Re: gmirror per partition. Was: Re: gmirror gm0 destroyed on shutdown; GPT corrupt
On Wed, Jul 01, 2009 at 10:00:54PM +0200, Wojciech Puchar wrote: It's better to use gmirror per partition. Like this? # gmirror label -vb round-robin root /dev/da0p2 gmirror: Can't store metadata on /dev/da0p2: Operation not permitted. isn't that partition accessed by other process or mounted? should it not be mounted? Sorry, I was just following the handbook, but I now understand it is incorrect when it comes to ia64. many thanks anton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 928 8233 Fax: +44 (0)117 929 4423 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: gmirror per partition. Was: Re: gmirror gm0 destroyed on shutdown; GPT corrupt
# gmirror label -vb round-robin root /dev/da0p2 gmirror: Can't store metadata on /dev/da0p2: Operation not permitted. isn't that partition accessed by other process or mounted? should it not be mounted? yes it should not, no matter what architecture. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
gmirror per partition. Was: Re: gmirror gm0 destroyed on shutdown; GPT corrupt
On Thu, Jun 25, 2009 at 09:41:13AM -0700, Marcel Moolenaar wrote: On Jun 25, 2009, at 4:02 AM, Anton Shterenlikht wrote: dev_taste(DEV,mirror/gm0) g_part_taste(PART,mirror/gm0) GEOM: mirror/gm0: the secondary GPT table is corrupt or invalid. GEOM: mirror/gm0: using the primary only -- recovery suggested. ^^^ You created the mirror after the GPT, which means you destroyed the GPT backup header. gmirror uses the last sector on the disk for metadata and that by itself is a cause for various problems. It's better to use gmirror per partition. Like this? # gmirror label -vb round-robin root /dev/da0p2 gmirror: Can't store metadata on /dev/da0p2: Operation not permitted. # I've read some boot disk gmirror examples, e.g. http://people.freebsd.org/~rse/mirror however, all examples I've seen are for i386, talking about MBR, fdisk and bsdlabel, so these are not directly applicable to ia64. Application of gvinum for boot disk on ia64 is not clear either. It seems gvinum section of the handbook, 21.9, is also based on i386. Please advise many thanks anton -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 928 8233 Fax: +44 (0)117 929 4423 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: gmirror per partition. Was: Re: gmirror gm0 destroyed on shutdown; GPT corrupt
It's better to use gmirror per partition. Like this? # gmirror label -vb round-robin root /dev/da0p2 gmirror: Can't store metadata on /dev/da0p2: Operation not permitted. isn't that partition accessed by other process or mounted? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
