Date: Tue, 2 Jun 2009 22:55:43 +0300 From: Dan Naumov <dan.naumov@gmail.com> To: Zaphod Beeblebrox <zbeeble@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: ZFS NAS configuration question Message-ID: <cf9b1ee00906021255j340a90a1pe041044d7fdffb26@mail.gmail.com> In-Reply-To: <cf9b1ee00906021239t17d25cbcx4affa4416b9ad783@mail.gmail.com> References: <cf9b1ee00905301141t1945c053x43ce915b7085326e@mail.gmail.com> <8B50CE3F-FCC5-42D6-8FFE-591178F3DFB6@ish.com.au> <5f67a8c40906021147h48bc1c36y5de42fdc0d18677e@mail.gmail.com> <cf9b1ee00906021239t17d25cbcx4affa4416b9ad783@mail.gmail.com>
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A little more info for the (perhaps) curious: Managing Multiple Boot Environments: http://dlc.sun.com/osol/docs/content/2009.06/getstart/bootenv.html#bootenvmgr Introduction to Boot Environments: http://dlc.sun.com/osol/docs/content/2009.06/snapupgrade/index.html - Dan Naumov On Tue, Jun 2, 2009 at 10:39 PM, Dan Naumov <dan.naumov@gmail.com> wrote: > > This reminds me. I was reading the release and upgrade notes of OpenSolaris 2009.6 and noted one thing about upgrading from a previous version to the new one:: > > When you pick the "upgrade OS" option in the OpenSolaris installer, it will check if you are using a ZFS root partition and if you do, it intelligently suggests to take a current snapshot of the root filesystem. After you finish the upgrade and do a reboot, the boot menu offers you the option of booting the new upgraded version of the OS or alternatively _booting from the snapshot taken by the upgrade installation procedure_. > > Reading that made me pause for a second and made me go "WOW", this is how UNIX system upgrades should be done. Any hope of us lowly users ever seeing something like this implemented in FreeBSD? :) > > - Dan Naumov > > > > > > On Tue, Jun 2, 2009 at 9:47 PM, Zaphod Beeblebrox <zbeeble@gmail.com> wrote: >> >> >> The system boots from a pair of drives in a gmirror. Mot because you can't boot from ZFS, but because it's just so darn stable (and it predates the use of ZFS). >> >> Really there are two camps here --- booting from ZFS is the use of ZFS as the machine's own filesystem. This is one goal of ZFS that is somewhat imperfect on FreeBSD at the momment. ZFS file servers are another goal where booting from ZFS is not really required and only marginally beneficial. >> >> >
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