walt wrote: > [EMAIL PROTECTED] wrote: >> Max von Seibold wrote: >> >>> Hello, >>> >>> >>> Does anyone know of any documentation, or howto's on configuring >>> bootblocks. I have two hard drives in my tower and have DragonFly on >>> one. I want to install debian on the second. I am familiar with GRUB but >>> cannot find anything when I google Bootblocks. >> >> Put something like this in your grub menu.lst >> >> # This is to boot FreeBSD >> title FreeBSD >> root (hd0,3) >> savedefault >> makeactive >> chainloader +1 >> boot > > The method above will work, but *only* if the bootblock is > installed properly -- and I think the installation of the > bootblock is the part that Max is confused by. > > I deal with bootblocks by ignoring them completely :o)
Yes, as far as i know the bootblocks are *always* installed by the disklabel that occurs at the beginning of installation. However you have the choice of installing or not the booteasy MBR, and i supposed that the original author was speaking of that. Anyways, to unconfuse the poster, the command to install bootblocks in Dragon or FreeBSD are disklabel -B or bsdlabel -B acting on the appropriate *partition* and boot0cfg -B acting on the appropriate *disk* to install the booteasy MBR. For example disklabel -B ad0s1a boot0cfg -B ad0 Needs probably to be run from a live cdrom on FreeBSD-5,6 due to the GEOM protection on such stuff. As far as i remember the commands are different on OpenBSD. > > Grub will use the bootblock if you want (using the method > above) but will also bypass the bootblock completely and > load /boot/loader directly from the DragonFly filesystem: > > root (hd0,3a) #note: '3a' points to the /root partition > #rather than the bootblock! > kernel /boot/loader #'loader' then loads the real kernel This works fine if /boot/loader is not living on an UFS2 filesystem or if you have a recent grub which knows how to read UFS2. The grub which comes with Debian Sarge does not, for example. This is the reason why i showed the trivial method which always works, in fact the same as for Windows. -- Michel Talon
