Subject: Re: Share common code/data across ports?
To: None <current-users@NetBSD.ORG>
From: der Mouse <mouse@Holo.Rodents.Montreal.QC.CA>
Date: 01/08/1997 10:42:57
>> I suggested sharing of major/minor numbers a long time ago. [...]
> Another way (which I prefer) is to eliminate MAKEDEV and let the
> kernel make the device nodes for us, possibly in a special filesystem
> for that purpose, automatically mounted on /dev/.
I really really dislike this.
Why? Because it means the user-level device names are wired into the
kernel. Because it means I can't "ln -s kd ttykd" to fix "ps atkd" on
the sun3 port as a stopgap measure until ps is fixed right. Because it
means I can't "chmod 666 /dev/*sd4*" so that anybody can access the zip
drive. Because it means I can't "chgrp backup /dev/rsd*" so that I can
have a group dedicated to backups to read the disks, instead of having
to use the provided operator group which owns ghod-only-knows what
Or if devfs does support the above, it means the results won't survive
the next reboot.
To me as a sysadmin, this is unacceptable. devfs may be useful,
perhaps; I'd actually prefer to make it part of kernfs (/kern/dev, say)
and then if you really want to use it as your /dev, symlink /dev to
/kern/dev (and create a few things in /kern/dev on the root filesystem,
to be hidden by the kernfs mount, enough things for it to come up far
enough to mount kernfs). Personally, I'd create a database of things
in devfs I don't want in /dev and things I want in /dev even though
devfs doesn't have them, then check /dev against devfs and this list at
boot time, warning of differences but not touching anything.
7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B