close 345931 thanks Hi,
grub-install copies the various stage* files into /boot/grub. grub shell does not. If you do not copy the stage* files then they will be incompatible with the boot sector that is installed. grub-install is the recommeneded method to install. On Mon, Feb 06, 2006 at 02:55:05PM +0100, Frans Pop wrote: > retitle 345931 System fails to boot after updating boot sector from grub > interactive shell > thanks > > I have managed to reproduce this in vmware using the following procedure: > - new Sarge install (has grub 0.95+cvs20040624-17) > - change sources list to unstable and upgrade > > After grub is upgraded (to 0.97-4), but without re-installing its boot sector, > the system reboots without problem. > > Now there are two methods to reinstall the grub boot sector to the new > version. > > 1) Run the grub-install script > # grub-install /dev/sda1 > Installation finished. No error reported. > This is the contents of the device map /boot/grub/device.map. > Check if this is correct or not. If any of the lines is incorrect, > fix it and re-run the script 'grub-install'. > > (hd0) /dev/sda > # reboot > => system reboots without any problems > > 2) Run the grub shell interactively as in the original report > # grub > grub> find /boot/grub/menu.lst > (hd0,0) > grub> root (hd0,0) > Filesystem type is ext2fs, partition type 0x83 > grub> setup (hd0) > > Checking if "/boot/grub/stage1" exists... no > Checking if "/grub/stage1" exists... yes > Checking if "/grub/stage2" exists... yes > Checking if "/grub/e2fs_stage1_5" exists... yes > Running "embed /grub/e2fs_stage1_5 (hd0)"... 16 sectors are embedded. > succeeded > Running "install /grub/stage1 (hd0) (hd0)1+16 p (hd0,0)/grub/stage2 > /grub/menu..lst"... succeeded > Done. > grub> quit > > # reboot > => Grub menu is not shown (screen remains blank); system fails to boot > > Conclusions: > - grub-install does the right thing > - the setup command in the grub interactive shell checks if the stage files > exist, but apparently its setup command fails to check if they are > compatible with the current version of grub > > I will keep the image I created this way in vmware for a while in case > additional information is wanted. > > Cheers, > Frans Pop > > > _______________________________________________ > Pkg-grub-devel mailing list > [EMAIL PROTECTED] > http://lists.alioth.debian.org/mailman/listinfo/pkg-grub-devel -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
