If a system is turned off, turning it on starts the multiuser boot sequence. The following procedures show how to boot to different run levels from the ok PROM prompt. These procedures assume that the system has been cleanly shut down, unless stated otherwise.
Use the who -r command to verify that the system is brought to the specified run level. For a description of run levels, see Chapter 18, Managing Services (Overview).
Use this procedure to boot a system that is currently at run level 0 to run level 3.
Boot the system to run level 3.
ok boot |
The automatic boot procedure displays a series of startup messages, and brings the system to run level 3. For more information, see the boot(1M) man page.
Verify that the system has booted to run level 3.
The login prompt is displayed when the boot process has finished successfully.
hostname console login: |
The following example displays the messages from booting a system to run level 3.
ok boot Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 333MHz) OpenBoot 3.15, 128 MB memory installed, Serial #number. Ethernet address number, Host ID: number. Rebooting with command: boot Boot device: /pci@1f,0/pci@1,1/ide@3/disk@0,0:a File and args: kernel/sparcv9/unix SunOS Release 5.10 Version s10_60 64-bit Copyright 1983-2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. configuring IPv4 interfaces: hme0. add net default: gateway 172.20.27.248 Hostname: starlite The system is coming up. Please wait. NIS domain name is example.com starting rpc services: rpcbind keyserv ypbind done. Setting netmask of hme0 to 255.255.255.0 Setting default IPv4 interface for multicast: add net 224.0/4: gateway starlite syslog service starting.The system is ready. Starting Sun(TM) Web Console Version 2.1-dev.. volume management starting. The system is ready. starlite console login: |
In the preceding example, sparcv9 was used as an example only. This string matches the output of the isainfo -k command.
Use this procedure to boot a system that is currently at run level 0 to run level S. This run level is used for system maintenance tasks, such as backing up a file system.
Boot the system to run level S.
ok boot -s |
Type the superuser password when the following message is displayed:
SINGLE USER MODE Root password for system maintenance (control-d to bypass): xxxxxx |
Verify that the system is at run level S.
# who -r |
Perform the maintenance task that required the run level change to S.
After you complete the system maintenance task, type Control-D to bring the system to the multiuser state.
The following example displays the messages from booting a system to run level S.
ok boot -s . . . Sun Microsystems Inc. SunOS 5.10 Version Generic_120012-14 32-bit Copyright 1983-2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. configuring IPv4 interfaces: hme0. Hostname: starlite SINGLE USER MODE Root password for system maintenance (control-d to bypass): xxxxxx single-user privilege assigned to /dev/console. Entering System Maintenance Mode Oct 14 15:01:28 su: 'su root' succeeded for root on /dev/console Sun Microsystems Inc. SunOS 5.10 # who -r . run-level S Sep 19 08:49 S 0 ? (Perform some maintenance task) # ^D |
Use this boot option when you need to specify an alternate kernel or /etc/system file.
To specify an alternate /etc/system file when booting a SPARC based system interactively by using the boot -a command, you must perform the following steps before the system is booted.
1. Make backup copies of the /etc/system and boot/solaris/filelist.ramdisk files.
# cp /etc/system /etc/system.bak # cp /boot/solaris/filelist.ramdisk /boot/solaris/filelist.ramdisk.orig |
2. Add the etc/system.bak file name to the /boot/solaris/filelist.ramdisk file.
# echo "etc/system.bak" >> /boot/solaris/filelist.ramdisk |
3. Update the boot archive.
# bootadm update-archive -v |
Boot the system interactively.
ok boot -a |
Answer the following system prompts:
When prompted, enter the name of the kernel to use for booting.
Press enter to use the default kernel file name. Otherwise, provide the name of an alternate kernel, press Enter.
When prompted, provide an alternate path for the modules directories.
Press enter to use the default module directories. Otherwise, provide the alternate paths to module directories, press Enter.
When prompted, provide the name of an alternate system file.
Type /dev/null if your /etc/system file has been damaged.
When prompted, enter the root filesystem type.
Press enter to select UFS for local disk booting, which is the default, or enter NFS for network booting.
When prompted, enter the physical name of root device.
Provide an alternate device name or press return to use the default.
If you are not prompted to answer these questions, verify that you typed the boot -a command correctly.
In this example, the default choices (shown in square brackets []) are accepted. For instructions and an example of booting an alternate file system by using the boot -a command, see SPARC: How to Boot a System Interactively.
ok boot -a . . . Rebooting with command: boot -a Boot device: /pci@1f,0/pci@1,1/ide@3/disk@0,0:a File and args: -a Enter filename [kernel/sparcv9/unix]: Press Return Enter default directory for modules [/platform/SUNW,Ultra-5_10/kernel /platform/sun4u/kernel /kernel /usr/kernel]: Press Return Name of system file [etc/system]: Press Return SunOS Release 5.10 Version S10_60 64-bit Copyright (c) 1983-2004 by Sun Microsystems, Inc. All rights reserved Use is subject to license terms. root filesystem type [ufs]: Press Return Enter physical name of root device [/pci@1f,0/pci@1,1/ide@3/disk@0,0:a]: Press Return configuring IPv4 interfaces: hme0. Hostname: starlite The system is coming up. Please wait. checking ufs filesystems . . . The system is ready. starlite console login: |
Become superuser or assume an equivalent role.
Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.
Obtain a copy of an existing Oracle Solaris kernel and rename it.
Add the kernel that you copied and renamed in Step 2 to the /etc/boot/solaris/filelist.ramdisk file.
# echo "kernel.name" >> /boot/solaris/filelist.ramdisk |
Verify that the alternate kernel has been added to the /etc/boot/solaris/filelist.ramdisk file.
# cat > /etc/boot/solaris/filelist.ramdisk |
Update the boot archive by using the bootadm command.
# bootadm update-archive |
Change to run level 0.
# init 0 |
The ok PROM prompt is displayed.
Boot the alternate kernel.
ok boot alternate-kernel |
For example:
ok boot kernel.myname/sparcv9/unix |
After the system has booted, verify that the alternate kernel that was booted.
# prtconf -vp | grep whoami |
# cp -r /platform/sun4v/kernel /platform/sun4vu/kernel.caiobella # echo "kernel.caiobela" >> /boot/solaris/filelist.ramdisk # cat > /etc/boot/solaris/filelist.ramdisk /platform/sun4v/kernel.caiobella ^D (control D) ok setenv boot-file kernel.caiobells/sparcv9/unix ok printenv boot-file boot-file = kernel.caiobella/sparcv9/unix ok boot SC Alert: Host System has Reset SC Alert: Host system has shut down. Sun Fire T200, No KeyboardCopyright 2006 Sun Microsystems, Inc. All rights reserved. OpenBoot 4.25.0.build_01***PROTOTYPE BUILD***, 32760 MB memory available, Serial #69060038. Ethernet address 0:x:4f:x:c5:c6, Host ID: 8xxc5c6. Rebooting with command: boot Boot device: /pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@2/disk@0,0:a File and args: kernel.caiobella/sparcv9/unix SunOS Release 5.10 Copyright 1983-2007 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. DEBUG enabled misc/forthdebug (176650 bytes) loaded Hostname: seasonz NIS domain name is lab.domain.sun.com Reading ZFS config: done. seasonz console login: Password: Last login: Mon Nov 12 18:02:00 on console Sun Microsystems Inc. SunOS 5.10 . . . You have new mail. # # # prtconf -vp | grep whoami whoami: '/platform/sun4v/kernel.caiobella/sparcv9/unix' |