Re: [GIT PATCH] Remove devfs from 2.6.12-git

From: Bill Gatliff
Date: Wed Jun 22 2005 - 21:25:15 EST


It breaks a lot of my embedded setups which have read-only storage only
and thus need /dev on devfs or tmpfs.

Well that's quite a problem. We're certainly causing people such as
yourself to take on quite a lot of work. But on the other hand we do want
the kernel to progress sanely, and that sometimes involves taking things

I don't have enough info to know whether the world would be a better place
if we keep devfs, remove devfs or remove devfs even later on. I don't
think anyone knows, which is why we're taking this little
disable-it-and-see-who-shouts approach.

I would prefer to keep devfs around as well, but most of my embedded systems have enough RAM to put a primitive /dev tree in tmpfs using a linuxrc script at boot. The workarounds for the userland requirements of udev are a little less clear to me, but I'm not sure they're insurmountable yet for anything except the smallest embedded systems, since Busybox appears to have some udev support available now.

I think that devfs and udev appeal to different audiences, hence I don't think you can say that the "world will be a better place" with one or the other. It would be nice to find a way to have the two coexist peacefully...

Case in point. I'm going to udev reluctantly; all my embedded work based on earlier kernels used devfs exclusively.


Bill Gatliff
So what part of:
$ make oldconfig clean dep zImage
do you not understand?

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