Actually, I just checked permissions and now it's loading ok!
So, just in case anyone has this issue... I recommend the following from:
MySQL keeps crashing: InnoDB: Unable to lock ./ibdata1
make a copy of the original files (ibdata1, ib_logfile0, ib_logfile1...).
mv ibdata1 ibdata1.bak
cp -a ibdata1.bak ibdata1