RBPI3B+ FreeBSD 12 ZFS

[Ian Lepore]

On Fri, 2019-02-22 at 17:38 +0200, Stefan Parvu wrote:
> I know ZFS would need a decent amount of RAM to start with. So for
> such low sized 
> SBC systems, like Raspberry PI having ZFS for root might be no go.
> 
> What I meant was: how complicated would be right now for FreeBSD 12
> to have an 
> ARM64 RBPI3B+ image image which could use ZFS to boot from a SD Card.
> 
> Stefan Parvu
> sparvu at kronometrix.org
> 
> 

People have run a 512MB beaglebone with zfs on sdcard. It surely wasn't
high performance, and it reported needed some hand-tuning to run at
all, but it worked.

There's a lot of mythology about sdcards and what they can and can't
do, and how supposedly fragile they are.  It's all a bunch of noise you
can safely ignore.  They're slow, but they're plenty reliable.

-- Ian

> 
> > On 22 Feb 2019, at 17.23, Karl Denninger <karl at denninger.net>
> > wrote:
> > 
> > On 2/22/2019 09:07, Stefan Parvu wrote:
> > > Hi,
> > > 
> > > Just curious, would ZFS work on a RBPI3B+ board with 1 GB RAM
> > > only 
> > > using FreeBSD 12 STABLE ? the hardware is 64bit but would it boot
> > > on
> > > 1 GB RAM for its own ARC internal operations ?
> > > 
> > > Thanks,
> > > 
> > > Stefan Parvu
> > > sparvu at kronometrix.org
> > 
> > Are you talking about attempting to mount root off a ZFS filesystem
> > on
> > the SD card or booting it as usual and then loading zfs once
> > running
> > (e.g. to talk to a USB-attached disk)?
> > 
> > I think you'll find that while it might run it's a very bad idea
> > for a
> > whole host of reasons; what purpose do you have in doing this?
> > 
> > -- 
> > Karl Denninger
> > karl at denninger.net <mailto:karl at denninger.net>
> > /The Market Ticker/
> > /[S/MIME encrypted email preferred]/
> 
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