Windows 7 64-bit fails to install on VirtualBox / Linux with status code 0xc0000225

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Windows 7 64-bit fails to install on VirtualBox on Linux with status code 0xc0000225: “Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: 1. insert your Windows installation disc and restart your computer. 2. Choose your language settings, and click “Next.” 3. Click “Repair your Computer”.
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How to install noip2 on Linux

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How to install noip2 on Linux to update my no-ip domain? Check the post at: https://www.systutorials.com/4677/how-to-install-noip2-on-linux/ To make noip2 service automatically update with your latest IP, add a crontab entry for root: 0 */5 * * * /sbin/service noip restart The noip2 service will be restarted every 5 minutes. When the service is restarted, it
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How to convert a ps file to a pdf file

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How to convert a ps file to a pdf file that is available for publish (embedded fonts, etc)? Convert the file.ps ps file to file.pdf: $ ps2pdf -dPDFSETTINGS=/printer file.ps file.pdf</pre> Embedding Fonts in PDFs with pdflatex by Jeffrey P. Bigham: http://www.manticmoo.com/articles/jeff/programming/latex/embedding-fonts-with-pdflatex.php

Installing Dropbox on Linux

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How to install Dropbox on Linux ? Just follow Dropbox’s instruction here: https://www.dropbox.com/install?os=lnx A quick command for 64-bit Linux: $ cd ~ && wget -O – “https://www.dropbox.com/download?plat=lnx.x86_64” | tar xzf – Use the dropx CLI: http://www.dropboxwiki.com/Using_Dropbox_CLI Download dropbox.py: $ wget -O ~/bin/dropbox.py “https://www.dropbox.com/download?dl=packages/dropbox.py” Set the permissions: $ chmod +x ~/bin/dropbox.py Start Dropbox: $ dropbox.py start Status:
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Synchronizing home directories

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Any good tools to synchronize home directories on Linux boxes? Many have several PC/laptops and consequently many home directories. There is home directory synchronizing problem. unison is a good tool to do this: http://www.cis.upenn.edu/~bcpierce/unison/download/releases/stable/unison-manual.html#rshmeth http://www.watzmann.net/blog/2009/02/my-homedirs-in-unison.html http://www.cis.upenn.edu/~bcpierce/papers/index.shtml#File%20Synchronization Useful script: $ unison -batch -ui text ./ /mnt/homebak/zma/ In text user interface, synchronizing two directories in batch mode
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SEEK_HOLE and SEEK_DATA: efficiently archive/copy large sparse files

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How to efficiently archive a very large sparse file, say 1TB? The sparse file may contains a small amount of data, say 32MB. SEEK_HOLE and SEEK_DATA The SEEK_HOLE/SEEK_DATA functionalities play the trick and makes `tar` and `cp` handle the large sparse file very efficiently. `lseek` with `SEEK_HOLE` returns the offset of the start of the
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Managing LVM

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Any tutorials or tips on how to manage LVM? LVM provides a flexible and easy way to management storage disks on Linux. It also provides a set of tools for management. Here are some tutorials and references for managing LVM: LVM man pages: https://www.systutorials.com/docs/linux/man/8-lvm/#lbAL Manage Disk Volume in Linux: http://www.hongkedavid.com/blog/disk_volume.html LVM with Xen: https://www.systutorials.com/b/linux/tag/lvm/ Remove missing phyiscal volumes
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Where Does Evolution Save Its Data and Configuration Files on Linux?

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Evolution is a great personal information management tool that provides Email, address book and calendar tools. Evolution provides many enterprise friendly feature such as native support to Microsoft Exchange connectivity for Emails, address books and calendars. Evolution uses various ways including plain files and dconf configuration systems. This post will give an introduction to the
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How to Export an NFSv4 Server to External Networks

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We ever discussed fixing ports used by NFSv3 so that it can be easily exported to external networks. For NFSv4.1 or higher, things are much easier. The ports for mountd, statd, and lockd are not required in a pure NFSv4 environment. We have less ports to control or allow for connections. Only port 111 and
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NET Core 2.1 Release: Feature To Expect in 2018

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What surprises are awaiting the tech world with .NET Core 2.1 Release in 2018? Technology is one of the most dynamic spheres these days. Every single year you will find a new version of an existing software and .NET Core is not an exception. The intentions of these upgradation is to make online activities seamless,
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