I've deployed a number of laptops to our staff with encrypted LVM. I've used the alternative CD, whole disk & guided partitioning. This is the second laptop that came back to me with the same symptoms, namely the issued password doesn't work any more.
Both laptops are Probook 4530s (i5, 4 GB, 600GB). It's no keyboard mapping issue, there is only one keyboard installed and the pass is ASCII + numbers, no special chars. There is zero chance both users messed around with the disk utility and tried to change it.
I've researched the issue after the first laptop came back to me, had no luck finding anything similar and wrote it off as bad luck. But two laptops in 14 days, I'm freaking out here, encrypted FS was the primary reason we chose Ubuntu for deployment.
I suppose there is no way I can access the FS.
cryptsetup luksDump /dev/sda5 lists a single key slot.
So is this a known bug? Are there guidelines as to what to watch out for in regards to deployment on a laptop, like don't hibernate or whatever?
* UPDATE *
After wiping the disk, installing a fresh Ubuntu 11.10, doing the update & upgrade and verified everything is working, I've shipped the laptop back. Less than 24 hours later, it's the same issue. The password doesn't work any more.
I mean, if it's a faulty disk or bad RAM or whatever it is inconceivable that it manifests itself by screwing up just the password. Is it maybe an issue with the disk size, should I make the partition smaller or eliminate swap?