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• Vetting Github Pull requests with Hudson

  - by cdecker

  I've been using Gerrit and Hudson very successfully to test and automatically vote on new checkins in the past and now I'm wondering whether it is possible to set up Hudson so that it'll check Github at regular intervals and looks if there are new Pull Requests available. If yes it should apply the patch and run the unit tests against it, adding a comment to the pull request if no failure is detected. It would certainly reduce the amount of work going into vetting patches/pull requests. Is that possible at all, or should I stick with my Gerrit setup?

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• Free alternatives to vSphere for ESXi (if one exists)

  - by Tim

  Dear All, Am feeling a touch confused and overwhemled. From what I gather even though ESXi is free I will only be able to manage my VMs (create or power on etc) for 60 days unless I buy a licence for vSphere. This is somewhat frustrating. As I am looking for a home lab to practice for various certs I was hoping to also practice using vmware stuff to do so. Have I got the wrong end of the stick? Is there a free built in web interface like there was with VMServer or is the only option vSphere (which is massively out of my price range)? Looking forward to your responses and hoping that I have just missed something obvious! Regards Tim

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• dual boot install--no GRUB

  - by Jim Syyap

  My computer recently had a hardware upgrade and now runs on Windows 7. I decided to install Ubuntu 11.04 as dual boot using the ISO I got from ubuntu.com downloaded onto my USB stick. Restarting with the USB stick, I was able to install Ubuntu 11.04 choosing the option: Install Ubuntu 11.04 side by side with Windows 7 (or something like that). No errors were encountered on installation. However on restarting, there was no GRUB; the system went straight into Windows 7. Looking for answers, I found these: http://essayboard.com/2011/07/12/how-to-dual-boot-ubuntu-11-04-and-windows-7-the-traditional-way-through-grub-2/ http://ubuntuforums.org/showthread.php?t=1774523 Following their instructions, I got: Boot Info Script 0.60 from 17 May 2011 ============================= Boot Info Summary: =============================== => Windows is installed in the MBR of /dev/sda. => Syslinux MBR (3.61-4.03) is installed in the MBR of /dev/sdb. => Grub2 (v1.99) is installed in the MBR of /dev/sdc and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks for (,msdos7)/boot/grub on this drive. sda1: __________________________________________________ ________________________ File system: ntfs Boot sector type: Windows Vista/7 Boot sector info: No errors found in the Boot Parameter Block. Operating System: Boot files: /grldr /bootmgr /Boot/BCD /grldr sda2: __________________________________________________ ________________________ File system: ntfs Boot sector type: Windows Vista/7 Boot sector info: No errors found in the Boot Parameter Block. Operating System: Windows 7 Boot files: /Windows/System32/winload.exe sdb1: __________________________________________________ ________________________ File system: vfat Boot sector type: SYSLINUX 4.02 debian-20101016 ...........>...r>....... ......0...~.k...~...f...M.f.f....f..8~....>2} Boot sector info: Syslinux looks at sector 1437504 of /dev/sdb1 for its second stage. SYSLINUX is installed in the directory. The integrity check of the ADV area failed. According to the info in the boot sector, sdb1 starts at sector 0. But according to the info from fdisk, sdb1 starts at sector 62. Operating System: Boot files: /boot/grub/grub.cfg /syslinux/syslinux.cfg /ldlinux.sys sdc1: __________________________________________________ ________________________ File system: ntfs Boot sector type: Windows XP Boot sector info: No errors found in the Boot Parameter Block. Operating System: Boot files: sdc2: __________________________________________________ ________________________ File system: Extended Partition Boot sector type: - Boot sector info: sdc5: __________________________________________________ ________________________ File system: swap Boot sector type: - Boot sector info: sdc6: __________________________________________________ ________________________ File system: swap Boot sector type: - Boot sector info: sdc7: __________________________________________________ ________________________ File system: ext4 Boot sector type: - Boot sector info: Operating System: Ubuntu 11.04 Boot files: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img sdc8: __________________________________________________ ________________________ File system: swap Boot sector type: - Boot sector info: Going back into Ubuntu and running sudo fdisk -l , I got these: ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0002f393 Device Boot Start End Blocks Id System /dev/sda1 * 1 13 102400 7 HPFS/NTFS Partition 1 does not end on cylinder boundary. /dev/sda2 13 19458 156185600 7 HPFS/NTFS Disk /dev/sdb: 2011 MB, 2011168768 bytes 62 heads, 62 sectors/track, 1021 cylinders Units = cylinders of 3844 * 512 = 1968128 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000f2ab9 Device Boot Start End Blocks Id System /dev/sdb1 * 1 1021 1962331 c W95 FAT32 (LBA) Disk /dev/sdc: 1000.2 GB, 1000202043392 bytes 255 heads, 63 sectors/track, 121600 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00261ddd Device Boot Start End Blocks Id System /dev/sdc1 * 1 60657 487222656+ 7 HPFS/NTFS /dev/sdc2 60657 121600 489527681 5 Extended /dev/sdc5 120563 121600 8337703+ 82 Linux swap / Solaris /dev/sdc6 120073 120562 3930112 82 Linux swap / Solaris /dev/sdc7 60657 119584 473328640 83 Linux /dev/sdc8 119584 120072 3923968 82 Linux swap / Solaris Should I proceed and do the following? Assuming Ubuntu 11.04 was installed on device sdb1, do this: sudo mount /dev/sdb1 /mnt Then do this: sudo grub-install--root-directory=/mnt /dev/sdb Notice there are two dashes in front of the root directory, and I'm not using sdb1 but sdb. Since the command in step 15 had reinstalled Grub 2, now we need to unmount the /mnt (i.e. sdb1) to clean up. Do this: sudo umount /mnt Reboot and remove Ubuntu 11.04 CD/DVD from disk tray. Log into Ubuntu 11.04 (you have no choice but it will make you log into Ubuntu 11.04 at this point). Open up a terminal in Ubuntu 11.04 (using real installation, not live CD/DVD). Execute this command: sudo update-grub Reboot the machine.

