Discuss December 2011

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207 participants
173 discussions

HP Smart Array B110i SATA RAID Controller
by Richard Gliebe 02 Dec '11

02 Dec '11

Hello, I'm trying to install CentOS 6.0 64bit on a HP ProLiant ML110 G7 with a HP Smart Array B110i SATA RAID Controller. One logical drive (RAID 1+0) on the RAID Controller is already build. CentOS Installation can't find the logical Drive, but it shows me the zwo physical drives (sda+sdb). After searching the web, I found following hints: http://www.linuxquestions.org/questions/linux-hardware-18/raid-array-not-de… http://linuximagination.blogspot.com/2011/04/centos-installer-wasnt-detecti… OK. Downloaded the file "hpahcisr-1.2.6-7.rhel5.x86_64.dd.gz" and do the dd from another Linux workstation. # dd if=hpahcisr-1.2.6-7.rhel5.x86_64.dd.gz of=/dev/sdb (4Gig USB Stick) starting the CentOS 6.0 64 bit installation from the DVD boot: linux dd After loading the kernel, the installer is asking whether I have driverdisk and asked to indicate which drive (sdc) /dev/sdc is my 4Gig USB Stick. My problem is now, the step "Driver Disk" is failed: Failed to mount driver disk. any hints are very, very welcome. Thanks in advance Richard

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System Time - UTC and Local Time
by Johan Martinez 01 Dec '11

01 Dec '11

I have installed CentOS on a VM by checking 'System Clock uses UTC' option. Later I selected CST time zone. Now the date command shows UTC time with CST timezone: "Thu Dec 1 04:14:39 CST 2011". How do I change system clock to show CST local time? Also, more likely a dumb question but why isn't date command showing UTC here instead of CST? jM

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how to install standard software on systems with heterogeneous hardware?
by Thomas Burns 01 Dec '11

01 Dec '11

I've been thinking about ways to proceed if I need to set up 5 machines with basically identical software but somewhat variable hardware. A simple approach would be to just set up my golden system and clone the disk, but the hardware differences would probably cause problems. One approach that appeals to me is to install minimal centos on the first system, add a few rpms after installation, do my desired config file tweaks, then somehow generate an rpm that depends on all the post-install rpms and contains my custom versions of the config files I tweaked. Then, to set up the other 4 systems, I'd use the kickstart file from the first, then yum localinstall my custom rpm, which would install all the dependencies and tweak all the config files. I assume the centos install would deal with the hardware differences. Does this idea make sense? What happens when two different rpms want to provide the same config file? Are there any other simple alternatives I have overlooked? What is the best practice when setting up identical software on multiple systems with heterogeneous hardware? mahalo, Dave

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Discuss December 2011