-----BEGIN PGP SIGNED MESSAGE----- Hash: RIPEMD160 Luca wrote: > Grub-0.9x is old Grub legacy and no-more maintained.
According to their site, it is maintained, just no new features are being added. (Though I'm not sure what sense of the word "maintained" they're using then... but whatever. Presumably it just means they'd still fix bugs if there are any.) > Grub-1.x is new one [...] I tried it only x86 but there was a similar > discussion in Debian for x86-64 arch support. Here's where I'm a bit confused. Why should grub need to switch the processor into long mode? For one, the kernel already does that -- IIRC, Linux expects to start in real mode. (I'm not sure if there are any provisions to start in protected mode, for grub2, or not. I'm pretty sure grub2 switches into protected mode, so if that's true and it works, then there probably is some protocol to make it work.) But for two, isn't 4G of virtual address space way more than enough for grub to do whatever it needs to do? I mean, all it has to do is load up a file or two off the host FS and jump to an address inside the memory image of one of the files. That's not nearly complicated enough to require more than 4G of memory. In short, I'm not sure the bootloader needs to be 64-bit. Now I can see making the grub shell (and other programs on the host) be 64-bit. Even if that's way overkill IMO too, it would be necessary if you're trying to do a pure64 system (because you won't have the 32-bit ld.so). Is that all that's being discussed when people talk about "x86-64 arch support"? (Not that a pure64 system is all that useful if you need -- or want -- to use Flash, but that's a different issue.) In any case, I had planned on doing some grub2 testing today, so hopefully I'll be able to get it to work. I really do need to make and test a bootable floppy first, though. :-) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGogDjS5vET1Wea5wRAzYdAKC4LsfvxS8vEO6jNsH8tYNJDiKmPACfULGA BrlI1fZyDJ8IiIHHwBdOoyQ= =Xjqk -----END PGP SIGNATURE----- -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
