Devlabel 0.38.05 is available here.

* Added the "reverseremap" action. This action is actually quite dangerous and should only be used when you know what you are doing. It wipes out the UUID values (column 3) from /etc/sysconfig/devlabel and using the last known device name (column 2), determines the UUID for that device and from then on devlabel will use that UUID to ensure consistent access. If a device renaming event has occurred on your system, using ReverseRemap will cause devlabel to ignore it and then think no renaming event ever happened.

This feature is especially useful for upgrading between devlabel versions where the UUID format has changed. Specifically, older versions of devlabel did not use the start sector of the partition as part of the UUID. If that older config file is then used on a newer devlabel, it will get confused. Using ReverseRemap is an easy way to get devlabel to repoll for the UUIDs based on the device names already in the config file.

You must specify --force in order for it to work. Without the --force, it prints a rather verbose warning explaining what ReverseRemap actually does. Thanks to Robert Hentosh for the idea (robert_hentosh@dell.com).

By Gary at 05:01 PM in Linux | Comments (0)