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<H1>[Mageia-dev] [soft-commits] [2494] Port stage2 to use udev.</H1>
<B>Thierry Vignaud</B>
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TITLE="[Mageia-dev] [soft-commits] [2494] Port stage2 to use udev.">thierry.vignaud at gmail.com
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<I>Tue Dec 20 13:20:25 CET 2011</I>
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<PRE>On 20 December 2011 12:59, Colin Guthrie <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">colin at mageia.org</A>> wrote:
><i> 'Twas brillig, and Thierry Vignaud at 20/12/11 11:42 did gyre and gimble:
</I>>>>>><i> +    # Start up udev and trigger cold plugs
</I>>>>>><i> +    run_program::run("mount", "-t", "devtmpfs", "-o", "mode=0755,nosuid",
</I>>>>>><i> "devtmpfs", "/dev");
</I>>>>>><i> +    mkdir "/dev/pts", 0755;
</I>>>>>><i> +    run_program::run("mount", "-t", "devpts", "-o",
</I>>>>>><i> "gid=5,mode=620,noexec,nosuid", "devpts", "/dev/pts");
</I>>>>>><i> +    mkdir "/dev/shm", 0755;
</I>>><i>
</I>>><i> This one should be better included in stage1 with other /dev stuff IMHO
</I>>><i> See images/make_boot_img
</I>><i>
</I>><i> With my earlier comment about stage1+dracut, I would tend to agree.
</I>><i> Perhaps all this stuff can be in stage1 instead?
</I>
indeed
>>>>><i> +    run_program::run("udevadm", "trigger", "--type=subsystems",
</I>>>>>><i> "--action=add");
</I>>>>>><i> +    run_program::run("udevadm", "trigger", "--type=devices",
</I>>>>>><i> "--action=add");
</I>>><i>
</I>>><i> Since this will forces us to wait, you should either display a "please
</I>>><i> wait dialog"
</I>>><i> or better not run this as we'll only look at block devices quite a lot later
</I>>><i> after accepting license & loading disks modules
</I>><i>
</I>><i> Technically true, although this requires me to have a bit more
</I>><i> understanding of how things work with the installer which I'd ideally
</I>><i> like to avoid!.... :p
</I>
here we initialize the installer then loop over the steps (see
perl-install/install/steps_list.pm):
- choose language
- accepting license
- THEN load hd which will triggers udev to scan for LV or the like
So it's useless & not user friendly to force waiting for LVs here when
we know none will be found
>>><i> Cool, thanks. I'm not a perl-master so feel free to tidy this commit up
</I>>>><i> a bit if you have time, otherwise I'll try and tidy up my mess this
</I>>>><i> evening :)
</I>>><i>
</I>>><i> There's no urgency so it's better if done by you so that
</I>>><i> you eventually became a co maintainer of drakx :-)
</I>><i>
</I>><i> I have a funny feeling that I'm being tricked into something here.... :p
</I>
It's not that hard :-)
>><i> BTW you may eventually include udev in rescue too
</I>>><i> (but only once it's done in stage2)
</I>>><i> See rescue/ && rescue/devices.pl
</I>><i>
</I>><i> Yeah it's needed in rescue too as I think I mentioned in an earlier
</I>><i> email, but this is easier to get working I think.
</I>
BTW if you could look at those LVM/DM bugs in rescue:
<A HREF="https://bugs.mageia.org/buglist.cgi?cmdtype=runnamed&namedcmd=drakx-installer-rescue">https://bugs.mageia.org/buglist.cgi?cmdtype=runnamed&namedcmd=drakx-installer-rescue</A>
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