vmur - Receive dumps from the z/VM reader

The vmur command can receive a VMDUMP file from the z/VM® reader and convert it into a file that can be analyzed with crash.

Issue a command of the following form:

# vmur receive -c <spool ID> <dump file name>

Parameters

<spool ID>: Specifies the VMDUMP file spool ID.
<dump file name>: Specifies the name of the output file to receive the reader spool file's data.

For more details, see the vmur man page and Device Drivers, Features, and Commands on Red Hat® Enterprise Linux 8.5, SC34-7715

The vmur commands access the reader device, which has to be online. To set it online, it needs to be freed from cio_ignore:

# cio_ignore -r c
# chccwdev -e c
Setting device 0.0.000c online
Done

To receive and convert a VMDUMP spool file with spool ID 463 to a file named dump.lkcd on the Linux® file system in the current working directory:

# vmur rec -c 463 dump.lkcd