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• Adding a new USB port inside a Macbook Pro

  - by MikeC8

  I have a USB Dongle that I'd like to put inside my Macbook Pro. I have already found a spot that will fit the dongle. The next question is splicing one of the USB ports and connecting it to the dongle. Here's a photograph of the inside of my Macbook Pro, showing the USB ports and a little gray plastic divider with four holes in it above each port. http://min.us/mvoQEem My question: Does anyone know what is inside these holes? Presumably each one is a pin for the USB port, right? Can I just stick a wire in there, giving me 4 pins, plus the fifth attached to the metal outside the port? More generally, any one have any ideas for what might be the easiest way to get a USB port inside my MBP? :) Thanks!

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• How does Notepad++ know to recognize the HTML and CSS in PHP files? Can I do this with PSP files?

  - by Andrew Alexander

  I am trying to get Notepad++ to recognize PSP (Python Server Pages) files. I've got it to recognize Python (by adding PSP to the ext= section), however it doesn't seem to understand that Python is only within the <% %> and <%= %> sections. I want it to parse HTML, CSS, Javascript and possibly even PHP (though if I am using PSP, I'd probably stick with that) as well, showing all the colors, etc, that would normally be associated with it. How do I go about that?

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• Burn iTunes playlist to Audio Image

  - by MikeHoss

  I have Snow Leopard on an early model MacBook Pro. The CD Drive has been giving me fits the last few months -- I stick a blank CD in it, and it claims it's bad and spits it out. I can go through a pile of brand-new CD's and it will choose 1 out of 7 that it wants to use, even though all the CD's come from the same package. The rejected CD's work fine on a Linux machine I have. I need to burn an audio CD from iTunes and my thought was: Burn playlist to audio CD Image file (Red Book image?) Copy ISO file to Linux Machine Use Linux machine to burn audio image to a CD But looking around, it doesn't seem that iTunes on OSX will support this. I was wondering if anyone else has accomplished this.

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• Dell D630 - Touchpad does not move the mouse cursor

  - by Dean McKenzie

  Windows XP - Dell D630 - Synaptics Touch Pad driver installed. The system tray icon that shows the movement of your finger on the touchpad registeres movement. The scroll feature of the touchpad works on any window with a scroll bar. The double click works even. But it never actually moves the cursor on the screen. An external mouse works with out problems, and I've replaced the palm-rest/touchpad and it continues to happen. The touch stick in the middle of the keyboard works without problems. Does anyone have any ideas?

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• Ubuntu/Linux version recommendation for HP dv6 3122TX?

