I've the same problem. I have found that Jockey tries to install the "firmware-b43-installer" instead of the right "firmware-b43-lpphy- installer" and then wifi drivers installation is screwed up. After manually uninstalling / installing the wrong / right driver in Synaptict P.M. I can use the right kernel driver "firmware-b43-lpphy-installer", but Jockey reports that the B43 driver is not activated.
my wifi chipset pci id is 14e4:4315 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651010 Title: package firmware-b43-installer 4.150.10.5-4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs