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I have a raspberry Pi, Model B.

I installed Raspbian on the SD card and I would like to use it as a SVN server. The problem is that when it shuts down unexpectedly (i.e. there is a blackout, or DC power gets accidentally disconnected before shutting down the OS), it won't boot anymore. It hangs on a black screen and doesn't boot up. How can I fix this?

  • try UPS (uninterruptible power supply). – lenik Jul 14 '14 at 15:37
  • What is it? Like a battery which starts working when the DC power is lost? – BackSlash Jul 14 '14 at 15:42
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    Yes. More info. – Kevin Brey Jul 14 '14 at 19:22
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I had the same problem of a corrupted file system after an unexpected shutdown. I used a Linux system with an SD card reader and used the fcsk tool to "repair" the file system.

There are LiveCDs/LiveUSBs with Linux so you don't need to install the entire OS if you don't want to.

After that, I made a image of the working SD card, so I am able to simply rewrite the whole SD card in case something happens later.

  • Ok, but that is really boring. With a normal computer, this doesn't happen, I can't believe there isn't a way to get rid of this problem – BackSlash Jul 14 '14 at 13:34
  • "Normal computers" don't use an sd card to store all OS files. See this for a way to stop sd card corruption – Kevin Brey Jul 14 '14 at 19:30
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    I use the SD-Card for boot only. The OS and the data are located on a usb-stick. @KevinBrey Thank you for the link, didn't thought of making the boot-partition read-only ;-) – Kuishi Jul 16 '14 at 15:46
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Unfortunately, there's a known issue where if the Pi loses power; it can corrupt the SD card permanently. I've lost 2 so far. The best way to avoid this is to either use a UPS; or, as I do, keep it plugged into a cheap netbook with a 9 hour battery.

  • Can you provide sources for this? Is there an explanation why SD cards get destroyed so often in the Raspberry PI, but not in other devices? – Jonas Stein Sep 22 '14 at 9:28
  • Other than personal experience there's this thread tells more; there are a lot of theries such as if the card is genuine, if you are overclocking the Pi, and even if it's class 4 vs 10: raspberrypi.org/forums/viewtopic.php?f=28&t=36533 – linuxgnuru Sep 23 '14 at 10:55

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