Running the current release of Ubuntu 9.04, a few weeks ago I began having the same problem described here where my system stopped automatically mounting my NAS drive during a system boot (manually mounted using 'sudo mount -a). I use the following line in fstab.
After much research I came to this bug report where I read 'Network Manager' could have something to do with this problem. A few weeks earlier I switch from 'Network Manager' to 'Wicd' and after switching back to 'Network Manager', I re-booted my system and my NAs drive is automatically mounted. Thanks for your help in resolving my problem and I hope this gives you another piece of the solution puzzle.
Running the current release of Ubuntu 9.04, a few weeks ago I began having the same problem described here where my system stopped automatically mounting my NAS drive during a system boot (manually mounted using 'sudo mount -a). I use the following line in fstab.
//192.168. 0.9/Volume_ 1 /media/NAS-Shared cifs credentials= /root/. smbcredentials, iocharset= utf8,file_ mode=0777, dir_ mode=0777 0 0
After much research I came to this bug report where I read 'Network Manager' could have something to do with this problem. A few weeks earlier I switch from 'Network Manager' to 'Wicd' and after switching back to 'Network Manager', I re-booted my system and my NAs drive is automatically mounted. Thanks for your help in resolving my problem and I hope this gives you another piece of the solution puzzle.