Re: Some notes on RootOnZFS article in wiki

From: Dag-Erling Smørgrav <des_at_des.no>
Date: Tue, 22 Dec 2009 12:48:10 +0100
"James R. Van Artsdalen" <james-freebsd-current_at_jrv.org> writes:
> Ollivier Robert <roberto_at_keltia.freenix.fr> writes:
> > On modern machines, system will boot from the GPT "freebsd-boot"
> > partition w/o having it active
> A correctly-written PC BIOS does not even look at (or for) a partition
> table of any sort when booting.  That's been the case for a
> quarter-century.   A system that does not boot without the active bit
> set is buggy, not new vs. old.

Wrong, wrong, wrong.

Some MBRs look for the active bit, some don't.  It doesn't mean they're
buggy; it's a design decision.  FWIW, ours does.

Some BIOSes *do* read the partition table; there was an issue some years
ago with ThinkPads that froze at boot if you installed FreeBSD on them
because they misidentified the FreeBSD partition as a suspend-to-disk
partition.

DES
-- 
Dag-Erling Smørgrav - des_at_des.no
Received on Tue Dec 22 2009 - 10:48:11 UTC

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