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| author | Wladimir J. van der Laan <laanwj@gmail.com> | 2011-06-14 08:13:29 +0200 |
|---|---|---|
| committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2011-06-14 08:18:31 +0200 |
| commit | 5363cb05f682a7954b6fa5c74fbe589c41b955e3 (patch) | |
| tree | 14beb16b4c38a4e087615eb208b56bd7f872eb93 /README.rst | |
| parent | f15df6bb7a470f75ca61f8c9ddcebfbb39a76f49 (diff) | |
Add berkelydb version warning
Diffstat (limited to 'README.rst')
| -rw-r--r-- | README.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/README.rst b/README.rst index 2ffc4a92b8..9d7ad10f18 100644 --- a/README.rst +++ b/README.rst @@ -60,3 +60,18 @@ Alternatively, install Qt Creator and open the `bitcoin-qt.pro` file. An executable named `bitcoin-qt` will be built. +Berkely DB version warning +========================== + +A warning for people using the *static binary* version of Bitcoin (tl;dr: **Berkely DB databases are not forward compatible**). + +The static binary version of Bitcoin is linked against libdb4.7 or libdb4.8 (see also `this Debian issue`_). + +Now the nasty thing is that databases from 5.X are not compatible with 4.X. + +If the globally installed development package of Berkely DB installed on your system is 5.X, any source you +build yourself will be linked against that. The first time you run with a 5.X version the database will be upgraded, +and 4.X cannot open the new format. This means that you cannot go back to the old statically linked version without +significant hassle! + +.. _`this Debian issue`: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621425 |