第1章 Installing from an RPM package
You can install MicroShift from an RPM package on a machine with a supported version of Red Hat Enterprise Linux (RHEL).
1.1. Before installing MicroShift from an RPM package
Preparation of the host machine is recommended before installing MicroShift for memory configuration and FIPS mode.
1.1.1. Configuring volume groups
MicroShift uses the logical volume manager storage (LVMS) Container Storage Interface (CSI) plugin for providing storage to persistent volumes (PVs). LVMS relies on the Linux logical volume manager (LVM) to dynamically manage the backing logical volumes (LVs) for PVs. For this reason, your machine must have an LVM volume group (VG) with unused space in which LVMS can create the LVs for your workload’s PVs.
To configure a volume group (VG) that allows LVMS to create the LVs for your workload’s PVs, lower the Desired Size of your root volume during the installation of RHEL. Lowering the size of your root volume allows unallocated space on the disk for additional LVs created by LVMS at runtime.
1.1.2. Prepare for FIPS mode
If your use case requires running MicroShift containers in FIPS mode, you must install RHEL with FIPS enabled. After the worker machine is configured to run in FIPS mode, your MicroShift containers are automatically configured to also run in FIPS mode.
Because FIPS must be enabled before the operating system that your node uses starts for the first time, you cannot enable FIPS after you deploy a node.
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