Hi Michael,
I have to admit, I'm not very proficient at grub. I just answered your
first mail this morning because the 2048 rang the "Advanced Sector
Format" bell in my head.
Anyway, I did some digging and this is what I found:
http://www.gnu.org/software/grub/manual/html_node/BIOS-installation.html#BIOS-installation
So in fact, the MBR stays at 512 Bytes because that's the standard for a
traditional partitioning system. That is where the actual boot loader
is. But the core.img-file is indeed placed between the boot loader and
the first partition. Usually operatings systems begin at Sector 63
leaving roughly 31k of space available. With the new drives this gets
pushed back even further to 2048.
What is the output of "sudo fdisk -ul /dev/sda" on the machine where
you're having these troubles?
Regards,
Stefan
Am 10.03.2012 13:37, schrieb Michael D. Setzer II:
This is the message that is returned when trying to install grub2
on a system that actually already is running grub2 on a Fedora 16
machine that was upgrade.
#grub2-install --recheck /dev/sda
/sbin/grub2-setup: warn: Your embedding area is unusually small.
core.img won't fit in it..
/sbin/grub2-setup: warn: Embedding is not possible. GRUB can
only be installed in this setup by using blocklists. However,
blocklists are UNRELIABLE and their use is discouraged..
/sbin/grub2-setup: error: will not proceed with blocklists.
On some machines, where I moved the first partition from 63 to
2048 the process runs with no error. In looking at the hex code of
the process it seems to be the regular mbr, but then it is followed
by the core.img file after that?
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Michael D. Setzer II - Computer Science Instructor
Guam Community College Computer Center
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mailto:[email protected]
http://www.guam.net/home/mikes
Guam - Where America's Day Begins
G4L Disk Imaging Project maintainer
http://sourceforge.net/projects/g4l/
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