Bitcoin Core Startup Failure

[bethanybeachbum]

I have been running the bitcoin core successfully for months on an external 1Terabyte drive connected to a MacBook Pro.  Accidentally, the hard drive disconnected from the USB port. I now get this error:

  ./bitcoind
  dyld: Symbol not found: __ZN5boost10filesystem4pathdVEPKc
  Referenced from: /Volumes/Brown_Fam_Back_Up/bitcoin/src/./bitcoind
  Expected in: /usr/local/opt/boost/lib/libboost_filesystem.dylib
 in /Volumes/Brown_Fam_Back_Up/bitcoin/src/./bitcoind
  Abort trap: 6

Any ideas to repair are greatly appreciated.

I have searched the forum and there is talk of using a file called Bitcoin-Qt but I cannot find it.
Also, where are the core data files kept?

Thank you,

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[jackg]

Have you not moved the data somewhere yourself? It'd be weird to run bitcoin core from an external hard drive while leaving the chain and wallet data on your machine (weird as in unusual, it isn't problematic).

I'd recommend reinstalling bitcoin core in the same place on your mac book hard drive and it'll probably fix the error as it looks like it just can't find bitcoind (though I could be wrong on this).

[BitMaxz]

The data or the bitcoin core files might be corrupted after the HDD is accidentally disconnected.

You have a similar issue on this link below

- https://github.com/bitcoin/bitcoin/issues/11040

According to other users, they reinstall the boost lib and Bitcoin core it fixed their issue. So try to re-install bitcoin core just make a backup of your bitcoin data including blocks so that you don't need to redownload the entire blockchain.

[NotATether]

The error is complaining of a missing boost-filesystem shared library (.dylib) in the /usr/local folder. On Mac it's usually found there if you compile from source, but if you install it from a DMG or the like it will appear in /Applications.

To fix this you should uninstall and reinstall Core off of the external hard drive and then just configure the datadir to point to your external volume using the bitcoin.conf settings file.