Hey folks, I'm running RHEL 5.3 on 6 boxes - and on every one of them sensors-detect finds nothing. 5 of them are Sun fire 2250 machines, and 1 is Sunfire 4170. Googling and searching this list does not seem to find anything. When I log into the Sun hardware management interface (web interface) I see that it of course is correctly detecting various temperatures of things. But for some reason Linux is not. Does anyone here have experience in this area and can tell me how to fix this? thanks, -Alan -- ?Don't eat anything you've ever seen advertised on TV? ? ? ? ?? - Michael Pollan, author of "In Defense of Food"
On Wed, 16 Nov 2011, Alan McKay wrote:> Hey folks, > > I'm running RHEL 5.3 on 6 boxes - and on every one of them > sensors-detect finds nothing. > > 5 of them are Sun fire 2250 machines, and 1 is Sunfire 4170. > > Googling and searching this list does not seem to find anything. > > When I log into the Sun hardware management interface (web interface) > I see that it of course is correctly detecting various temperatures of > things. But for some reason Linux is not. > > Does anyone here have experience in this area and can tell me how to > fix this?Definitely running an out of date OS won't help. Updating the kernel to current fixed a similar problem I'd had with no usable sensors being detected. jh
On 11/16/11 6:37 AM, Alan McKay wrote:> When I log into the Sun hardware management interface (web interface) > I see that it of course is correctly detecting various temperatures of > things. But for some reason Linux is not.you may need to use ipmitools rather than lm_sensors. -- john r pierce N 37, W 122 santa cruz ca mid-left coast
On 16/11/11 14:37, Alan McKay wrote:> Hey folks, > > I'm running RHEL 5.3 on 6 boxes - and on every one of them > sensors-detect finds nothing. >What did Red Hat say?> 5 of them are Sun fire 2250 machines, and 1 is Sunfire 4170. > > Googling and searching this list does not seem to find anything. > > When I log into the Sun hardware management interface (web interface) > I see that it of course is correctly detecting various temperatures of > things. But for some reason Linux is not. > > Does anyone here have experience in this area and can tell me how to > fix this? > > thanks, > -Alan >First try updating to the latest release to get the latest kernel / lm_sensors packages. Red Hat did a major overhaul of the hwmon branch in the RHEL-5.5 release, backporting many updated drivers from the upstream kernel ~2.6.26 (dating from somewhere around Aug 2008), but obviously even this updated driver branch is now over 3 years old. What hardware sensors do your servers have? Elrepo.org has some updated kernel drivers for commonly used hardware sensors backported from newer upstream kernels (e.g, 2.6.39, 3.x), but some are reliant on the latest distro kernel (built against a later distro kernel) due to kernel ABI changes, so you'd still need to ideally be running an updated installation.