Today, for the first time ever, my EVO 4G had an unexpected failure installing updates for some of my Android apps. All update attempts would inevitably end in an almost instant failure with the message that read:
Couldn't install on USB storage or SD card
The weird part was that some apps installed OK but some got stuck in a perma-fail mode and could no longer be updated. After mucking around for a bit, I dug into the logs and found the following relevant log line:
Failed to create secure container smdl2tmp1
Aha! Now what the heck is smdl2tmp1?