[OpenIndiana-discuss] Installation on a partition (UEFI System)

[Atiq Rahman]

Hi,
Following up again to request confirmation regarding the "partition the
disk" option in the installer.

At present, it’s impractical for me to carry an external storage device
solely for OpenIndiana. With other operating systems, I can safely install
and test them on my internal SSD without risking my existing setup.
Unfortunately, with OI, this specific limitation and uncertainty are
creating unnecessary friction and confusion.

Could you please confirm the current state of EFI support — specifically,
whether it is possible to safely perform a custom-partition installation on
an EFI-only system, using a FreeBSD live USB image with the -d option.

Thank you,
Atiq


On Mon, Aug 4, 2025 at 3:54 PM Atiq Rahman <atiqcx at gmail.com> wrote:

> Hi John,
> That's very helpful..
>
> So, even though I choose "Partition the disk (MBR)" on the text installer,
> it should work fine on my UEFI System after I set up the pool using FreeBSD
> live image.
> Right? I get confused since it mentions "MBR" next to it and my System is
> entirely GPT, no support for legacy / MBR booting at all (no CSM).
>
> Have a smooth Monday,
>
> Atiq
>
>
> On Tue, Jul 15, 2025 at 5:56 AM John D Groenveld via openindiana-discuss <
> openindiana-discuss at openindiana.org> wrote:
>
>> In message <CABC65rOmBY6YmMSB=HQdXq=
>> TDN7d1XR+K8m9-__RQPBzhJZeMQ at mail.gmail.com>
>> , Atiq Rahman writes:
>> >Most likely, I am gonna go with this. It's been a while since I last had
>> a
>> >Solaris machine. I have to figure out the zpool stuff.
>>
>> If you create the pool for OI under FreeBSD, you'll likely need to
>> disable features with the -d option as FreeBSD's ZFS is more feature
>> rich.
>> <URL:
>> https://man.freebsd.org/cgi/man.cgi?query=zpool-create&apropos=0&sektion=0&manpath=FreeBSD+14.3-RELEASE+and+Ports&arch=default&format=html
>> >
>>
>> Once you get OI installed on your OI pool, you can enable features:
>> <URL:https://illumos.org/man/7/zpool-features>
>>
>> John
>> groenveld at acm.org
>>
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>