Date: Sat, 27 Dec 2014 17:24:06 +0000 From: Dr Josef Karthauser <joe@tao.org.uk> To: Steven Hartland <killing@multiplay.co.uk> Cc: freebsd-stable@freebsd.org Subject: Re: Creating a bootable ZFS disk? Message-ID: <701A1C89-91BE-4FCC-92C7-67A4418069EB@tao.org.uk> In-Reply-To: <549EE3CC.6060306@multiplay.co.uk> References: <1548B1FF-36E2-4AE4-ADD4-3B8872A9DF55@tao.org.uk> <alpine.BSF.2.11.1412270824250.63470@wonkity.com> <549ed9f7.512f2a0a.5305.7ec5SMTPIN_ADDED_BROKEN@mx.google.com> <CALfReyfq5egUM-YwG4S93BO2oKOsSpibSoDS3gzotqaUF_=iAQ@mail.gmail.com> <549EE3CC.6060306@multiplay.co.uk>
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[-- Attachment #1 --] I did try populating the cache file on the last try, but it didn’t help. I’ll report back when I’ve completed the -a4k test. Joe. On 27 Dec 2014, at 16:52, Steven Hartland <killing@multiplay.co.uk> wrote: > Actually the cache file shouldn't be required for boot any more, so you should be able to remove it. > > I was also under the impression that on 4k drive the alignment should indeed be automatic. > > I'd be interested to know if either of these are not the case as they are things we should look at fixing if not. > > Regards > Steve > > On 27/12/2014 16:34, krad wrote: >> you will probably need to update the zpool.cache as the one on the rootfs >> you copied will have the details of the old pool in. You shouldnt need and >> entries in the loader.conf as all they do is override the bootfs flags much >> like rc.conf.local does to rc.conf entries >> >> On 27 December 2014 at 16:10, Dr Josef Karthauser <joe@karthauser.co.uk> >> wrote: >> >>> Ahha, the 4k alignment is plausible! I thought that that was automatic >>> these days. I'll give it a go. >>> >>> Do I also need to have a zfs pool cache on the root disk? >>> >>> Joe >>> >>> >>> On 27 Dec 2014 at 3:27:47 pm GMT, Warren Block <wblock@wonkity.com> wrote: >>> >>>> On Sat, 27 Dec 2014, Dr Josef Karthauser wrote: >>>> >>>>> I?m trying to create a new ZFS pool from an existing one (the new one >>> is 4k aligned and the old one is legacy 512b). >>>>> But, I can?t get it to boot! Not sure what I?m doing wrong. >>>>> >>>>> I thought I could create the new pool, and use ?zfs send/recv? to copy >>> the existing pool and then boot onto the new disk, but the kernel doesn?t >>> load? :(. >>>>> Does anyone know what I?m doing wrong? >>>>> >>>>> Here?s my recipe: >>>>> >>>>> # gpart create -s gpt diskid/DISK-NEW-DISK >>>>> # gpart add -s 64K -t freebsd-boot diskid/DISK-NEW-DISK >>>>> # gpart add -t 8G freebsd-swap diskid/DISK-NEW-DISK >>>>> # gpart add -t freebsd-zfs diskid/DISK-NEW-DISK >>>>> # gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 >>> diskid/DISK-NEW-DISK >>>> Those partitions are probably not aligned to 4K. Add "-a4k" to the >>> gpart add commands. (Remember that ashift is filesystem block size, not >>> alignment.) >>>> _______________________________________________ >>>> 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 >>> " >>> >>> _______________________________________________ >>> 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" >>> >> _______________________________________________ >> 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" > > _______________________________________________ > 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" > [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQEcBAEBCgAGBQJUnus2AAoJEGdCjs+EVN/YhmIIALCffNzLFeYMhzPfOIBLzk1+ Oi9Wj+n/1afvv9369QBRT6fbCE/fMnI6RLOXNkOtMukJbt9tMgQo1uB8c8UDm0te sg/2H8rDP6gDj3lSjb8fcsYljH0vxD8jmhu5QUTk+BSyANPI7jcpoq5uZrddGFmg /sG+Jg38NgMKO+6b8poqPTYAak1oD8yotQ/DEl41O1Gi4mlh4UoVGmdjd1Q4j2Tp gfolVGdNryBiFbL4bquQZMVs31kZY8JGYDvqJdbjGo3t3VeEADAXuGyk2jnPxQn4 F890ABa4LVjFGiKU7mbS4JPajk+u4hl3O7kmWcxHxgIhScWtLkL0a6Q4PMAgXM0= =V4dn -----END PGP SIGNATURE-----
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