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I recently formatted my computer, re-installed Ubuntu and consequently have to re-download and re-synchronise the blockchain. I initially started using the most recent (as of this posting) Mist release and left it overnight; progressed around 1.8M blocks. The following day, I moved this data to a backup folder and restarted entirely using
geth --fast --cache=1024. 24 hours later this had advanced 2.8M blocks. I have now gone back to Mist and continued from the 2.8M, but it is moving incredibly slow to the point where I am convinced I am missing something..? Any suggestions would be much appreciated! I should add that I am running on a 1GBit connection, so that, if anything, is definitely not the bottleneck.