From owner-freebsd-current@freebsd.org Mon Feb 12 16:51:06 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C4300F077A1 for ; Mon, 12 Feb 2018 16:51:06 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-io0-x22f.google.com (mail-io0-x22f.google.com [IPv6:2607:f8b0:4001:c06::22f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 514C07E774 for ; Mon, 12 Feb 2018 16:51:06 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-io0-x22f.google.com with SMTP id t22so17966916ioa.7 for ; Mon, 12 Feb 2018 08:51:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=0Y9XDBvh62la9h4zhkRiTA7wGnppDGKZ/B9XSwH9JG8=; b=2DvujFpcl8evopjYENM74AM1PxyukqyU350Q2WZdMh+1y3L9Zhwaq+OhmqGiZW2013 0GILnKhwhdSRX0tbuFgATiIO1AdY7Mbes9kl2QrwfZiO6ko+QIFTj4iLtPXw9nFgZGZF uEkDU20UzyeKoRia57sicS2yEjkkXC+v4lclwXD7gESBY+1GN4/IHRqd0DC1YxvE/AU+ X+g4wxsX4Nw2/rbU5vl9nOABKrZzRhfmPy1zpe8mFlBgtcg9SeX9qkmZrhY0r9cWWHoP qUqpPawyQOY0sJBC5fSVbEocdwDm7Zz55Nk2NhCGIqHND4aNKFVaXDWePXG5udvv1NZU eFtA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=0Y9XDBvh62la9h4zhkRiTA7wGnppDGKZ/B9XSwH9JG8=; b=e6tSS8xk0ZyJGquq0AvYc+bajiLeVCWLSp4ncyuW1XBkIURX5oWRR3jpDFwnMIv+kv WK7hltbXflz4a6Fb2xgTNb9GFa3nRacuttnLMq3SUQFfR9Hkkih3M9lzDoAuny2kz4NH aJEDQSMjFx/fFV5e4XrCKUyLZFYQgKT7XdN39N4BzmHu79pN/5NRi3Gxc7xCZbzF6t41 d3Me2av3lbu5MvqtyVVyU/+VdQBIBpDCexSaEqo/xW2gIBTSbLGyBt5jJd9gE89BamK3 QehrFDjv43+PVIpd2REVkTnoBM7N6ECJpzEObTH6OqxSf7OzwCea1CruTW3bCZenHcGj ncpA== X-Gm-Message-State: APf1xPCQKka0iHof/pDvLJT0IN8tyGSgFkgqfUwGRtJ1biAJ8LYZN5YB bCmMoGC6Jzn55KOgzkNZ2sPO9R90TbzBD3EZqsW22w== X-Google-Smtp-Source: AH8x227NRriBimG1s8LcQ4V09LNnKXEfgYG+bLtKkPGlloIPI9a6hs8f/H+Wpkkw67bobzWU1NrZ4OsSajxgqZD73M4= X-Received: by 10.107.167.69 with SMTP id q66mr13143012ioe.130.1518454265413; Mon, 12 Feb 2018 08:51:05 -0800 (PST) MIME-Version: 1.0 Sender: wlosh@bsdimp.com Received: by 10.79.201.67 with HTTP; Mon, 12 Feb 2018 08:51:04 -0800 (PST) X-Originating-IP: [50.253.99.174] In-Reply-To: <623bcb5c-8ddb-4d38-7826-0c9e344502a3@ixsystems.com> References: <741cdd4f-c4f3-5909-26a9-4cc8f5231eea@ixsystems.com> <623bcb5c-8ddb-4d38-7826-0c9e344502a3@ixsystems.com> From: Warner Losh Date: Mon, 12 Feb 2018 09:51:04 -0700 X-Google-Sender-Auth: v2ShTPkBNfxCyHhi1QKw7loZLnE Message-ID: Subject: Re: LUA boot loader coming very soon To: Kris Moore Cc: FreeBSD Current Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Feb 2018 16:51:07 -0000 On Mon, Feb 12, 2018 at 9:45 AM, Kris Moore wrote: > On 02/12/2018 11:31, Warner Losh wrote: > > > > On Mon, Feb 12, 2018 at 9:26 AM, Kris Moore wrote: > >> On 02/12/2018 10:27, Warner Losh wrote: >> > Greetings, >> > >> > As you may know, the Lua (http://www.lua.org) boot loader has been in >> the >> > works for some time. It started out life as a GSoC in 2014 by Pedro >> Souza >> > mentored by Wojciech A. Koszek. Rui Paulo created a svn project branch >> to >> > try to integrate it. I rebased that effort into a github branch which >> Pedro >> > Arthur fixed up. Over the past year, I've been cleaning up the boot >> loader >> > for other reasons, and found the time was ripe to start integrating this >> > into the tree. However, those integration efforts have taken a while as >> my >> > day-job work on the boot loader took priority. In the mean time, Ed >> Maste >> > and the FreeBSD Foundation funded Zakary Nafziger to enhance the >> original >> > GSoC Lua scripts to bring it closer to parity with the evolution of the >> > FORTH menu system since the GSoC project started. >> > >> > I'm pleased to announce that all these threads of development have >> > converged and I'll be pushing the FreeBSD Lua Loader later today. This >> > loader uses Lua as its