Re: Bug#263079: udev: missing mknod on ppp

["Alexander E. Patrakov" <patrakov@ums.usu.ru>]

Marco d'Itri wrote:
> On Aug 03, "Alexander E. Patrakov" <patrakov@ums.usu.ru> wrote:
>>Bedause the ppp-generic module is not autoloaded (put it into 
> I know. My fault then, I assumed that the user had RTFM as instructed.
> 
>>The same problem exists for all "non-hardware" modules. It can be solved 
>>by explicitly loading all these non-hardware modules at system startup. 
> 
> I have already seen the code you propose, but it does much more than
> this: it loads almost *all* modules and I'm not inclined to add this to
> the default configuration.

It loads the following:

the modules that it is intended to load (good, see the list below)
old cdrom drivers (bad)
watchdogs (very bad)

> The debian hotplug package, with my patches, is now able to autoload the
> modules for most hardware (notably floppy and rtc too), so the only
> non-autoloaded modules left are ppp_generic and loop.

You are an optimist. The more complete list of undetectable (and 
unloadable with udev) non-hardware modules in Debian Sarge that want to 
create devices is:

microcode
apm
ppdev
nvram
lp
loop
tun
ppp-generic
(not sure if I want to see sg here)

The list is rather short :) so they look like good candidates for 
/etc/modules. Also please solve the snd-pcm-oss-and-the-like problem: 
add the following to modprobe.conf when installing udev:

install snd-pcm modprobe -i snd-pcm ; modprobe snd-pcm-oss ; true
install snd-seq modprobe -i snd-seq ; modprobe snd-seq-oss ; true
install parport modprobe -i parport ; modprobe lp ; modprobe \
	ppdev ; true
install mptbase modprobe -i mptbase ; modprobe mptscsih ; modprobe \
	mptctl ; modprobe mptlan ; true
install scsi-mod modprobe -i scsi-mod ; modprobe sd-mod ; modprobe \
	sr-mod ; true     # sg may be better added here

The problem is that module autoloading due to char-majors breaks with 
udev, and no package wants to load them instead. So you have virtually 
no choice: either put these entries into /etc/modules at udev 
installation (maybe after asking the user a question), or make a new 
package (that contains just these /etc/modules entries) and make the 
udev package recommend it, or just leave the current broken situation.

-- 
Alexander E. Patrakov



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