LPIC-1

Linux Professional Institute

I’ve finished studying for the first of two exams for the LPIC-1 certification, and I have found some exam questions (about 600 of them), and have started to go through them.

The first thing that struck me about these questions is either I’ve not been studying all the topics, or some topics have been removed out of the exam. For example, some of the questions reference LILO, but according to the LPI page on the 101 exam, there’s no mention of LILO (but there is mention of Grub 2 and Grub Legacy). Then again LILO and Grub Legacy are quite limited by today’s standards, so it could be that they really are removed out of the exam. Guess I’ll have to take that chance.

Memory

Had a very eventful weekend, and my entire Sunday was taking up trying to figure out a weird symptom on my linux installation.

In the weeks leading up to today, I used to get strange behaviour from my Fedora box. The behaviour resulting in an error being detected by the ABRT tool, regarding a null reference. Sunday, my laptop conked out and refused to startup. I tried reinstalling Fedora, Debian, Mint, openSUSE, and even OpenMandriva — none of them could complete the installation. They either failed with error part way through, or hung completely.

I decided to try installing Windows XP over everything. That failed with an IRQ LESS THAN OR EQUAL TO blue screen. Then I tried Windows 7. That installation succeeded, and I started running updates. Then it blue screened me again. This time MEMORY_MANAGEMENT was the message. Hmmm. So, could it be that one of my memory chips was dodgy? That would account for why it was intermittent. I have 2x 2GB chips in my laptop, so I took both out and rebooted. No splash screen. Good. That’s expected.

Put in one of the chips. Booted, BIOS showed 2GB. Good, that’s OK.

Took it out and put in the other 2GB. No splash screen. Looks like that’s the dodgy one. I dug out my 1GB from when I got my laptop originally, and put that back into the other slot, so I get a 3GB installation. Checked boot. Splash screen displayed. Good. So I then ran a BIOS memory check, and all 3GB passed.

So then I decided, maybe I should try doing a restore, in case the dodgy memory was the cause of my failure to restore previously. It worked fine, so now I’m back up with my previous setup. :D

Cause: Faulty 2GB memory

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