我的mongodb安装遇到问题：
当我运行sudo mongod时，我得到mongod: symbol lookup error: mongod: undefined symbol: _ZN5boost6detail13once_epoch_cvE
uname -a
Linux xyz 3.2.0-4-686-pae #1 SMP Debian 3.2.65-1+deb7u2 i686 GNU/Linux
which mongod
/usr/bin/mongod
ldd /usr/bin/mongod
linux-gate.so.1 => (0xb76e7000)
libpcrecpp.so.0 => /usr/lib/i386-linux-gnu/libpcrecpp.so.0 (0xb76b9000)
libpcre.so.3 => /lib/i386-linux-gnu/libpcre.so.3 (0xb767b000)
libstdc++.so.6 => /usr/lib/i386-linux-gnu/libstdc++.so.6 (0xb758e000)
libboost_system.so.1.49.0 => /usr/lib/libboost_system.so.1.49.0 (0xb758a000)
libboost_thread.so.1.49.0 => /usr/lib/libboost_thread.so.1.49.0 (0xb7565000)
libboost_filesystem.so.1.49.0 => /usr/lib/libboost_filesystem.so.1.49.0 (0xb7546000)
libboost_program_options.so.1.49.0 => /usr/lib/libboost_program_options.so.1.49.0 (0xb74de000)
libm.so.6 => /lib/i386-linux-gnu/i686/cmov/libm.so.6 (0xb74b7000)
libgcc_s.so.1 => /lib/i386-linux-gnu/libgcc_s.so.1 (0xb749a000)
libpthread.so.0 => /lib/i386-linux-gnu/i686/cmov/libpthread.so.0 (0xb7481000)
libc.so.6 => /lib/i386-linux-gnu/i686/cmov/libc.so.6 (0xb731d000)
/lib/ld-linux.so.2 (0xb76e8000)
librt.so.1 => /lib/i386-linux-gnu/i686/cmov/librt.so.1 (0xb7314000)
libboost_system.so.1.57.0 => /lib/libboost_system.so.1.57.0 (0xb730f000)
我重新安装了libboost和mongodb，但没有成功。知道发生了什么事吗？
BR /