Date: Sun, 19 Sep 2010 21:22:29 +0200 From: Henri Hennebert <hlh@restart.be> To: Dan Mack <mack@macktronics.com> Cc: freebsd-stable@freebsd.org Subject: Re: MFC of ZFSv15 Message-ID: <4C9662F5.2070003@restart.be> In-Reply-To: <EC5B93DB-03F6-41BF-BFAA-87ADE84AE7FC@macktronics.com> References: <201009152007.17320.Pascal.Stumpf@cubes.de> <201009151830.o8FIUWEZ021844@lava.sentex.ca> <4C911AB0.6090901@delphij.net> <4C91AEBF.50502@FreeBSD.org> <201009161355.o8GDtroR028629@lava.sentex.ca> <4C923557.40004@DataIX.net> <4C9269EB.8020002@restart.be> <EC5B93DB-03F6-41BF-BFAA-87ADE84AE7FC@macktronics.com>
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On 09/19/2010 18:33, Dan Mack wrote: > But I should be able to boot my ZFSv14 root pool using the ZFSv15 build of FreeBSD, correct? Yes > But the problem scenario would be when I've upgraded by root pool to v15 and I attempt to boot it with v14 boot loader. At least that is what I think ... You are right > > I guess what I'm getting at is ... you should be able to buildworld, installkernel, reboot, installworld, reboot without worry. It is the case > But when after your run 'zpool upgrade', you will need to re-write the bootcode using gpart on each of your root pool ZFS disks. I prefer to install bootcode BEFORE. Then reboot and check it with the printf of my simple patch. Then you can zpool/zfs upgrade without problem. > > Am I understanding this correctly ? > > Thanks for all the work on ZFS BTW, it's great! > > Dan > > On Sep 16, 2010, at 2:03 PM, Henri Hennebert wrote: > >> On 09/16/2010 17:18, jhell wrote: >>> On 09/16/2010 09:55, Mike Tancsa wrote: >>>> >>>> Thanks again for all the ZFS fixes and enhancements! Are there any >>>> caveats to upgrading ? >>>> >>>> Do I just do >>>> >>>> zpool upgrade -a >>>> zfs upgrade -a >>>> >>>> or are there any extra steps ? >>>> >>> >>> Hi Mike, >>> >>> No-one knows your bootcode better than you. So if you are upgrading >>> don't forget if you are on a ZFS root then your bootcode might need >>> updating. >>> >> I was bitten by this problem in a previous ZFS upgrade. >> >> To be sure, I have added this patch to zfsimpl.c so, at boot I know if zpool/zfs upgrade will be OK. >> >> Henri >>> >>> Regards, UPDATING should have anything else. >>> >> >> <sys_boot_zfs.patch>_______________________________________________ >> freebsd-stable@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > Dan > -- > Dan Mack > mack@macktronics.com > > > > > >
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