On Wed, Jun 22, 2011 at 03:09:12PM +0800, YunQiang Su wrote: > When installing, user will usually install grub in MBR or they have no > choice to set it when install (install from LiveCD).
If you mean the Ubuntu live CD, IIRC it does have an option for this although only when you're doing manual partitioning. But it's easy enough to reconfigure later anyway, particularly for the sort of person who has multiple operating systems installed. > and I can not find out any necessity to run grub-install every time. There is at present no guarantee of compatibility between older GRUB images and newer generated configuration files. We try not to break this gratuitously, but there have been some changes that affected compatibility at various points in recent history, and we certainly don't do very significant testing with older images (for instance, the GRUB script "shell" gained several important new features in 1.99 and it would not surprise me one bit to find autogenerated configuration files taking advantage of these; I'm almost certain that current grub.cfg files will not work with images from the 1.97 era). If we simply left old images in place and never upgraded them, as you suggest in #631224, then I guarantee you that other things would break; it would be disastrously bad for users. We therefore try to upgrade installed versions of GRUB to match the current installed package. -- Colin Watson [cjwat...@debian.org] -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110622092031.gb31...@riva.ucam.org
