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MacOSX backup SD card

  • MacOSX backup SD card
    1. Unmount the SD Card diskutil unmountDisk /dev/disk4 2. Use dd to create a backup, pipe trough pv to see the progess (example is 32...
  • PDF shrink using ghostscript
    If you want to shrink pdf files, you can make use of good old gs like this: gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/e...
  • Software Raid 5 erweitern
    Neue Platte partitionieren (Linux raid autodetect code "fd") sudo cfdisk /dev/sbd Dateisystem auf dem RAID unmounten Neue P...