Date: Sun, 31 Oct 2004 00:33:00 GMT From: Marcel Moolenaar <marcel@FreeBSD.org> To: root@schmalzbauer.de, marcel@FreeBSD.org, freebsd-bugs@FreeBSD.org Subject: Re: kern/73251: GEOM_GPT only works with ACPI in the kernel, not as module Message-ID: <200410310033.i9V0X0s9013757@freefall.freebsd.org>
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Synopsis: GEOM_GPT only works with ACPI in the kernel, not as module State-Changed-From-To: open->closed State-Changed-By: marcel State-Changed-When: Sun Oct 31 00:22:19 GMT 2004 State-Changed-Why: The problem described in this PR has nothing to do with ACPI and is not even specific to GPT (except for the fact that it's currently only MBR and GPT that can coexist). What is described is that GEOM does not allow multiple slicers on a single provider. Both the MBR and GPT reside on the same disk and GEOM will only create devices for one. There's however a window in which all device special files exist: when no file system has been mounted. As soon as a file system is mounted, the slicer under which the file system is mounted survives. The other disappears. As such, this PR describes a configuration problem caused by the use of invalid options (like the -k option to gpt migrate). GPT can not be used on a disk that already has a MBR, it is defined that way by the GPT specification and we only allow it in FreeBSD for debugging purposes. http://www.freebsd.org/cgi/query-pr.cgi?pr=73251
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