Messages in this thread | | | Date | Sat, 3 Jan 2004 02:00:10 +0100 | From | "J.A. Magallon" <> | Subject | Re: udev - please help me to understand |
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On 01.02, Greg KH wrote: > On Fri, Jan 02, 2004 at 09:48:36PM +1000, Steve Youngs wrote: > > Hi Greg! > > > > I've been looking at this "udev" thingy and I can't for the life of me > > see why I'd need it. There doesn't appear to be _any_ advantages of > > using udev in my present situation. > > Ok, great. Then don't use it, I'm not forcing you to for 2.6 :) > > > No, I don't use devfs. > > > > I have zero hot-pluggable devices (that might change somewhere in the > > distant future, but for now I don't have any). And never in my wildest > > dreams could I ever imagine running out of device numbers. > > > > Reading through the documentation that I've found about udev, your > > main points seem to be about: > > > > - udev vs devfs > > - running out of device major/minor numbers > > - not having to worry about major/minor numbers > > > > For me, the first point is moot because I don't use devfs. The second > > point is just plain ridiculous, there is just _no_ way that it could > > happen (remember that I'm talking about my own situation). > > If you never have any hotpluggable devices, nor any need to move disks > around in your system, then you don't need udev. >
Don't think so. My first use for udev is a cluster (when bproc works on 2.6 ;)). Or in general diskless booting.
You build your initrd for remote boot. You have two options: - copy a full /dev from a working host (tons of files that make the rd big just to fit all the inodes). - spend a lot of time guessing what is and what is not needed on each node (you can have ata drives, scsi ones, different network cards, different graphics cards...)
I just want to boot with and empty /dev and let udev populate it, even with same device names for different hadrware. And nodes will never hotplug anything.
IE, I want a working and race free devfs, and this is udev.
-- J.A. Magallon <jamagallon()able!es> \ Software is like sex: werewolf!able!es \ It's better when it's free Mandrake Linux release 10.0 (Cooker) for i586 Linux 2.6.1-rc1-jam1 (gcc 3.3.2 (Mandrake Linux 10.0 3.3.2-3mdk)) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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