why devfs????

r3pek · Posted: Fri Feb 20, 2004 10:30 pm Post subject: why devfs????

hi guys,

i'm wondering why gentoo depend on devfs. this filesystem is beeing deprecated by kernel and it's a gone be changed by udev. is gentoo gona chance to udev too? but what a really wanted to know is why it depends on it.

floam · Posted: Fri Feb 20, 2004 10:54 pm Post subject:

Uh, Gentoo currently works great with udev. I'm using a pure udev (no devices tarball) system, and ALSA and nvidia stuff all works fine. Greg KH has publically thanked the Gentoo guys for being the first distrib to show that it can work. What's your problem?
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Spawn of Lovechild · Posted: Fri Feb 20, 2004 11:25 pm Post subject:

how did you make udev work with devfs, I tried the prior version but it failed.

udev is great though.
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floam · Posted: Sat Feb 21, 2004 1:26 am Post subject:

Lovechild: Not sure what you mean by working "with" devfs (I assume you mean things that expect devfs), but the current udev in portage has a udev.rules set up to generate a very devfs-like /dev/. Works like a charm once you hack up /sbin/rc and halt.sh to get rid of that device tarball crap.
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charlieg · Posted: Sat Feb 21, 2004 2:29 am Post subject:

RaaR · Tux's lil' helper Joined: 24 Jul 2003 Posts: 125

I've been running UDEV since about a month ago with no problems. Next time I have to reboot, I'll get rid of devices.tar.bz2 and hack /sbin/rc halt.sh to get a proper pure-UDEV /dev.

CheshireCat · Guru Joined: 25 Aug 2002 Posts: 572

I installed UDEV to play with it, and set it up to create devices in /udev instead of /dev... only problem I've noticed is that there are still no IDE block devices there, nor any of my device-mapper devs. AFAICT, it looks like the info for these is in /sys, so I'm not really sure why UDEV isn't making device nodes for them :-?

Epyon · l33t Joined: 11 Sep 2003 Posts: 754 Location: NJ, USA

I tried udev but it never created the device nodes for alsa. I never got a chance to fix it either so I just stuck with devfs. I'll try udev again when it matures more.

floam · Posted: Sat Feb 21, 2004 5:37 am Post subject:

Epyon: The ALSA stuff was added not long ago, you should try it again.
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r3pek · Posted: Sat Feb 21, 2004 2:52 pm Post subject:

i didn't really had a problem, just wanted to know how was the suport to udev.

thanks to everyone that posted

ett_gramse_nap · Posted: Sat Feb 21, 2004 4:54 pm Post subject:

floam · Posted: Sat Feb 21, 2004 7:00 pm Post subject:

ett_gramse_nap: By default in Gentoo, you're not really using udev. Every time your computer starts up it will extract a known to work /dev/ into your /dev/. Many are taking this out so that they can have a system where everything is discovered and dynamically created at boot up.
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Decibels · Veteran Joined: 16 Aug 2002 Posts: 1623 Location: U.S.A.

You can actually compile devfs into your kernel still if you want. Then setup your bootloader to choose between devfs or udev.

Have recently added that to the Primer, if you haven't read it lately.
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bssteph · l33t Joined: 26 Feb 2003 Posts: 652 Location: Wisconsin

But things rock so much more without it... or something.

After checking this thread I went and did the changes to make my system entirely udev... and oh man, udev is sexy. Thanks Decibels.