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CentOS things to mod for VMware server
by Rogelio Bastardo 04 Aug '07

04 Aug '07

I'd like to make a CentOS-based VMware server. Anything I should consider before doing so? (e.g. stuff to disable, kernel tweaks, etc)

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new CentOS 5 install, 'Network is unreachable'
by centos＠swhi.net 04 Aug '07

04 Aug '07

Hi all, I've a new CentOS 5 minimalist install; this will be the name server from my prior thread. I have configured eth0 during setup with the static IP the unit will have when in production. During this setup phase, selinux is set to permissive. Setting up on a different network, I did this: dhclient eth0 and successfully got a private address; I also validated that the resolv.conf file was created by the dhclient-script and it was, accurately pointing to my gateway and listing a domain name server by IP. That's where the fun stops. Even pinging an IP, so as not to rely on name resolution, I get the dreaded 'Network is unreachable' error. Any pointers would be more than appreciated. Thanks in advance, ~Ray

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D-Link DFE-580TX
by Rodrigo Barbosa 04 Aug '07

04 Aug '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Has anyone here had any experience with D-Link's quad-port ethernet NIC, model DFE-580TX ? The people from Mikrotik says it can cause systemwide lockup, but from what I have been reading around, this board seem to work ok. This is the only quad-port NIC I have found with a reasonable price, so I'm seriously considering using it. Comments ? - -- Rodrigo Barbosa "Quid quid Latine dictum sit, altum viditur" "Be excellent to each other ..." - Bill & Ted (Wyld Stallyns) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFGs5JNpdyWzQ5b5ckRAvDJAKC00XZIqvD0EA80oCKklFGY/12RYgCgnP5v gwakIR4lBxgNMbhY1f28b/c= =xS0B -----END PGP SIGNATURE-----

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HotPlug, eSATA, and /media
by Lamar Owen 04 Aug '07

04 Aug '07

Ok, got a quickie. I have an eSATA drive, a 750GB Seagate in an eSATA external enclosure, and a Silicon Image sil3132 ExpressCard controller for my laptop. The disk and controller work great in CentOS 5 (or F7, for that matter), if I specifically mount it. This is not how I want to have to use this drive, however. I want to hotplug it; that is, plug the controller into the laptop, and then plug the drive into the controller, and have it come up just like a USB drive would. It does not currently do that. Anyone here know how to make an eSATA (or a hotplug SATA mobile slide, for that matter) show up in /media, and have all the nice hotplug capabilities USB drives have? That is, KDE brings up the dialog asking what to do with the drive, it can be automounted, etc. Then when going to hot-unplug, I'd use the 'safely remove' context menu entry (just like a USB drive) and it would unmount the drive and unload anything it might need to unload. Anybody have this working? If not, i'm going to figure it out, but didn't want to reinvent the wheel. -- Lamar Owen Chief Information Officer Pisgah Astronomical Research Institute 1 PARI Drive Rosman, NC 28772 (828)862-5554 www.pari.edu

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centos 5 as p2p client
by Dave 04 Aug '07

04 Aug '07

Hello, I'm running centos5. I'm wanting this machine only, none of my other ones, to participate in p2p file sharing, bittorrent, edonkey, maybe other networks. Does anyone have a howto or step by step guide for this? I've installed bittorrent and mldonkey clients, but neither is working, i'm assuming gateway firewall issue, but i've enabled the correct ports, 6881 through 6999 redirecting to the centos box. I've not made any additions to the centos5 firewall. I've got some audio available on bittorrent network i'd like to get, and a .torrent file for it and on edonkey there's an iso any help appreciated. Thanks. Dave.

