[gentoo-dev] handling of usb in init scripts

[gentoo-dev] handling of usb in init scripts

[scott worley]

Hi,

Running rc6-r12.  I'm no init expert but it appears the localmount 
script assumes usbcore support is compiled, not modularized.  I rebuilt 
the kernel will all usb as modules so /proc/bus/usb does not exist until 
the usbcore module is loaded, therefore mounting of usbdevfs fails.  I 
can change localmount to load usbcore but in the general case the script 
needs to detect whether usbcore is modularized or not so no error is 
generated by trying to load a module which doesn't exist.  Should this 
be done in localmount or in the script which mounts the root filesystem r/w?

thanks,
scott worley
folokai@earthlink.net

Re: [gentoo-dev] handling of usb in init scripts

[Daniel Robbins]

[-- Attachment #1: Type: text/plain, Size: 894 bytes --]

On Wed, Sep 19, 2001 at 01:01:45PM -0700, scott worley wrote:
> Hi,
> 
> Running rc6-r12.  I'm no init expert but it appears the localmount 
> script assumes usbcore support is compiled, not modularized.  I rebuilt 
> the kernel will all usb as modules so /proc/bus/usb does not exist until 
> the usbcore module is loaded, therefore mounting of usbdevfs fails.  I 
> can change localmount to load usbcore but in the general case the script 
> needs to detect whether usbcore is modularized or not so no error is 
> generated by trying to load a module which doesn't exist.  Should this 
> be done in localmount or in the script which mounts the root filesystem r/w?

See if this new localmount script works for you:
(attached)  Let me know if it does.

Best Regards,

-- 
Daniel Robbins					<drobbins@gentoo.org>
Chief Architect/President			http://www.gentoo.org 
Gentoo Technologies, Inc.			

[-- Attachment #2: localmount --]
[-- Type: text/plain, Size: 624 bytes --]

#!/sbin/runscript

depend() {
	need checkfs
}

start() {
	# Mount local filesystems in /etc/fstab.
	ebegin "Mounting local filesystems"
	mount -at nonfs,noproc,noncpfs,nosmbfs,noshm  
	eend $? 
	if [ -z "`grep usbdevfs /proc/filesystems`" ]
	then
		modprobe usbcore
	fi
	if [ -n "`grep usbdevfs /proc/filesystems`" ] && [ -e /proc/bus/usb ] && [ ! -e /proc/bus/usb/devices ] 
	then
		ebegin "Mounting USB device filesystem"
		mount -t usbdevfs usbdevfs /proc/bus/usb
		eend $?
	fi
	#swap on loopback devices, and other weirdnesses
	ebegin "Activating (possibly) more swap"
	/sbin/swapon -a >/dev/null 2>&1
	eend	
	return
}

Re: [gentoo-dev] handling of usb in init scripts

[scott worley]

Daniel Robbins wrote:

>On Wed, Sep 19, 2001 at 01:01:45PM -0700, scott worley wrote:
>
>>Hi,
>>
>>Running rc6-r12.  I'm no init expert but it appears the localmount 
>>script assumes usbcore support is compiled, not modularized.  I rebuilt 
>>the kernel will all usb as modules so /proc/bus/usb does not exist until 
>>the usbcore module is loaded, therefore mounting of usbdevfs fails.  I 
>>can change localmount to load usbcore but in the general case the script 
>>needs to detect whether usbcore is modularized or not so no error is 
>>generated by trying to load a module which doesn't exist.  Should this 
>>be done in localmount or in the script which mounts the root filesystem r/w?
>>
>
>See if this new localmount script works for you:
>(attached)  Let me know if it does.
>
>Best Regards,
>
>
>------------------------------------------------------------------------
>
>#!/sbin/runscript
>
>depend() {
>	need checkfs
>}
>
>start() {
>	# Mount local filesystems in /etc/fstab.
>	ebegin "Mounting local filesystems"
>	mount -at nonfs,noproc,noncpfs,nosmbfs,noshm  
>	eend $? 
>	if [ -z "`grep usbdevfs /proc/filesystems`" ]
>	then
>		modprobe usbcore
>	fi
>	if [ -n "`grep usbdevfs /proc/filesystems`" ] && [ -e /proc/bus/usb ] && [ ! -e /proc/bus/usb/devices ] 
>	then
>		ebegin "Mounting USB device filesystem"
>		mount -t usbdevfs usbdevfs /proc/bus/usb
>		eend $?
>	fi
>	#swap on loopback devices, and other weirdnesses
>	ebegin "Activating (possibly) more swap"
>	/sbin/swapon -a >/dev/null 2>&1
>	eend	
>	return
>}
>
Daniel,

It loads the usb module okay but the error message I'm seeing is because 
of the usbdevfs entry in /etc/fstab.  Once I commented that fstab entry 
out then the init was flawless.

I added usb-ohci and printer to /etc/modules and the system found the 
usb printer.

Thanks,
scott worley
folokai@earthlink.net