[oi-dev] Filesystems that both Unix and Linux can read

[Stephan Althaus]

On 8/17/25 02:08, Bob Friesenhahn wrote:
> If you are able to create the original zfs pool and filesystem format 
> supported by Solaris 10 or OpenSolaris (before feature flags), then 
> that should be a useful baseline which should work for Solaris, 
> Illumos, FreeBSD, and Linux. That is provided that the OpenZFS 
> implementations are respectful and do not automatically upgrade the 
> pool version, or veer outside the bounds of the original 
> specification. OpenSolaris and Illumos introduced the original feature 
> flags so many of the feature flags should work with derivative zfs 
> implementations.
>
> There is no substitute for testing!
>
> Bob
>
>
> On Sat, Aug 16, 2025, 6:22 PM Atiq Rahman <atiqcx at gmail.com> wrote:
>
>     Hi,
>     A file system related generic question:
>
>     I am looking to keep one of my GPT Partitions on my disk to be a
>     file system that both Illumos (Solaris) / FreeBSD and Linux can
>     read. This will be primarily to store data. I know there's vfat
>     (fat32). Wanna know if there's anything better (non-MSFTish) out
>     there.
>
>     Other than exfat, fat32 what else do we have?
>
>     I started using openzfs (which is at version 2.3.3 rn) on linux.
>     However, there's probably a version difference with Illumos/OI.
>     Since, I couldn't complete the OI setup on my machine yet I don't
>     know what version of zfs we are using on OI. I am not quite sure
>     if zfs will be a viable option due to lack of compatible versions
>     (openzfs on linux and ZFS on illumos).
>
>
>     Best!
>
>     Atiq
>
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Hi!

Yes, if you use the "-d" option with zpool create, all of illumos, 
Solaris 10+, BSD, Linux with installed ZFS support can read/write to it.

You are able to enable additional features one by one, whilst checking 
if the features are available to all of you favorite OS.

BTDT.

BTW, i've tried a ZFS Package for Windows 1-2 years ago, that worked in 
my test case..
https://openzfsonwindows.org/

For my camera sd card i use EXFAT, there's a pkg on OI available (built 
from https://github.com/relan/exfat.git - uses libFUSE)


Regards,

Stephan
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