Using the HMC Web Services API to boot in DPM mode

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Red Hat Enterprise Linux 9.2 DPM partition

You can boot Linux® in a DPM partition remotely by using the HMC Web Services API. For information about the API, see Hardware Management Console Web Services API for your IBM Z® or LinuxONE hardware.

You can find a client application that uses this API at https://github.com/zhmcclient/zhmccli. The examples that follow are based on this application, which provides the zhmc command as its user interface.

Hint: The zhmc command is case sensitive. For hardware and partition specifications, use the capitalization as shown in the HMC interface and the corresponding HMC API queries.

Booting from the configured boot device

The following example makes these assumptions about the hardware system, LPAR, and boot device:
  • The name of the IBM Z or LinuxONE system is T46.
  • The name of the DPM partition is t46dp79.
  • A boot device has been configured for this DPM partition. For information about configuring boot devices for DPM partitions, see step 2 in Booting in a DPM partition from a SCSI boot device.
To start the IPL and boot process, issue:
# zhmc partition start T46 t46dp79
To view the operating system messages, issue:
# zhmc partition console T46 t46dp79
For SCSI boot devices: For information about IPL progress messages that are issued before the Linux kernel gets control, see Small Computer Systems Interface (SCSI) IPL Machine Loader Messages, SC28-7006.