• Linux,  Work

    Linux performance improvements

    Two years ago I wrote an article presenting some Linux performance improvements. These performance improvements are still valid, but it is time to talk about some new improvements available. As I am using Debian now, I will focus on that distribution, but you should be able to easily implement these things on other distributions too. Some of these improvements are best suited for desktop systems, other for server systems and some are useful for both.

  • Linux,  Work

    Data recovery from a USB key

    Some time ago, somebody from my work had problems¬† reading files from a USB memory stick. In Windows, she just got the message that the disk was not formatted and so none of the files could be accessed anymore. I checked the disk in Linux. The kernel still found a partition on the disk, but it was not mounted automatically. I tried to mount it by hand, but that failed. Then I decided to run TestDisk, to verify the partition table was really correct. I used dd to copy the whole disk to an image file on my hard drive, because I prefer not to do these kind of experiments…