Messages in this thread |  | | | Subject | Re: udev and devfs - The final word | | From | (Eric W. Biederman) | | Date | 04 Jan 2004 22:26:37 -0700 |
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viro@parcelfarce.linux.theplanet.co.uk writes:
> On Sun, Jan 04, 2004 at 08:02:20PM -0800, Linus Torvalds wrote: > > Now, we'd probably not want to force the switch, but I do suspect we'll > > have exactly this as a switch in the "Kernel Debugging Config" section. > > Where even _common_ things like disks could end up with per-bootup values. > > Just to verify that every part of the system ends up having it right. > > Then we'd better have a very good idea of the things that are going to > break. Note that right now even late-boot code in kernel itself will > break on that - there are explicit checks for ROOT_DEV==MKDEV(2,0), > all sorts of weird crap deep in the bowels of arch/ppc/*/*, etc.
/sbin/lilo and possibly some of the other bootloaders. Relationships between devices are a challenge to work with. How do you go from a partition to it's actual block device etc. I don't remember how many major numbers lilo has hard coded, I just remember looking at it once and realizing I couldn't think of a better way to accomplish what it was trying to do.
Eric
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