How to bore Tunnels… I am way too lazy to remember all sorts of commands. At the same time, when in my company VPN, because of how the VPN client works, I can regularly not access things on my home network. Be it some Windows VM that I’ve running...
Continue reading...Linux
What if your Linux doesn’t boot anymore…
…for example, because you messed around with the partitions, and end up at the grub prompt. Here’s a very convenient way on how to solve it: The Boot Repair Disk.
Continue reading...Moving Virtual Boxes in Ubuntu
This is perhaps the 100 millionth post on the topic, yet all I could find was how to move the virtual box files through vboxmanage, which appears to imply having to remove snapshots. Here is a very easy different process that will just repoint to where the machine’s folder...
Continue reading...Experiencing random, but predictable crashes with VirtualBox running SuSE SLES 11.3 (solved)
This one was not easy to solve. Running SuSE SLES 11.3 as guest in VirtualBox 4.2.18 on an otherwise entirely stable host (Linux 3.11.0 running Ubuntu 13.10), my 64 bit SLES VMs would randomly just “stuck”, consuming full CPU usage on the host system for the cores I had...
Continue reading...How to free up some Host Disk Space with Virtual Box
Here’s some hints on how to reduce the size of your virtualbox disk image (VDI) files, for linux guests (and host). First, you’d of course shut down your virtual box guest and then make a backup copy of that vdi file just in case. Next, boot into your guest...
Continue reading...apt-get upgrade failing after moving from vmware to virtual box?
Moving to VirtualBox is just a great idea when you’re coming from VMWare Server 2.0 which is no longer supported. VirtualBox is a lot more modern, also allows for a headless setup, and it is a lot faster. The only drawback I saw is that VMWare Server allows for...
Continue reading...Pay attention to disk space when you’re running unattended upgrades on your Linux boxes
Today’s one of those days where you start with a clear plan of what you want to do, and then you end up fixing something entirely different. Since I’ve built most of my virtual machines based on a small set of templates, at some point I got bored by...
Continue reading...When your Server dies…
Having recently upgraded my server by an external housing and an additional SCSI controller (an LSI 9750-8e in addition to the 9690SA-8i), I was experiencing unexpected server crashes that had never happened before on that server. The server just became unresponsive, sometimes still responded to a ping, sometimes not. Before,...
Continue reading...New OCR Wrapper published on Sourceforge
I’ve shared a small project I’ve recently written on sourceforge: pdfocrwrapper.sourceforge.net This tool serves as a wrapper around the excellent ABBYY OCR engine which also exists as a Linux variant. The wrapper recursively iterates a directory structure and submits all PDF that it finds (and that it has not...
Continue reading...Attention when upgrading to Firefox 3.6 on Linux and using VMWare Server Console
When upgrading e.g. to Ubuntu 10.4, Firefox will get its current version updated to 3.6. Unfortunately, the VMWare Server Console plugin will refuse to work with Firefox 3.6. For this reason, if you need to use the plugin, you can download Firefox 3.5.9 e.g. from mozilla.cdn.cacheboy.net/firefox/releases/3.5.9/linux-i686/de/firefox-3.5.9.tar.bz2 and install it...
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