ripley - Developer IT

How to revert to "last known good configuration"

- by Ripley

Hi Guys. I failed to install ubuntu 10.04 with WUBI, for some reason it's showing me the root partion is not defined. I'm bored to fight with it so I just removed ubuntu in windows. However this installation made my original Windows XP cripple, a normal boot will end up with a blue screen, error code 7E, I'm still able to boot with the 'last known good configuration' tho. My understanding is booting like this will recover things and I'm supposed to be good when reboot, while this is not the case for me, I have to choose the 'boot from last known good configuration' each and every time to work around the blue screen. Could you suggest how could I resolve this? I feel it's foolish having to waste 10 more seconds each time starting the OS.

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How to revert to "last known good configuration"

- by Ripley

Hi Guys. I failed to install ubuntu 10.04 with WUBI, for some reason it's showing me the root partion is not defined. I'm bored to fight with it so I just removed ubuntu in windows. However this installation made my original Windows XP cripple, a normal boot will end up with a blue screen, error code 7E, I'm still able to boot with the 'last known good configuration' tho. My understanding is booting like this will recover things and I'm supposed to be good when reboot, while this is not the case for me, I have to choose the 'boot from last known good configuration' each and every time to work around the blue screen. Could you suggest how could I resolve this? I feel it's foolish having to waste 10 more seconds each time starting the OS.

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PHP Preg_replace after a specific amount of characters with a conditional

- by Marc Ripley

I've been working on this for a bit, but my regex is weak. I need to check to see if a number is a whole number (single digit) and append a ".001" to it if so. The problem is, it's in the middle of a line with values separated by commas. MATERIALS,1,1,9999;1 4PL1 PB_Mel,,1,6,0.173,0.173,0.375,0,0.375,0,0,0,0,2,0,1,1 Needs to be MATERIALS,1,1,9999;1 4PL1 PB_Mel,,1.001,6,0.173,0.173,0.375,0,0.375,0,0,0,0,2,0,1,1 The line must start with "MATERIALS". There are more than one MATERIALS lines. The value will always be after 5 commas. I was trying something like this to even replace the number, but I don't think the approach is quite right: $stripped = preg_replace('/(MATERIALS)(,.*?){4}(,\d+?),/', '\2,', $stripped); I tried going through a preg_match_all for if process, to at least get the conditional working, but I still have to replace the lines. for($i=0;$i<sizeof($materialsLines[0]);$i++) { $section = explode(",",$materialsLines[0][$i]); if (strlen($section[5]) == 1) { $section[5] .= ".001"; } $materialsLines[0][$i] = implode(",",$section); }

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Is there a reasonable way to attach new path to PATH in bashrc?

- by Ripley

Guys I constantly need to attach new paths to the PATH environment variable in .bashrc, like below: export PATH=/usr/local/bin:$PATH Then to make it take effect, I always do 'source ~/.bashrc' or '. ~/.bashrc', while I found one shortcoming of doing so which make me uncomfortable. If I keep doing so, the PATH will getting longer and longer with many duplicated entries, for example in the previous command, if I source it twice, the value of PATH will be PATH=/usr/local/bin:/usr/local/bin:/usr/local/bin:$PATH(<-the original path). Is there a more decent way to attach new path to PATH in bashrc without making it ugly?

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Avatar (spoiler alert!)

- by Dave Yasko

This past weekend we finally saw “Avatar,” or as I like to call it “Dances with Smurfs.” It was rather light on the story, heavy on the message, and incredibly well done. The eye for detail is what blew me away, especially the visual distortion (presumably due to density) when the two atmospheres mixed. The only thing I thought they might have missed was why so many (presumably) mammals had 6 appendages (4 arms + 2 legs) and breathed through passages near their clavicles, but the Na’vi (sp?) didn’t have/do either. Also, James Cameron just loves to telegraph upcoming events: Riding the big red bird thing has only happened 5 times before – Sully is on the job. The tree is going to download dying Ripley to her avatar body – Sully is going to do that too. I’ve seen worse foreshadowing, but not in a long time. I give it 4 Papa Smurfs out of 5.

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System Information (msinfo32.exe) Can't Collect Information

- by ptanne

I have Windows XP Pro, service pack 1, IE 6 and 32GB of free space, 75GB total. I have had nothing but trouble after trying to install service pack 2 even though I used System Restore. The installation was incomplete and my computer has never been the same. I attempted to install sp2 four or five times and sp3 once, always with the same result. I've tried reinstalling XP Pro but that didn't fix the problem. My XP Pro disk now has a scratch on it and refuses to work. Dell would not replace it stating that my computer was out of warranty. I'm currently trying Reimage which is supposed to return a computer to the original configuration and replace missing or damaged files. Believe it or not, Ripley, it stops in the middle of the operation and, so far, the Reimage techs haven't been able to figure out why. Of the many problems that I still have is that System Information can't collect information. The Help and Support sections that display system info also don't work. Is there some way that I can fix this? I can't afford to throw my computer away, yet. Thank you for listening, Pam Galvin

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How can a test script inform R CMD check that it should emit a custom message?

- by mariotomo

I'm writing a R package (delftfews) here at office. we are using svUnit for unit testing. our process for describing new functionality: we define new unit tests, initially marked as DEACTIVATED; one block of tests at a time we activate them and implement the function described by the tests. almost all the time we have a small amount of DEACTIVATED tests, relative to functions that might be dropped or will be implemented. my problem/question is: can I alter the doSvUnit.R so that R CMD check pkg emits a NOTE (i.e. a custom message "NOTE" instead of "OK") in case there are DEACTIVATED tests? as of now, we see only that the active tests don't give error: . . * checking for unstated dependencies in tests ... OK * checking tests ... Running ‘doSvUnit.R’ OK * checking PDF version of manual ... OK which is all right if all tests succeed, but less all right if there are skipped tests and definitely wrong if there are failing tests. In this case, I'd actually like to see a NOTE or a WARNING like the following: . . * checking for unstated dependencies in tests ... OK * checking tests ... Running ‘doSvUnit.R’ NOTE 6 test(s) were skipped. WARNING 1 test(s) are failing. * checking PDF version of manual ... OK As of now, we have to open the doSvUnit.Rout to check the real test results. I contacted two of the maintainers at r-forge and CRAN and they pointed me to the sources of R, in particular the testing.R script. if I understand it correctly, to answer this question we need patching the tools package: scripts in the tests directory are called using a system call, output (stdout and stderr) go to one single file, there are two possible outcomes: ok or not ok, so I opened a change request on R, proposing something like bit-coding the return status, bit-0 for ERROR (as it is now), bit-1 for WARNING, bit-2 for NOTE. with my modification, it would be easy producing this output: . . * checking for unstated dependencies in tests ... OK * checking tests ... Running ‘doSvUnit.R’ NOTE - please check doSvUnit.Rout. WARNING - please check doSvUnit.Rout. * checking PDF version of manual ... OK Brian Ripley replied "There are however several packages with properly written unit tests that do signal as required. Please do take this discussion elsewhere: R-bugs is not the place to ask questions." and closed the change request. anybody has hints?

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