Date: Fri, 22 Feb 2019 08:59:10 -0700 From: Ian Lepore <ian@freebsd.org> To: Stefan Parvu <sparvu@kronometrix.org>, freebsd-arm@freebsd.org Subject: Re: RBPI3B+ FreeBSD 12 ZFS Message-ID: <facfaeae8cef0351b91194ed0b7e30345139e668.camel@freebsd.org> In-Reply-To: <5D976A97-9800-4A9F-A155-F3BD998AFB4C@kronometrix.org> References: <E387BB48-540D-4F5C-BD4D-2BF410108219@kronometrix.org> <a0239ad1-5b98-1149-1d14-966ed8670e79@denninger.net> <5D976A97-9800-4A9F-A155-F3BD998AFB4C@kronometrix.org>
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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@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@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@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@denninger.net <mailto:karl@denninger.net> > > /The Market Ticker/ > > /[S/MIME encrypted email preferred]/ > > _______________________________________________ > freebsd-arm@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org > "
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