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10.7 Broadcom BCM5721 works during install (32 bit by default?) not after updates


swamswam
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Hi all,

 

As a relative noob I came across this problem: my rig, an HP proliant, works fine under OSX as a testing environment and as a platform to upgrade my skills without ruining my iMac's OS. Except for 1 thing: the ethernet does not work. 

It has an onboard Broadcom NetXtreme BMC5721. During install, which I believe is a 32 bit environment in Lion, my network works OOB, no tricks, it just works. After installation under 10.7 it worked fine. After upgrading to 10.7.5 there was no network available in OSX (64 bit kernel and userspace), no PCI adapters present, the activity led on the adapter's port is off (orange connection led is on), there's just nothing ethernet-ish found by the system. Does anyone have a clue as to what happened to the kext (which one? AppleBCM5701?)? Could someone give me a hint as to what I can test of try to shed some light on this problem? Anyone else who uses this adapter?

Can I supply more info - and what is needed - to help out?

From this and other fora I know that it worked under 10.4 - 10.5 (at least) and from my own experience it works out-of-the-box during install of 10.7.

Rebooting with arch=i386 results in a kernel panic, so - at the moment - I cannot test it at 32 bits under 10.7.5.   

 

Please be gentle, noob at play! ;-)

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