Creating a bootable ZFS disk?
Dr Josef Karthauser
joe at tao.org.uk
Sat Dec 27 16:47:45 UTC 2014
I only have 'zfs_load=“YES”’ in my /boot/loader.conf. I’m hoping the problem is that I missed the ‘-a4k’ on the ‘gpart add’. I’m starting again and will report back whether it now works or not! :).
Joe
On 27 Dec 2014, at 14:55, Steven Hartland <steven at multiplay.co.uk> wrote:
> Replied too quickly there, as your already doing that, however you're changing the name so the likely issue is you didn't update loader.conf
>
> You should just need the following in /boot/loader.conf:
> vfs.root.mountfrom="zfs:copy/ROOT/default "
>
> Regards
> Steve
>
> On 27/12/2014 14:49, Steven Hartland wrote:
>> Unfortunately send / receive doesn't maintain the pool bootfs, so simply setting that should be all you need e.g.
>>
>> zpool set bootfs=tank/root tank
>>
>>
>> On 27/12/2014 14:37, 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
>>>
>>> # zfs create copy /dev/diskid/DISK-NEW-DISKp3
>>> # zfs send -R oldpool at 20141226 | zfs receive -duvF copy
>>> # zpool set bootfs=copy/ROOT/default copy
>>>
>>> That ought to do it, right? But, if I remove all the existing drives and try and boot on just the new drive, it gets nowhere. I see the ‘/‘, but it doesn’t spin and doesn’t time out. :(.
>>>
>>> Any clues would be gratefully received.
>>>
>>> Many thanks,
>>> Joe
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>>
>
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