The kernel zone boot loader manages booting operations on the kernel zone. To invoke the boot loader, the kernel zone must be in the ready or installed state. You can use the kernel zone boot loader to perform the following operations:
List available boot environments
Boot the zone to an alternate boot environment
Use the zoneadm boot command to invoke the kernel zone boot loader. You must also invoke the zone console when you invoke the kernel zone boot loader. The boot loader output will appear in the zone console.
For information about creating and managing boot environments on the operating system level, see Chapter 1, Introduction to Managing Boot Environments in Creating and Administering Oracle Solaris 11.3 Boot Environments. Additional information for managing zones and boot environments is available in Chapter 2, beadm Zones Support in Creating and Administering Oracle Solaris 11.3 Boot Environments.
For more information, see Assigning Rights to Non-Root Users to Manage Zones in Creating and Using Oracle Solaris Zones.
$ zlogin -C zonename
For example, to log into the console on kzone1:
global$ zlogin -C kzone1
$ zoneadm -z zonename boot -- -L
The following example shows sample output.
global$ zoneadm -z kzone2 boot -- -L [Connected to zone 'kzone2' console] 1 kz-130118 (rpool/ROOT/kz-130118) 2 kz-1 (rpool/ROOT/kz-1) 3 solaris-5 (rpool/ROOT/solaris-5) 4 solaris-7 (rpool/ROOT/solaris-7) Select environment to boot: [ 1 - 4 ]:
$ zoneadm -z zonename boot -- -Z boot-environment
For example:
global$ zoneadm -z kzone1 boot -- -Z rpool/ROOT/solaris-backup-1
The following example shows the zone console output for alternate boot environments for the kernel zone kzone1. The kernel zone host hardware is a SPARC based system.
[Connected to zone 'kzone1' console] NOTICE: Entering OpenBoot. NOTICE: Fetching Guest MD from HV. NOTICE: Starting additional cpus. NOTICE: Initializing LDC services. NOTICE: Probing PCI devices. NOTICE: Finished PCI probing. SPARC T4-2, No Keyboard Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved. OpenBoot 4.36.0.build_05, 2.0000 GB memory available, Serial #1845652596. Ethernet address 0:0:0:0:0:0, Host ID: 6e026c74. Boot device: disk0 File and args: -L 1 Oracle Solaris 11.2 SPARC 2 bootenv123 3 bootenv456 Select environment to boot: [ 1 - 3 ]: 2 To boot the selected entry, invoke: boot [<root-device>] -Z rpool/ROOT/bootenv123 Program terminated ok boot -Z rpool/ROOT/bootenv123 [NOTICE: Zone rebooting] NOTICE: Entering OpenBoot. NOTICE: Fetching Guest MD from HV. NOTICE: Starting additional cpus. NOTICE: Initializing LDC services. NOTICE: Probing PCI devices. NOTICE: Finished PCI probing. SPARC T4-2, No Keyboard Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved. OpenBoot 4.36.0.build_05, 2.0000 GB memory available, Serial #1845652596. Ethernet address 0:0:0:0:0:0, Host ID: 6e026c74. ... Hostname: kzone1 kzone1 console login:Example 38 Selecting and Booting Alternate Boot Environments on an x86 Based System
The following example shows the zone console output for alternate boot environments for the kernel zone kzone1. The kernel zone host hardware is an x86 system.
[Connected to zone 'kzone1' console] 1 boot-2 (rpool/ROOT/boot-2) 2 Oracle Solaris 11.2 x86 (rpool/ROOT/solaris) 3 boot-1 (rpool/ROOT/boot-1) Select environment to boot: [ 1 - 3 ]:2 Boot device: disk0 File and args: reading module /platform/i86pc/amd64/boot_archive...done. reading kernel file /platform/i86pc/kernel/amd64/unix...done. SunOS global 5.11 11.2 i86pc i386 i86pc Copyright (c) 1983, 2014, Oracle and/or its affiliates. All rights reserved. Hostname: kzone1 ... kzone1 console login: