[Bug 194359] New: bsdinstall should set active flag in GPT PMBR if not booting using EFI
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Tue Oct 14 22:54:40 UTC 2014
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194359
Bug ID: 194359
Summary: bsdinstall should set active flag in GPT PMBR if not
booting using EFI
Product: Base System
Version: 10.1-BETA3
Hardware: amd64
OS: Any
Status: Needs Triage
Severity: Affects Some People
Priority: ---
Component: misc
Assignee: freebsd-bugs at FreeBSD.org
Reporter: cperciva at FreeBSD.org
As mentioned in bug #133493, some systems will not boot if there is no "active"
slice in the "MBR". Others, such as my laptop, will boot but only after
printing "Invalid partition table!" and waiting for someone to hit Enter.
This was fixed in 2009 by r198097; but it turned out that this broke EFI
booting (since EFI requires that the GPT protective MBR has no active bits
set). EFI was unbroken 16 months ago by r251588... but this re-broke non-EFI
booting on the affected machines.
It seems to me that the right compromise here would be for bsdinstall to set
the "active" flag if and only if a system is being set up for GPT with "legacy"
booting.
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