  - by sanjayav

  I purchased a HP dv6 3122TX recently and after installing Ubuntu 10.10 64 bit I ran into multiple issues like, The wireless driver is not supported by Uubntu. (1) [The driver is RaLink RT3090 ] The ethernet stopped working sometimes for no reason [The driver is Realtek RTL8111/8168B ] "Corrupted low memory at ..." issue which is described as a kernel bug in Ubuntu support forums. (It started to take me to a terminal instead of the GUI and couldn't start x server after that) As I'm not an expert Ubuntu user I got fed up of all these issue and got back to Windows 7. But I need an Ubuntu installation up and running for my development work. What are your suggestions about a reasonable Ubuntu version that I should try? Or a different Linux variation? Should I stick to a 32-bit version? It'd be great anyone can give some advice on this issue.

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• How Do I Make A Bash Script for Git Checkin/Checkout?

  - by ServerChecker

  I was thinking of bringing up a git service on an Ubuntu server. However, the way me and another programmer operate -- we really want to try and stick to one person working on a project at a time. How would I make a Bash script to create a check in and check out with git? We want to prevent anyone from checking in code that hasn't already been checked in, and it should error out with the name of the person who has the code checked out. EDIT: I'm not really interested in using Git with its fantastic diff features. I move 100mph and don't have time to play diff games with the other developers. That's why we're using Git. If the other developers want to play the diff game, they can still do so. But when I check something out, I want it locked to everyone until I check it back in again.

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• memtest incorrectly recognizes my RAM

  - by Brendan Abel

  I recently built a computer and randomly got a couple blue screens. I've run memtest and one of the memory sticks consistently throws memtest errors, while the other does not. The odd part is, memtest lists the following settings for my RAM: RAM: 535 MHz DDR 107 / CAS 2.5-1-3-1 DDR1 128 bits But my RAM is DDR3 1600? Memtest also lists my cpu as AMD K8, even though it's K10. I've probably going to RMA the ram stick, but I just wanted to see if anyone had any insight into the weird memtest stats.

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• Painless way of consolidating files across multiple machines/OSes

  - by 5arx

  Just bought a NAS. So I thought I'd get all our photos, media files and pdfs consolidated, de-duplicated, de-junked and virus-checked and stick them all on it. We have 3 laptops, one running Windows, the others OSX. We have a file server running Windows - it was the result of an earlier attempt at a networked fileserver - and a Mac Pro that is also kind of a server (previous attempts at this job have resulted in most of our stuff being on it). Also memory cards/sticks, cd backups and so on. I would be grateful if anyone could suggest a strategy or, ideally, tool(s) I could use to solve this problem. It is probably no more than one or two terabytes of data in total, but I can imagine that going through it all manually, file-by-file may well drive me insane.

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• Pendrive not working on USB port - USB2 Enhanced Host Controller - 27CC

  - by user1664417

  I have a situation here, is kind of weird. Situation as below: If i enable the 'Intel(R) 82801G (ICH7 Family) USB2 Enhanced Host Controller - 27CC' , then my pc will not be able to read any USB stick/pendrive, but usb port work fine with keyboard and mouse. If I disable the device driver, then all kind of pendrive can be read. Below is What i have done : 1) try the same pendrive on other pc, it work like charm. 2) try others pendrive on issue pc, same problem, but it work fine in others pc. 3) try all the port, including the port that connected to mouse n keyboard. 4) update the driver version. 5) restore default setting of usb in bios Please help to solve these issue if anyone experience it before. Many thanks.. :

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• create a bootable usb to automatic repair windows xp system32 files

  - by Edo Post

  Is it possible to create a script/live distro that replaces some system32 files? To explain it a bit more in details: There is a company that has multiple computers (think in 100/1000's) and they all are missing the same system32 files since the company's software removed it. The systems are distributed all over the world and are managed by "normal" people who don't have any knowledge about computers. I want to create a usb stick that i can mail to all those people which contains a script that executes when you boot the usb. this script should replace the missing system32 files without any user input is this possible, and if so how could i manage this?

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• Are there any benefits to using a Distributed vSwitch for iSCSI?

  - by dunxd

  I am designing our vSphere farm - we'll be migrating from ESX 3.5 to 4.1. I plan to set up a new farm using ESXi 4.1, and move the Virtual Machines on the 3.5 farm into it by shutdown, then import. In ESX 3.5 there is no distributed networking, so each host has a vSwitch connected to my SAN NICs, and a port group for the vmkernel. In vSphere (ESXi 4.1) I have the extra option to set up a distributed vSwitch and distributed port groups for vmkernel to access iSCSI storage. Is there any benefit to this, or should I stick to non-distributed networking for iSCSI.

