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USB storage unavailable after 7.4.2 upgrade

My USB attached 750gb hard drive is no longer listed or available as a shared device from any of my Macs after the 7.4.2 upgrade.

I've downgraded to 7.4.1, which has resolved the problem.

The device has one partition, and I'm using user authentication to control access.

I double-checked the 7.4.2 config, and it looks clean. Has anyone else had this problem?

Various intel based Macs, Mac OS X (10.5.7)

Posted on Jun 25, 2009 1:32 AM

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117 replies

Jun 25, 2009 4:44 AM in response to rbeer

Same problem here with 7.4.2. Two drives (1TB, 500 GB) attached via USB hub to the Airport Extreme.

The drives are visible after a reset of the AE, but the connection drops after 1 min of activity (doing a Time Machine backup or watching a movie from a connected hd for example).

Had reverted today to 7.4.1 and the problem was gone. There's something very wrong with this update.

Jun 25, 2009 7:20 AM in response to vabaist

I have had the same problem. I found that the only way to resolve is to reboot the Airport Extreme, or power down|up the drives.

Before 7.4.2, I have had 2 USB drives and a printer connected to it that have worked without incident. One of the HDD is used with TimeMachine without incident, too.

7.4.2 definitely appears flakey. I will likely downgrade.

Jun 25, 2009 7:35 PM in response to rbeer

Immediately after doing the 7.4.2 firmware upgrade to my Airport Extreme, I wasn't able to see or access the external HD (MyBook 1TB) anymore. Even resetting the Airport didn't do it. Disconnecting the external drive's USB cable from Airport didn't do it.

What DID do it was unplugging the power cord from the external hard drive and reconnecting it. After that, everything was back to (almost) normal.

My internet connection DOES seem slower, though, after the firmware update.

Jun 26, 2009 9:20 AM in response to rbeer

I have the same problem as described by others in this thread. A WD MyBook 500GB and a 1TB WD green drive in a Vantec enclosure are connected to my AEBS through a Belkin powered USB hub.

As soon as Time Machine starts backing up to the MyBook, the MyBook connection drops, and then about 30 seconds later, the connection to the 1TB drive drops as well.

Reverting back to 7.4.1 got everything working again.

Jun 27, 2009 8:37 AM in response to DougZ

USB Storage_Unavailable_After7.4.2 ++;

I have a 500GB USB drive attached to the AirPort Extreme. I had Time Machine working fine right up until I did the firmware update (7.4.2) to the AirPort Extreme. Now, backups periodically fail with an error message stating the disk can't be found - network connection was lost. At this point the drive is no longer mounted. Rebooting the AirPort Extreme will enable the disk to be remounted.

Jun 27, 2009 10:38 AM in response to rbeer

Same story as everybody else, except I got a feces sandwich with mine. Like always, I updated to 7.4.2 without hesitation. Within minutes, Time Machine started doing it's thing, then AirPort dropped the connection, then my backup became corrupted. I tried restarting the AirPort a few times, hoping it was a hiccup, with no luck. Downgrading back to 7.4.1 restored the drive sharing, but still left me with 48 hours of repairing the sparse bundle containing the Time Machine backup.

7.4.2 is not ready for prime time!!!!

Jun 27, 2009 5:04 PM in response to rbeer

Same issue for me. After upgrading to 7.4.2 I can see initially the AE attached USB HD (LaCie 500 GB) but as soon as the usage increases (download or TiVo streaming or time machine backup), the HD gets unmounted and disappears form the network view causing all applications to fail.

I downgraded now to 7.4.1 and all is back working fine.

I am using my AE on 5GhZ N.

GG

Jun 28, 2009 12:49 AM in response to JStroud

Thanks. Decided to try one more time with 7.4.2, reset my Airport and started again.
Connected the HD to the back of my mac then found a load of files in the trash so deleted them.
Set it up as a TM again (kept the original Sparse bundle file). The re-connected to the airport.
First back up was ok. lets see if it mounts automatically....

USB storage unavailable after 7.4.2 upgrade

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