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Can't print PDFs or PSs in CentOS 5.0
by Mark Hull-Richter 04 Aug '07

04 Aug '07

For some reason, when I try to print any graphic PDF (or a PS file made from said graphic), it kills my Minolta 1100 laser printer, and I have to cancel the job, disable the printer and turn the printer off and on as many times as it takes to clear its buffer of the trash. I'm running CentOS 5.0 and have tried Adobe Acrobat Reader 7.0 for Linux; I have also tried printing the pdf to a file and running it straight through lpr, using the GIMP (although I've NEVER been able to print graphics from there), and even the Image Viewer (which chokes and dies silently while trying to load the file). Any suggestions? I'm using the standard CUPS print system for all of this.... Thanks. mhr

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Strange kernel error message: EDAC GART TLB blahblah..
by Robinson Tiemuqinke 03 Aug '07

03 Aug '07

What does the following EDAC problem means? The machine is a AMD 64bit box running Centos 5. It looks like some problems aroung AMD DRAM Memory controller. But what does it really mean b/c most of my AMD boxes has these messages in /var/log/messages. Please help. ... Aug 1 23:29:40 ccn128 kernel: EDAC MC: Ver: 2.0.1 Jun 12 2007 Aug 1 23:29:40 ccn128 kernel: EDAC MC0: Giving out device to k8_edac Athlon64/Opteron: DEV 0000:00:18.2 Aug 1 23:29:40 ccn128 kernel: EDAC MC1: Giving out device to k8_edac Athlon64/Opteron: DEV 0000:00:19.2 Jul 31 04:02:12 ccn128 kernel: EDAC k8 MC0: GART TLB errorr: transaction type(generic), cache level(generic) Jul 31 04:02:12 ccn128 kernel: EDAC k8 MC0: extended error code: GART error Jul 31 14:13:14 ccn128 kernel: EDAC k8 MC0: GART TLB errorr: transaction type(generic), cache level(generic) Jul 31 14:13:14 ccn128 kernel: EDAC k8 MC0: extended error code: GART error ... [root@ccn128 ~]# lspci -s 0000:00:18.02 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller [root@ccn128 ~]# ____________________________________________________________________________________ Sick sense of humor? Visit Yahoo! TV's Comedy with an Edge to see what's on, when. http://tv.yahoo.com/collections/222

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Intel P35 / quad-core support for HPC applications
by Henry Shiu 03 Aug '07

03 Aug '07

Hello all, Does anyone have experience with CentOS and the Intel P35 or G33 chipset? I've googled about and poked in the CentOS forums, but I've generally found questions without responses. I'm part of a university research group doing CFD (computational fluid dynamics). We're incrementally updating our computing power and have been looking at Intel quad-cores and the P35 or G33 chipset. We're particularly interested in motherboards with DDR2-1066 support. As we're in a production environment, we're more interested in reliability than squeezing out that last fraction of a percent of performance (I'm aware of the inherent contradiction in stating this as we're extending a bit on to the leading edge with this hardware selection). We've patched and rolled custom kernels in the past, but would just as soon not again. Hence, I'd be grateful if you're willing to share your specific experiences with CentOS and P35 or G33 motherboards. I'll compile the responses I get and post them in a consolidated message. Secondarily, I'd like to connect with anyone else doing similar work and/or in similar environments. Currently, we're running a 22-node, diskless (I believe the favored buzzword is now "stateless") cluster of mostly Athlon XP 2500 processors. It's on Centos 3 with Warewulf 2.1.12. Thanks, Henry -- Henry Shiu California Wind Energy Collaborative Department of Mechanical and Aeronautical Engineering University of California, Davis One Shields Avenue Davis, CA 95616-5294 (530) 752-2261 http://cwec.ucdavis.edu/

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KStars on CentOS 4.4?
by Lanny Marcus 03 Aug '07

03 Aug '07

Is there an RPM for this? I think it's in the kdeedu package on the FC6 DVD. My wife is an amateur astronomer and she uses this excellent program. If upstream isn't including it, can I get it and not break my CentOS 4.4 system? (Also, I'd like to migrate her and my daughter to CentOS). TIA, Lanny

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Adaptec 39320A woes
by Michael St. Laurent 03 Aug '07