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• How do I make a backup of a live server?

  - by Jurily

  At my new job, I have a production server with the following qualities: Windows (XP I think), ancient hardware Absolutely vital database No backups whatsoever Everyone in the company has full admin rights, the passwords are stored in a .txt on the global share No installers, except for the OS The machine itself is sitting on a wooden shelf 5 feet above the ground against an external wall with frequent truck traffic on the other side; the shelf is already bent from the constant load Hasn't been rebooted in $DEITY knows how long, my predecessor wasn't even sure if it would survive it UPS is installed, but since everything is hooked up to it, it would last 10 minutes tops No spare parts or hardware budget How do I make a full backup with minimal impact on the server? I'm not sure how close it is to a total meltdown. For all I know, plugging in a USB stick could kill the company, and of course it will be all my fault, since "it was running fine before you touched it". The ideal solution would be a VM, so I have a test environment as well (separate of course).

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• Failing RAM, or something else?

  - by Thanatos

  I have a IBM Thinkpad T43, currently running Windows XP. Programs were crashing, XP was blue-screen-of-deathing, (more than usual) - it was basically unusable, but I couldn't get any informative error out of XP. I booted Ubuntu off a thumbdrive, which made it to the desktop, but as soon as I started to try to do anything, X segfaulted, along with several other services, followed quickly by kernel warnings and a kernel panic. I'm currently running Memtest86+ on this machine, which is spitting out numerous errors. (16k over 3 passes, and counting) The failing areas are numerous, and look something like this: 0001055da4 - XX.X MB, etc. The addresses that fail seem to cluster around 0-20 MB, 250MB, and, more rarely, 750MB, 1000MB, and 1200MB. However, a lot (but not all) of the failing addresses that I've seen end in XXXXXXX?da4 where the ? is a 1 or a 5. The machine has two sticks of RAM, one 512MB, one 1024 MB, the 512MB mapped to the lower addresses, the 1024 MB stick following. Is this indeed RAM failure, or should I consider other things before purchasing more RAM?

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• Is it wise to use SSHDs (Solid state hybrid drives) on a server?

  - by Seb

  I have a bunch of servers with very heavy I/O that currently use SATA3/SAS drives, but do suffer from I/O wait on the SATA drives, and I have just been alerted to the existence of SSHDs which cost the same for 1TB as the 1TB SATA drives that we currently use. However, previously (until Seagate shipped their first 3.5" SSHD in March) they seemed to be exclusively for Netbooks/Notebooks, which leads me to suspect they're not exactly built for the heavy I/O they'd be in for with my servers. So, would an SSHD give me a performance boost over my SATA3 drives in a heavy I/O environment (such as multiple very large high speed file transfers) or is it best to stick with SATA3 with I/O wait??

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• How to distill / rasterize a PDF in Linux

  - by Sampo

  We have a printer at our office that prints PDF files from a USB stick. It prints most files okay, but it has problems with some, especially ones generated with Latex. Some PDFs it simply refuses to print, some PDFs it prints with courier-type font, and some it prints fine except for equations. I'm looking for a way to "distill" PDFs into a dead-sure format to print. Either by simplifying / normalizing the PDF to the point that any renderer will render it correctly, or by simply making each page a 600dpi raster image in the PDF. (I could split the PDF into individual raster images and combine them manually, but I want something scriptable.) The output file size doesn't matter, as long as it's sure to print, has A4 paper size (or the original) and 300~600dpi resolution.

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• What are the Windows G: through Z: drives used for?

  - by Tom Wijsman

  In Windows you have a C: drive. The first things labeled beyond that seems to be extra stuff. So my DVD drive is D: and if you put in a USB stick it becomes F:. And then some people also have A: and B:. But then, what and where are G: through Z: drives for? Is it possible to connect so many things to a computer to make them all in use? Or more than them? Would it give a BSOD? Or would this slow down the system somehow? Or what would happen? What if I want to connect even more drives to the computer? Because with the hard drive limits it's more efficient to buy more drives than to buy a single drive with a lot of capacity. Is it possible to create drive letters like 0: through Z: or AA: through ZZ:?

