Chris, > Why do you specifically want a blocklist method of getting the primary > bootloader to load the second?
I may have expressed myself unclearly. What I want is the *secondary* boot loader to be able to load *its own code* from a partition header (e.g. ext4) using block lists. The primary boot loader in the setup I prefer is actually embedded in the MBR and thus doesn't use block lists. It will use "chainloader" command to access the boot sector of the secondary boot loader (well I guess that's also a primitve "block list" if you want to see it that way). > If the primary boot loader is GRUB2, it's capable of reading many > file systems, and then finding a distribution specific grub > configuration file and consuming it. Even legacy formats. Using chainloading has the advantage that the primary bootloader (it's indeed GRUB 0.9x in my case) doesn't have to understand the more advanced filesystems of newer distros. It's no problem to boot a btrfs distro in this way, and when Fedora 31 comes out with KlingonFS as default filesystem, my stupid Grub 0.9X will still be able to chainload it, as long as KlingonFS supports embedding a boot loader in its partition header. Fedora 18's GRUB2 will not be able to do that using a secondary "grub.cfg", unless someone backports a KlingonFS module for it (fortunately, GRUB2 would be able to chainload, too). I like the fact that GRUB2 is able to detect foreign installations and offer auto-generated boot menu entries for them. But there are some scenarios for which the primitive chainloading mechanism is better suited. > If the enhancement in bug 886502 were to happen, would this enable your > primary boot loader to find either Fedora's grub.cfg, or core.img instead of > depending on a blocklist? > > https://bugzilla.redhat.com/show_bug.cgi?id=886502 As long as I install F18 on extX, yes. But as explained above, it wouldn't be my preferred solution. Martin -- Dr. Martin Wilck PRIMERGY System Software Engineer x86 Server Engineering FUJITSU Fujitsu Technology Solutions GmbH Heinz-Nixdorf-Ring 1 33106 Paderborn, Germany Phone: ++49 5251 525 2796 Fax: ++49 5251 525 2820 Email: martin.wi...@ts.fujitsu.com Internet: http://ts.fujitsu.com Company Details: http://ts.fujitsu.com/imprint _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
