Boot partition size

[krad]

Are we really that worried about 90-99 MB when we are talking about many TB
drives? Even the entry-mid range SSD are in the region of 256-512 GB these
days?

On 31 January 2017 at 14:35, Warner Losh <imp at bsdimp.com> wrote:

> The UEFI standard suggests something large like 100MB. There are a
> number of firmware updating programs that run as .efi images.  It
> would be prudent to allow more than the bare minimum in case you wind
> up needing them down the line. boot1.efi is likely to grow
> significantly in the future. Maybe not 100x, a 1MB is likely once it
> has all the features it needs. 10MB might be a safe upper bound.
>
> Warner
>
> On Tue, Jan 31, 2017 at 7:00 AM, Andreas Nilsson <andrnils at gmail.com>
> wrote:
> > Well,  100mb might be relevant if you ever want to dual-boot. The
> relevant
> > efi file seems to be < 100k
> >
> > It may go up in size, but I doubt we will see a 100x increase.
> >
> > /A
> >
> > On Tue, Jan 31, 2017 at 1:03 PM, krad <kraduk at gmail.com> wrote:
> >
> >> 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 at 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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