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• Choosing a Linux distribution

  - by Luke Puplett

  Dangerous territory with this question so please try to be impartial and instead focus on what to look for when choosing a Linux distribution. I'm completely new to Linux. I thought it'd never happen but I need to have a Linux box to play with and I have a spare fanless Atom PC (32-bit only). I'll be using the machine as a non-commercial hobby server, the trouble is, I don't even know how to compare Linux distributions and why people pick one over another. If anything, I want to have an easy install from USB stick. My question is: what do you look for when choosing a (free?) Linux distribution for a server? If you can, please explain what sorts of things actually differ between one and another without saying which you think is better, just the facts. The way I see it, Linux as a server is just an SSH console and I find it hard to imagine what could be different between one and another.

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• My laptop suppose to have 6 GB ram but it's only 2 GB installed

  - by monablo

  My laptop is supposed to have 6 GB ram but it only detects 2 GB of it, so I don't know what to do. I searched the web for answer and what i get that there's 2 possible problem: 1- That 4 GB ram card is broken and not working 2- or the 2 ram card have a different path so the windows chose the path of the smaller ram card which would be the 2 GB ram I don't know what is the path in first place so I really don't know what to do. How would I troubleshoot, and work out why the 4 GB stick is not being detected? My laptop's specifications are as follows: Windows 7 Home premium 64- bit Operating system processor : intel (R) core(TM) i7 CPU Q740 @1.73 GHz 1.73GHz installed memory(RAM) : 2.00 GB (but it suppose to be 6 GB -_- ) My laptop is Dell and it's Model N5010

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• further troubleshooting on a p8z77 motherboard

  - by Journeyman Geek

  I just bought a brand now asus p8z77 motherboard with a intel 3770. Its currently not booting - the system powers up for half a second and then powers down, and the CPU error light shines. I've tried switching ram between slots, switching PSUs, updating the bios (which can be done sans processor or ram on this model). Power: The 8 pin power connector is definitely in place correctly, and I've tried swapping PSUs between a new seasonic m12, and a known good cheapie PSU Ram: Ram is in the recommended slot for single stick operation, and tried swapping between the two sticks of DDR3 I have. Processor: Its installed correctly as far as I can tell, no obvious bent pins on the motherboard. At this point I'm guessing I'll need to RMA something. Are there any 'definitive' tests I can try, short of swapping CPU and motherboard that would let me know it is the CPU? Can I actually trust the error light on the motherboard?

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• ideal memory configuration 4 bank, ddr3, AM3+ FX - 1 vs 2 vs 4 dimms?

  - by TardisGuy

  Ok, so ive been looking around, trying to learn and understand the way that ram works. Ive gotten one answer that said "The addressing is best for 2 sticks, and when you use 4; it slows down" Another answer said something like: Theres bank/channel interleave that makes the memory read like one stick Also I read something about the memory density also being a factor. I dug further and found out that theres a higher speed limit on my board for 2 sticks vs 4, so now im trying to put an image in my head of how and why, and... pfft. Can anyone explain, or recommend a resource that would answer these questions?

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• Is it possible to use a dual processor computer as your desktop?

  - by Ivo Flipse

  I've seen some people suggesting to get a motherboard that supports two processors and stick two Xeon Nehalem processors in it. Could you use this system as a desktop PC or is this useless or even impossible? It's more hypothetical question if Windows 7 would support such a set-up. I know you could just take an i7, but wouldn't two of those processors be a whole lot more awesome? Like the previous generation Skulltrails? The idea would be to have a motherboard like this ASUS Z8NA-D6C Dual LGA 1366 Intel 5500 ATX and two Xeons (since I don't think i7's could be used) Intel Xeon E5405 Harpertown to run something like Windows 7 Ultimate.

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• recommendation for configuration for a multi-core guestOS

  - by reidLinden

  Hi there, I've just received an upgraded Host machine, and am looking to push some of those advances to my workstations Guest OS(s). In particular, I used to have a single processor, with 2 cores, so my guestOS only had 1/1. Now, I've got a single processor with 8 cores, so I'm curious about what would be recommended for my GuestOS now? 1 processor/4 cores? 2 processors/2Cores? 4 processors/1 core? My instinct says to stick with the number of physical processors (or less), but, is that based on reality? I spent a good while looking for an answer to this, but perhaps my google-karma isn't in my favor today. Suggestions?

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