Re: [bug] /etc/profile: line 30: /dev/null: Permission denied (Was: Re: [PATCH] Remove broken by design and by implementation devtmpfs maintenance disaster)

[Pavel Machek <pavel@ucw.cz>]

Hi!

> > > > > I've reproduced a bug with the following .config options:
> > > > >
> > > > > ??CONFIG_DEVTMPFS=y
> > > > > ??CONFIG_DEVTMPFS_MOUNT=y
> > > > >
> > > > > /dev/null and /dev/zero are not read/writable to ordinary users, 
> > > > > breaking normal bootup and login:
> > > > 
> > > > Udev should run long before some ordinary/non-root user can login, 
> > > > and apply the permissions as it always does. It's known to work on 
> > > > Fedora, SUSE, Ubuntu. What kind of system/environment/setup is that 
> > > > where you see this?
> > > 
> > > I don't know if this is what Ingo does, but I have a few machines 
> > > where I don't run the distro-supplied 'initrd' at all, because it's 
> > > easier to boot without it. The Fedora initrd doesn't allow me to 
> > > sanely set root filesystem parameters without totally rewriting the 
> > > initrd image, which I'm not interested in, for example (they'll take 
> > > effect for the root initrd, not the final root).
> > 
> > Correct: i'm booting raw bzImages, with /dev copied to the real /dev. To 
> > this box udev is mostly an annoyance that slows down my bootup ;-)
> 
> I use non-initrd systems as well, and this option works for me on Gentoo
> and SUSE machines.
> 
> As you are using a very old udev, and the boot infrastructure for udev
> in older Fedora releases was a bit "odd" in places, I would recommend
> not using these options on that machine.  If we need to reword the
> Kconfig help option to make it a bit more clear, do you have a
> suggestion on what we should change?

"no regressions" ?
									Pavel
-- 
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