Date: Tue, 31 Jan 2017 12:03:31 +0000 From: krad <kraduk@gmail.com> To: Aristedes Maniatis <ari@ish.com.au> Cc: Freddie Cash <fjwcash@gmail.com>, Gary Palmer <gpalmer@freebsd.org>, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: Boot partition size Message-ID: <CALfReyfwuuN_HQ_8iszwdpLJPCy-LagoeoEEBoXJnZW6sgus6Q@mail.gmail.com> In-Reply-To: <851efa44-0607-231f-0905-8f9c96a36237@ish.com.au> References: <a4cab85a-5e79-c7c1-fbb7-d9cf83cbf556@ish.com.au> <20170129141244.GA63867@in-addr.com> <CAOjFWZ6WRQ5i4OP5ZK89RxM1YpMbVp%2BcOHCSvUyUx0etizUmog@mail.gmail.com> <851efa44-0607-231f-0905-8f9c96a36237@ish.com.au>
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Its worth noting you should also go for GPT layout and have a 100meg or so partition provisioned as well so you can do a uefi boot. Even if you arent going to use it right now. On 30 January 2017 at 03:41, Aristedes Maniatis <ari@ish.com.au> wrote: > On 30/1/17 2:20pm, Freddie Cash wrote: > > And, you may be able to do that on the existing disks, as ZFS now leaves > a MB or two of "slack space" at the end of the device used in the vdev. > This allows for using drives/partitions that are the same size in MB but > have different numbers of sectors. This was an issue on the early ZFS days. > > > > So, you may be able to resize the freebsd-zfs partition by a handful of > KB without actually changing the size of the vdev. > > > Brilliant, thank you. That worked a treat with a new boot size of 256k. > > > Note that this page: https://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/Mirror > needs to be adjusted. This line: > > gpart add -b 34 -s 128k -t freebsd-boot ad0 > > needs to instead be > > gpart add -a 4k -s 512k -t freebsd-boot ad0 > > > I don't have edit rights. Probably someone needs to clean up and merge > many of these pages: https://wiki.freebsd.org/RootOnZFS/ > > > Ari > > > > -- > --------------------------> > Aristedes Maniatis > CEO, ish > https://www.ish.com.au > GPG fingerprint CBFB 84B4 738D 4E87 5E5C 5EFA EF6A 7D2E 3E49 102A > >
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