Date: Sat, 27 Dec 2014 08:27:47 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Dr Josef Karthauser <joe@tao.org.uk> Cc: stable@freebsd.org Subject: Re: Creating a bootable ZFS disk? Message-ID: <alpine.BSF.2.11.1412270824250.63470@wonkity.com> In-Reply-To: <1548B1FF-36E2-4AE4-ADD4-3B8872A9DF55@tao.org.uk> References: <1548B1FF-36E2-4AE4-ADD4-3B8872A9DF55@tao.org.uk>
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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.)
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