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Thursday, May 20th, 2004

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Fan speed monitoring/control
I'm building a 1U linux server to be hosted in a place where I won't have physical access to the box. Since it's a 1U server, it's going to have 6+ small fans inside. Seeing as I won't have physical access, I'd like to be able to monitor the life of all the fans as well as control their speed. Does anyone know of a PCI, USB, or serial device that will let you connect a bunch of 3-pin fan headers to allow you to monitor and control fan speed? I haven't been able to find ANYTHING, short of built in solutions on motherboards which have a max of ~4 fans for monitoring.

Apple's 1U G4 server comes with a large bank of fans. When one fan dies, the others speed up to compensate. I'd like to build a system capable of this. (Although I'd just do the fan monitoring with mrtg and increase fan speed manually if I needed to.)

Thanks for the help!
From a job listing for Harvard University:

"BS/BA or equivalent experience. At least 3 years experience with systems administration in production environment. Experience with Java Application Servers, Web Servers and a thorough understanding of Windows networking. Ability to use a scripting language such as perl is necessary; basic abilities in Java and PHP, as well as Lynix knowledge also helpful. Individual should be organized and able to work and learn independently. While not "on call", some availability for weekend or evening installs also necessary."

Hehe, Lynix...obviously I'm not the only one who needs Lynix knowledge. ; )
Which Linux?
Hi, I use both Mac and Windows, hence I use both PowerPC and x86 processors. I'd like to give Linux a try, but I don't know which Linux is best. Also, is all Linux free? What's the deal.

By the way, my first choice would be a PowerPC Linux that won't mess up anything on my Mac.

What are my options? Keep in mind I just want to try it out.
partitioning scheme...
I am about to reformat my computer now that I've learned a lot about linux and gentoo specifically. I only have linux on my laptop at present, it was to force me to learn how to use and configure everything, and now that I've done that (with nearly everything....) I want to reformat to a dual boot, since there are a couple things I 'need' windows for.

So the purpose of this post, to ask about a specific partitioning scheme...

/dev/hda1: /boot ~ 64MB (Reiser FS)
/dev/hda2: linux swap ~ 1024MB
/dev/hda3: / ~ 10GB (Reiser FS)
/dev/hda4: C:\ ~ 3GB (NTFS or FAT32)
/dev/hda5: E:\ and /mnt/media {however it's referred to when you mount a foreign partition, calling the directory 'media'} ~ 45GB (NTFS or FAT32)

The goal here is to have the two OSs and a shared partition with all my mp3s, videos, etc (as if that isn't blatently obvious by the layout...). Does this all look feasible and functional?

My poke at what the fstab file would be...

/dev/hda1 /boot reiserfs noauto,noatime,notail 1 2
/dev/hda3 / reiserfs noatime 0 1
/dev/hda2 none swap sw 0 0
/dev/hda4 *no clue* NTFS noauto 0 0
/dev/hda5 /media NTFS noauto 0 0
/dev/cdroms/cdrom0 /mnt/cdrom auto noauto,users 0 0
/dev/fd0 /mnt/floppy auto noauto,users 0 0

none /proc proc defaults 0 0

none /dev/shm tmpfs defaults 0 0

I'm just reading more about the fstab file, so I'm sure I can figure that out, I would just like some personal input here, have many of you done something similar? What worked for you?!

Secondly, I am/would be using grub, and when I attempted a dual boot last time, I screwed up and installed it in the mbr when windows was in there, then chainloading didn't work and I couldn't get windows up, but this time, windows won't be on the first partition, so that shouldn't be a problem...I don't think. I'm wondering about the order to install the OSs. Should I go through with windows first, then load linux? Or the other way around? I know it was somewhat easier with lilo, but I like grub now that I've used it, and want to continue with it. Any things to keep in mind for those who know or have done it before?

Now for some ad hoc questions...
I've looked through the gentoo forums and elsewhere online, but still can't seem to get DRI working for my ATi Radeon IGP 340M, even though I built the support into the kernel [2.6.5-gentoo-r1](could that be the problem???), anyone go through this? I've tried using emerge for the ati drivers and extras, I've tried the long (like 25 page) tutorial on the gentoo forums, and still haven't had success.

What's the difference between the two ebuilds mozilla-firefox-bin and mozilla-firefox (other than the vast difference in size...)?

When I compile the kernel with certain modules how do I know what names to put into the /etc/modules.autoload.d/kernel-2.6 file?

Is there a 'harddrake' (I had Mandrake for a very short while) sort of GUI for gnome?

I've basically been using linux (and gentoo) for 3 weeks now, so I'm still fuzzy on a lot of the details, but I have the broad scope of what it's all about and how it works and functions/where everything is and is supposed to go.

Thank you beforehand for any responses...hopefully in a short while I'll be the one helping out here rather than asking questions.

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