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I am a bit confused by the state of the storage on my RPi. I have a 32G SD Card but looking at the following it is nearly full but has only used up 3.8G space!

'df' tells me my /dev/root is 30G in size, 27G used with only 1.5G available. df -h

'parted' tells me a similar story, two partitions which are in total 31.9G in size. parted -l

But 'du' tells me that I only have 3.6G of files.

du

Pi OS details:

lsb-release

I understand that df and du calculate the space used differently, but what could be going on here that gives such a large difference?

I have tried running raspi-config and the above details do not change (even after a reboot of the pi). raspi-config--expand-rootfs

P.s. Sorry for the lack of info to start of with, late night frustration not understanding why my Pi was running out of space!

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    you probably haven't extended the filesystem - though, df suggests you have - odd ... what is the actual output of parted -l – Jaromanda X Mar 19 '18 at 0:15
  • Which filesystem do you use? Btrfs is known to be a bit confusing about free space calculations. I will give you a different answer depending on that information. – Amedee Van Gasse Mar 19 '18 at 6:22
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    note: extending the partition doesn't extend the filesystem - the raspi-config way below should do both for you – Jaromanda X Mar 19 '18 at 8:04
  • "am I missing something" such as some data about what you see, what OS etc. – Milliways Mar 19 '18 at 9:05
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    -1 for posting error messages as screenshots. – Dmitry Grigoryev Mar 20 '18 at 9:56
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Maybe you did not expand your file system yet. Try

sudo raspi-config --expand-rootfs
  • Thanks for the answer, but in my edited question above I show that I have already done this but it hasn't made any difference. – Lawrence Mar 20 '18 at 19:08

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