the file /boot/grub/grub.cfg >>> The location of the image had been wrongly written: >>> share/images/grub/Windbuchencom.tga but the resolution is correctly set. >> "share/images..." probably indicates you've got /usr on a separate >> partition. Remember that grub doesn't use a full unix-style tree, but >> uses a forest (a bit more like Windows, really) of individual >> partitions. So the TGA file would likely be in (hd1,2)share/images... or >> similar. > > Thanks for your answer. Yes /usr is on a separate partition; shall put > (hd1,2)share/images... in /etc/default/grub? And how to find the correct > numbers? /usr is on /dev/sda2, but it is a a raid array, is grub able to > read that?
I would put the image in the /boot partition, where the grub material is put: see /boot/grub . You may also customize the grub machinery to put the image somewhere in the /boot partition: see /etc/grub.d material. >>> What to do? >>> >>> In /etc/default/grub it is recommended to check the resolution using >>> vbeinfo, I have no vbeinfo program and I cannot find one, what is the >>> package with this program? >> That would be the "grub-pc" or equivalent package. Basically, the >> instruction is to boot into grub press 'c' at the menu (to give you a >> command line) then enter "set pager=1" (return) "vbeinfo" (return). > > OK, that was useful, 1280x1024 is lIsted, but it does not work, I tried > 1024x768 without any success. And of course I made a typo in the mail, I > ran "update-grub" (and not grub-update). have you tried the following command ? hwinfo --framebuffer Keep in mind that grub is sometime capricious. hth, Jerome > > > > -- > François Patte > UFR de mathématiques et informatique > Laboratoire CNRS MAP5, UMR 8145 > Université Paris Descartes > 45, rue des Saints Pères > F-75270 Paris Cedex 06 > Tél. +33 (0)1 8394 5849 > http://www.math-info.univ-paris5.fr/~patte > > > > > -- > François Patte > UFR de mathématiques et informatique > Laboratoire CNRS MAP5, UMR 8145 > Université Paris Descartes > 45, rue des Saints Pères > F-75270 Paris Cedex 06 > Tél. +33 (0)1 8394 5849 > http://www.math-info.univ-paris5.fr/~patte > > > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/520e1180.2020...@rezozer.net