On Mon, Feb 12, 2018 at 9:45 AM, Kris Moore <k...@ixsystems.com> wrote:
> On 02/12/2018 11:31, Warner Losh wrote: > > > > On Mon, Feb 12, 2018 at 9:26 AM, Kris Moore <k...@ixsystems.com> 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 >> > _______________________________________________ >> > email@example.com 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 _______________________________________________ firstname.lastname@example.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"