Migrating Bitcoin folder?

[xerces8]

Hi!

Since version 0.8.x uses hardlinked files, what is the correct way to backup/restore or migrate to other PC the %APPDATA%/Bitcoin folder?

Before I just copied it and it worked.

Are the "duplicate" files really needed?

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OK, read read thru the rather long Bitcoin-Qt / bitcoind version 0.8.0 released thread and found out:

blk0001.dat, blk0002.dat, blk0003.dat and blkindex.dat from the data directory can be removed , probably also blk0004.dat that was not mentioned in that post, but is also a hardlinked file

Also: the scenario of upgrading a standalone exe (from bitcoin-0.x.y-win32.zip) on Windows is not described in the README.txt

[xerces8]

I forgot to add this: This information should be added to the README/release notes.


On a related thing, the release notes say:

Mac and Windows binaries are signed with certificates owned by the Bitcoin Foundation, to be compatible with the new security features in OSX 10.8 and Windows 8.

But I just downloaded http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.1/bitcoin-0.8.1-win32.zip/download , unzipped it, opened the properties of the file bitcoin-qt.exe and there is no sign of any signature.

If I start it on Windows 2012, the SmartScreen feature complains it having an unknown publisher.
Windows 8 on the other hand does not complain. Strange.