I have exactly this problem with VPN client and my mac ox (darwin).
The confounding part is that I used to have a version of vpn client on this machine in the past, and now none of of the versions work due to their dmg files not being mountable ("no mountable file systems").
I feel like I've tried everything. I've used several different disk mounters on this file, and I *have* been able to open Other dmg files, so I feel confident that the problem is with the file I'm downloading. But I've downloaded this file from several places all over the internet, and they all have this problem. Also, if the problem is really with the file, how did I obtain it before?
When I run Disk-utility on the dmg in question, I get the following:
Error: This disk needs to be repaired. Click Repair Disk.
Verifying volume disk1s1
** /dev/disk1s1
Invalid BS_jmpBoot in boot block: 66671c
Error: This disk needs to be repaired. Click Repair Disk.
Verify and Repair volume disk1s1
** /dev/disk1s1
Invalid BS_jmpBoot in boot block: 66671c
Volume repair complete.Updating boot support partitions for the volume as required.Error: Disk Utility cant repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
I got this file from the IT website of large university. I can't believe I'm the only one experiencing this.
Please help!