Good luck with the exam. I did RHCT and RHCE a couple of years ago and RHCE was tough One curiosity, why scientific rather than centos ?
From: peterboro-boun...@mailman.lug.org.uk [mailto:peterboro-boun...@mailman.lug.org.uk] On Behalf Of Richard Forth Sent: 18 April 2012 23:33 To: Peterborough LUG - No commercial posts Subject: Re: [Peterboro] Kernel Panic in anaconda Scientific Linux INSTALL [fixed] Ok, I have an "interesting" update on this. So the KP I reported below is NOT to do with the second core being started, it just so happened that after I stopped the second core as per a bugzilla report I read somewhere as I slowly went insane, the installer decided randomly to complete. The next problem I encountered was copying a 3.9Gb file from usb to my home area, basically my aim is to build a kvm hypervisor to practice for my RHCSA exam. This explains the 3.9Gb file, being the DVD image of SL6.0 to be used for the vm kicks. about halfway through this file copy i got another kernel panic, which, after a few attempts, actually corrupted the lvm volume forcing me to rekick (again) that failed randomly numerous times so I decided just to test, I'd rekick the box with Mint10 which I knew installed fine previously, that kernel panicked as well....this is ODD...... THE MORAL OF THE STORY Remember what has physically changed (I installed new memory modules) ....<< yeah i forgot that bit.. Took out the new modules, and mint booted fine, no problems, no kernel panics. To test also that it wasnt hard drive related, I created a large file with the follwoing command (dont run this) dd if=/dev/zero of=bigfile bs=1024 count=[replacethiswithverybignumber] I control-C'ed at nearly 9Gig so that was all good, deleted the file "bigfile" after install I shutdown the computer, took out the old GOOD ram, and replaced it with the new BAD ram, but remember I dont know this for sure (yet) its just a theory. I booted into mint's grub menu, and found Memtest86+ I ran that and, so far, as of this writing, it has counted 5 million + errors, every address has failed so far, no passes. Zero. That probably explains the kernel panics now. You wont believe how many rekicks I've done over the last 48 hours on this damn thing, I swear my hair line has receeded a further inch just since yesterday, So in conclusion, Was it actually the second core causing SL6 to blue screen? Probably not. Should you always run Memtest86+ on new memory modules? YES always!! Should you beat a dead horse for 48 hours before realising is probably is actually dead instead of doing something simple like check its pulse, first? Absolutely Do I feel like a pratt? Definately. :) Lol, night folks, hope this was entertaining and informative. - Rich On 18 April 2012 14:26, Richard Forth <richard.fo...@gmail.com<mailto:richard.fo...@gmail.com>> wrote: Hi, Just to warn everyone of an issue in RHEL 6.0 (Scientific Linux 6), where mke2fs on lvm filesystem causes kernel panic, the solution was to turn off one of the cores in bios in a Core2 duo machine. After this, setup finished with no errors, I was also able to turn on the second core after the reboot when installation finished, with no errors. This may or may not be useful but worth putting out there. - Rich ________________________________ CONFIDENTIALITY : This e-mail and any attachments are confidential and may be privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person, use it for any purpose or store or copy the information in any medium.
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