It would appear that if the firmware is present, the kernel doesn't hang. The 'invalid argument' path through the code also doesn't trigger the hang. Only the 'no firmware' path is a problem.
I have downgraded to oneiric so I could try the older mainline kernels that hadn't been tagged for precise. I've been away, so haven't had time to rebuild to precise. 3.2.0-rc2 is the oldest kernel I've found with the bug (the stock oneiric being older and so not buggy) I used that one to test the effect of having firmware in place. A generic workaround would appear to be * bootstrap off the iso * add 'b43.blacklist=yes' to the kernel args * install * reboot off the hard disk, adding the kernel argument to stop it hanging * install the firmware Or chroot etc., but this is less challenging. I'll download the latest ISO, rebuild to precise, and will confirm. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/950295 Title: acer laptop hangs during boot process; 12.04 - b43 driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/950295/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
