Date: Tue, 8 Oct 2013 23:31:12 +0100 From: Andy Zammy <andyzammy@googlemail.com> To: Warren Block <wblock@wonkity.com> Cc: freebsd-questions@freebsd.org Subject: Re: failed to create gmirror with the handbook instructions Message-ID: <CANuHMWPNWXLnGH-7F1XdqgxDMJ076bK9Ztr_Rh%2B7p0Nd-AOqTA@mail.gmail.com> In-Reply-To: <alpine.BSF.2.00.1310081551090.29745@wonkity.com> References: <CANuHMWNBToJsPiXzGpJuv77z50aYkdiNnNJy_oz3kMwtqx23eQ@mail.gmail.com> <alpine.BSF.2.00.1310071825200.94688@wonkity.com> <CANuHMWMtMcj_ShgcvzmPyJOAH_gLoSp=mh4Q=ABYtx3VFtA3zw@mail.gmail.com> <alpine.BSF.2.00.1310081551090.29745@wonkity.com>
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# gpart show ada0s1 gpart: No such geom: ada0s1 By the way, this is after a restart of the machine. There's nothing to back up, I'm installing a fresh os, so I just install on one drive, plug the other in, and start following the handbook instructions for this method. So the only thing in loader.conf is geom_mirror_load="YES". I'll rephrase the question: given that the handbook originally wanted me to dump from ada0s1 to the mounted mirror/gm0s1 (which was ada1 at the time), and I cannot do this, would it be enough to dump from mirror/gm0s1 (which is what ada0 is now mounted as), to ada1s1 (even though this *should* be the other way around, it's equivalent as far as i can see, isn't it?)? On 8 October 2013 22:59, Warren Block <wblock@wonkity.com> wrote: > On Tue, 8 Oct 2013, Andy Zammy wrote: > > This is actually trickier than it first looked. First I got into single >> user mode by supplying 'shutdown now', but the tunefs commands all failed >> with the following: >> #tunefs -j disable /dev/ada0s1a >> Clearing journal flags from inode 4 >> tunefs: Failed to write journal inode: Operation not permitted >> tunefs: soft updates journalling cleared but soft updates still set. >> tunefs: remove .sujournal to reclaim space >> tunefs: /dev/ada0s1a: failed to write superblock >> >> I tried the dump command on the off-chance, and it failed with the >> original errors. Is there anything you can recommend? >> >> I then noticed you specified to boot into single user more, so I >> restarted the machine, with only ada0 attached. Because the handbook wants >> me to use the mirror/gm0sX devices, I swapped >> my fstab file back to the original. The boot loader now only seems to >> recognise the mirror/gm0 nodes, the original ada0sX are gone (though ada0 >> still shows up). >> > > I don't know what would do that. The device nodes on the original drive > should be untouched until it is added back to the mirror. What does > gpart show ada0s1 > show? Did you make a backup of the original drive first? Is there an > entry for vfs.root.mountfrom in /boot/loader.conf? > > I'm not sure if it's acceptable to do the dump by booting the 1st hard >> drive using the mirror/gm0, and then dump to the 2nd hard drive by mounting >> what will be ada1sX. Is this okay to do? >> > > Sorry, I don't quite understand the question. The mirror will not be > usable until a good copy of the original drive is made to it. >
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