03 Aug '07

I'm having speed problems with the SCSI card we're using to do tape backup. It seems to be functioning in 16 bit mode and the current thinking is that perhaps it's using a legacy driver instead of the correct one. The Adaptec site has a 'driver' for RHEL5 which I've downloaded and tried to install but it seems to have a problem installing on a CentOS-5 system. [root@hcnas modules]# cd /proc/scsi [root@hcnas scsi]# cat scsi Attached devices: Host: scsi0 Channel: 00 Id: 08 Lun: 00 Vendor: DP Model: BACKPLANE Rev: 1.05 Type: Enclosure ANSI SCSI revision: 05 Host: scsi0 Channel: 02 Id: 00 Lun: 00 Vendor: DELL Model: PERC 5/i Rev: 1.03 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 06 Lun: 00 Vendor: CERTANCE Model: ULTRIUM 2 Rev: 1914 Type: Sequential-Access ANSI SCSI revision: 03 Host: scsi1 Channel: 00 Id: 06 Lun: 01 Vendor: DELL Model: PV-124T Rev: 0043 Type: Medium Changer ANSI SCSI revision: 02 Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: Dell Model: Virtual CDROM Rev: 123 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi4 Channel: 00 Id: 00 Lun: 00 Vendor: Dell Model: Virtual Floppy Rev: 123 Type: Direct-Access ANSI SCSI revision: 02 [root@hcnas scsi]# ll total 0 dr-xr-xr-x 2 root root 0 Aug 3 13:21 aic79xx -r--r--r-- 1 root root 0 Aug 3 13:21 device_info -r--r--r-- 1 root root 0 Aug 3 13:21 scsi dr-xr-xr-x 2 root root 0 Aug 3 13:21 sg dr-xr-xr-x 2 root root 0 Aug 3 13:21 usb-storage [root@hcnas scsi]# cd aic79xx/ [root@hcnas aic79xx]# ll total 0 -rw-r--r-- 1 root root 0 Aug 3 13:09 1 -rw-r--r-- 1 root root 0 Aug 3 13:09 2 [root@hcnas aic79xx]# cat 1 Adaptec AIC79xx driver version: 3.0 Adaptec 39320A Ultra320 SCSI adapter aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 101-133Mhz, 512 SCBs Allocated SCBs: 4, SG List Length: 128 Serial EEPROM: 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x09f4 0x0142 0x2807 0x0010 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0x0430 0xb3f3 Target 0 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 1 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 2 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 3 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 4 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 5 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 6 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Goal: 3.300MB/s transfers Curr: 3.300MB/s transfers Channel A Target 6 Lun 0 Settings Commands Queued 29 Commands Active 0 Command Openings 1 Max Tagged Openings 0 Device Queue Frozen Count 0 Channel A Target 6 Lun 1 Settings Commands Queued 20 Commands Active 0 Command Openings 1 Max Tagged Openings 0 Device Queue Frozen Count 0 Target 7 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 8 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 9 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 10 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 11 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 12 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 13 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 14 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 15 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) [root@hcnas ~]# rpm -e a320raid-3.00.063.5.V580A1-1 [root@hcnas ~]# rpm -ivh a320raid.rhel5.i686.rpm Preparing... ########################################### [100%] 1:a320raid ########################################### [100%] Adaptec adp94xx driver installer - V1.2.5934.0-1 Backing up all modified files to /boot/adp94xx-backup-3 Using GRUB configuration If this is not what you want, rename your /boot/grub/grub.conf file /boot -rw------- 1 root root 2403411 Jul 27 14:47 initrd-2.6.18-8.1.8.el5.img /boot/vmlinuz-2.6.18-8.1.8.el5 /boot/initrd-2.6.18-8.1.8.el5.img CentOS (2.6.18-8.1.8.el5) Configuration [CentOS (2.6.18-8.1.8.el5)] /boot/vmlinuz-2.6.18-8.1.8.el5 -> 2.6.18-8.1.8.el5 ****** PROBLEM ******* No prebuilt module for 2.6.18-8.1.8.el5 i686 ********************** /boot -rw------- 1 root root 2403318 Jul 27 07:39 initrd-2.6.18-8.el5.img /boot/vmlinuz-2.6.18-8.el5 /boot/initrd-2.6.18-8.el5.img CentOS (2.6.18-8.el5) Configuration [CentOS (2.6.18-8.el5)] /boot/vmlinuz-2.6.18-8.el5 -> 2.6.18-8.el5 ****** PROBLEM ******* No prebuilt module for 2.6.18-8.el5 i686 ********************** *************************************** ******** NO MODULES INSTALLED ********* *************************************** Done. error: %post(a320raid-3.00.063.5.V580A1-1.i686) scriptlet failed, exit status 1 [root@hcnas ~]#

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