Bug 133670

Summary: sensors-detect does not use devfs
Product: [Fedora] Fedora Reporter: Adam Wiggins <hiro>
Component: lm_sensorsAssignee: Phil Knirsch <pknirsch>
Status: CLOSED RAWHIDE QA Contact: David Lawrence <dkl>
Severity: medium Docs Contact:
Priority: medium    
Version: 3CC: rvokal
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: lm_sensors-2.8.7-2 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2004-10-14 14:06:56 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On:    
Bug Blocks: 123268    

Description Adam Wiggins 2004-09-26 00:26:31 UTC
Running sensors-detect produces the error: 
 
No i2c device files found. Use prog/mkdev/mkdev.sh to create them. 
 
I debugged the script and noticed that it was not setting $use_devfs 
even though it is my understanding that FC3 uses it.  It seems to be 
scanning /proc/mounts for the string "devfs" but mine does not 
contain it, as follows: 
 
rootfs / rootfs rw 0 0 
/proc /proc proc rw,nodiratime 0 0 
none /dev tmpfs rw 0 0 
/dev/root / ext3 rw 0 0 
none /dev tmpfs rw 0 0 
none /selinux selinuxfs rw 0 0 
/proc /proc proc rw,nodiratime 0 0 
/proc/bus/usb /proc/bus/usb usbfs rw 0 0 
/sys /sys sysfs rw 0 0 
none /dev/pts devpts rw 0 0 
none /dev/shm tmpfs rw 0 0 
/dev/hda3 /home ext3 rw 0 0 
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0 
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0 
nfsd /proc/fs/nfsd nfsd rw 0 0 
 
I modifed the script by adding inserting $use_devfs = 1; at line 
1786, and then it worked. 
 
Side comment: this is my first time using lm_sensors, but I was 
surprised how difficult it was to set up.  I guess by the old time 
do-it-yourself Linux standards it's easy (run a few scripts, press 
enter a lot at a bunch of questions I don't really understand, 
cut-n-paste some text into a file) but by the new, 
everything-just-works standard that Fedora and other modern distros 
use it seems like a lot of busywork.  Shouldn't sensors-detect run at 
install time, answering all the questions with their defaults 
automatically, and setting the appropriate modules to load?  Or at 
the very least, have an /etc/init.d/lm_sensors script which has an 
"init" option that does all of this.