Date: Wed, 23 Sep 2015 23:25:20 +0200 From: Edward Tomasz =?utf-8?Q?Napiera=C5=82a?= <trasz@freebsd.org> To: John Nielsen <lists@jnielsen.net> Cc: freebsd-current Current <freebsd-current@freebsd.org>, aoyama@peach.ne.jp, Yonas Yanfa <yonas@fizk.net> Subject: Re: Add isboot iSCSI boot driver to FreeBSD Message-ID: <20150923212520.GA7390@brick> In-Reply-To: <5B296016-F14D-48A9-8DC6-0D8EA28AE891@jnielsen.net> References: <56025EEE.50404@fizk.net> <5B296016-F14D-48A9-8DC6-0D8EA28AE891@jnielsen.net>
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On 0923T0916, John Nielsen wrote: > On Sep 23, 2015, at 2:12 AM, Yonas Yanfa <yonas@fizk.net> wrote: > > > isboot is a iSCSI boot driver written by Daisuke Aoyama that allows you to boot your root partition using iSCSI. > [,,,] > > This was first announced way back in June, 2010: > > > > https://lists.freebsd.org/pipermail/freebsd-scsi/2010-June/004425.html > > > > I've tested the current version (v0.2.10) and it works with FreeBSD 10.2 booting a ZFS on root installation: > > > > http://www.peach.ne.jp/archives/isboot/isboot-0.2.10.tar.gz > > > > I've used iSCSI boot with Ubuntu Server for a while and it's been very useful. I'm looking forward to FreeBSD having the same capability built-in. > > +1. I have used this module in the past and it is extremely useful. Thanks for the pointer, I wasn’t aware it had been updated for FreeBSD 10.x so recently. I’ve also wondered why this is not part of FreeBSD by default. > > Aoyama-san, do you have any objection to this code being included in FreeBSD? If not, can you formally assign it a BSD or other friendly license? Thank you again for the work! > > Trasz (or anyone), is there other work to support iSCSI booting and/or IBFT on FreeBSD? Anything else isboot might conflict with? Any problems with integrating the code or with the code itself? The basic problem with isboot is that it only works with the old iSCSI initiator, which is now marked obsolete. AFAIK there is no ready solution that works with the new one - however, it should be possible to use upcoming reroot support to achieve this: boot with a temporary rootfs, mounted from a ramdisk preloaded by loader(8), setup an iSCSI session, and then replace the temporary rootfs with the real one, mounted over iSCSI.
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