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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?

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  • try UPS (uninterruptible power supply).
    – lenik
    Commented Jul 14, 2014 at 15:37
  • What is it? Like a battery which starts working when the DC power is lost?
    – BackSlash
    Commented Jul 14, 2014 at 15:42
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    Yes. More info.
    – Kevin Brey
    Commented Jul 14, 2014 at 19:22

2 Answers 2

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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 fsck(check and repair Linux filesystems) 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.

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  • 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
    Commented Jul 14, 2014 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
    Commented Jul 14, 2014 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
    Commented Jul 16, 2014 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.

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  • 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? Commented Sep 22, 2014 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
    Commented Sep 23, 2014 at 10:55

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