scripting language instead of FORTH. While >> > co-existance is planned, the timeline for it is looking to be a few >> weeks >> > and I didn't want to delay pushing this into the tree for that. >> > >> > To try the loader, you'll need to build WITHOUT_FORTH=yes and >> > WITH_LOADER_LUA=yes. Fortunately, you needn't do a full world to do >> this, >> > you can do it in src/stand and install the result (be sure to have the >> > options for both the build and the install). This will replace your >> current >> > /boot/loader that is scripted with FORTH to one that's scripted with >> Lua. >> > It will install the lua scripts in /boot/lua. The boot is scripted with >> > /boot/lua/loader.lua instead of /boot/loader.rc. You are strongly >> advised >> > to create a backup copy of /boot/loader before testing (eg cp >> /boot/loader >> > /boot/loader_forth), since you'll need to boot that from boot2 if >> something >> > goes wrong. I've tested it extensively, though, with userboot.so and >> it's >> > test program, so all the initial kinks of finding the lua scripts, etc >> have >> > been worked out. >> > >> > While it's possible to build all the /boot/loader variants with Lua, >> I've >> > just tested a BIOS booting /boot/loader both with and without menus >> > enabled. I've not tested any of the other variants and the instructions >> for >> > testing some of them may be rather tedious (especially UEFI, if you >> want a >> > simple path to back out). Since there's not been full convergence >> testing, >> > you'll almost certainly find bumps in this system. Also, all the >> > build-system APIs are likely not yet final. >> > >> > I put MFC after a month on the commit. Due to the heroic (dare I say >> > almost crazy) work of Kyle Evans on merging all the revs from -current >> to >> > 11, I'm planning a MFC to 11 after the co-existence issues are hammered >> > out. In 11, FORTH will be the default, and Lua will be built by >> default, >> > but users will have to do something to use it. 12, both FORTH and Lua >> will >> > be built and installed, with Lua as default (barring unforeseen >> > complications). Once the co-existence stuff goes in, I imagine we'll >> make >> > the switch to Lua by default shortly after that. In 13, FORTH will be >> > removed unless there's a really really compelling case made to keep it. >> > >> > So please give it a spin and give me any feedback, documentation updates >> > and/or bug fixes. I'm especially interested in reviews from people that >> > have embedded Lua in other projects or experts in Lua that can improve >> the >> > robustness of the menu code. >> > >> > Warner >> > _______________________________________________ >> > freebsd-current@freebsd.org mailing list >> > https://lists.freebsd.org/mailman/listinfo/freebsd-current >> > To unsubscribe, send any mail to "freebsd-current-unsubscribe@f >> reebsd.org" >> >> Warner & Co, >> >> Great job all! Been wanting this for years, very excited to see it start >> landing :) >> >> One question, if we switch to Lua loader in TrueOS, do you know if the >> ZFS boot-environment menus have been implemented / tested yet? > > > I don't think that they have been implemented yet. I've certainly not > tested them. > > Warner > > Ok, I'll have to mess about with it. I recall there was some library which > created to expose ZFS in limited functionality over to the FORTH code. > That's probably a good place to start and see if that still works and Lua > can probe the pool for BE information. > OK. There's no such functionality in FORTH in the tree today. However, zfs sets a number of env vars that loader.getenv() can get in lua. Warner