Next steps

You might need to issue a UIMRESET -l command before you use z Systems Development and Test Environment with an activated USB hardware device.

These cases are the most common reasons to issue the command:

If you were using a single local USB hardware device, and are replacing it with another USB hardware device or want to use multiple USB hardware devices.
If you change the disk containing the Linux partition or upgrade the Linux kernel.
If you are using a product license server or license manager and the UIM serial number in the local database conflicts with a serial number in the license server.

For more information about UIM serial numbers, how they are assigned, and when resetting the UIM serial numbers is required, see zPDT license servers.

If you worked through the previous sections of this IBM Knowledge Center, you now have one or more activated license keys that are ready to enable operation of one or more instances of z Systems Development and Test Environment. For the next steps to follow to use the offering, see Installing an operating system on z Systems Development and Test Environment.