Date: Mon, 20 Feb 2006 16:12:14 -0600 From: "Larry Rosenman" <ler@lerctr.org> To: "'Marcin Jessa'" <lists@yazzy.org> Cc: dougb@FreeBSD.org, freebsd-current@freebsd.org, thierry@herbelot.com Subject: RE: no dump on a gmirror ? Message-ID: <02dc01c6366a$b4336c20$0a0a0a0a@aus.pervasive.com> In-Reply-To: <20060220220037.2d14f128.lists@yazzy.org>
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Marcin Jessa wrote: > On Mon, 20 Feb 2006 13:25:05 -0600 > "Larry Rosenman" <ler@lerctr.org> wrote: > >> Doug Barton wrote: >>> Larry Rosenman wrote: >>>> Thierry Herbelot wrote: >>>>> Hello, >>>>> >>>>> I have recently converted a machine to a full gmirror >>>>> configuration (as explained on >>>>> http://people.freebsd.org/~rse/mirror/ : everything, including >>>>> swap, is mirrored). >>>>> >>>>> The dump device is configured as AUTO from /etc/defaults/rc.conf >>>>> and the kernel complains when booting that "No suitable dump >>>>> device was found". >>>>> >>>>> Is this to be expected ? (I do not find any hint in gmirror(8) or >>>>> dumpon(8)) >>>> >>>> Yes, unfortunately. >>>> >>>> I wish someone would change it, as if I get a system panic, I'll >>>> not be able to help fix it. >>> >>> Does specifying a device, rather than using AUTO, work for you? >>> >>> Doug >> >> as in? >> >> # dumpon /dev/mirror/gm0s1b >> dumpon: ioctl(DIOCSKERNELDUMP): Operation not supported # >> >> Feb 20 13:23:03 thebighonker kernel: Loading configuration files. >> Feb 20 13:23:03 thebighonker kernel: dumpon: >> Feb 20 13:23:03 thebighonker kernel: ioctl(DIOCSKERNELDUMP) >> Feb 20 13:23:03 thebighonker kernel: : >> Feb 20 13:23:03 thebighonker kernel: Operation not supported >> >> # cat /etc/rc.conf >> hostname="thebighonker.lerctr.org" >> dumpdev="/dev/mirror/gm0s1b" >> >> so, no it doesn't. >> >> I don't believe I can get at the "b" slices of the individual disks >> (da0/da1). > > You may try the same trick as NetBSD uses with RAIDframe: > http://www.netbsd.org/guide/en/chap-rf.html#chap-rf-setup-kerneldump > That won't work, as you can't get at the labels: # bsdlabel da0 bsdlabel: /dev/da0: no valid label found # bsdlabel da0s1 bsdlabel: /dev/da0s1: Operation not permitted # -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 512-248-2683 E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
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