Use the change-entry subcommand of the bootadm command to set certain boot attributes for a specified boot entry, or a comma-separated list of entries, in the GRUB menu. The entry is specified by either an entry title or an entry number. If multiple entries have the same title, all of the entries are affected.
For information about how to set attributes for specific boot entries by editing the GRUB menu at boot time, see Adding Kernel Arguments by Editing the GRUB Menu at Boot Time.
See Using Your Assigned Administrative Rights in Securing Users and Processes in Oracle Solaris 11.2 .
# bootadm list-menu
# bootadm change-entry [-P pool] {[entry-title[,entry-title...]}]
| -i entry-number[,entry-number]...]} { key=value [ key=value ...]
| set-default }When specifying a value that includes white space, you must enclose the value in single or double quotation marks.
For more information about each value that you can specify by using the change-entry subcommand, see the bootadm(1M) man page. Examples of common ways to use the change-entry subcommand follow this procedure.
# bootadm list-menu
You can set the title for a specified boot entry by using the change-entry subcommand of the bootadm command. When setting the title, you can specify either the entry number or the entry title. The following example shows how to set the title for a specified boot entry both ways. If multiple have the same title, all of the entries are affected.
Set the title for a boot entry by specifying the entry number, as follows:
# bootadm list-menu The location of the boot loader configuration file is /rpool/boot/grub default 1 console graphics timeout 30 0 Oracle Solaris 11/11 1 Oracle Solaris 11.2 2 Oracle Solaris 11_test # bootadm change-entry -i 2 title="Oracle Solaris 11-backup1" # bootadm list-menu The location of the boot loader configuration file is /rpool/boot/grub default 2 console graphics timeout 45 0 Oracle Solaris 11/11 1 Oracle Solaris 11.2 2 Oracle Solaris 11-backup1
Set the title for a boot entry by specifying the title, as follows:
# bootadm list-menu The location of the boot loader configuration file is /rpool/boot/grub default 1 console graphics timeout 30 0 Oracle Solaris 11/11 1 Oracle Solaris 11.2 2 Oracle Solaris 11_test # bootadm change-entry "Oracle Solaris 11_test" title="Oracle Solaris 11-backup1" # bootadm list-menu The location of the boot loader configuration file is /rpool/boot/grub default 2 console graphics timeout 45 0 Oracle Solaris 11/11 1 Oracle Solaris 11.2 2 Oracle Solaris 11-backup1Example 2-5 Changing a Boot Entry by Specifying Kernel Arguments
The following examples show how to set kernel boot arguments for a specified boot entry by using the change-entry subcommand of the bootadm command.
In this example, boot entry number 1 is set to boot in single-user mode:
# bootadm list-menu
The location of the boot loader configuration file is /rpool/boot/grub
default 1
console graphics
timeout 30
0 Oracle Solaris 11/11
1 Oracle Solaris 11.2
2 Oracle Solaris 11_test
# bootadm change-entry -i 1 kargs=-s
# bootadm list-menu -i 1
The location of the boot loader configuration files is: /rpool/boot/grub
title: Oracle Solaris 11.2
kernel: /platform/i86pc/kernel/$ISADIR/unix
kernel arguments: -s
boot archive: /platform/i86pc/$ISADIR/boot_archive
ZFS root pool: rpoolIn this example, multiple kernel arguments are specified for boot entry number 2:
# bootadm change-entry -i 2 kargs="-v -s"
# bootadm list-menu -i 2
The location of the boot loader configuration files is: /rpool/boot/grub
title: Oracle Solaris 11_test
kernel: /platform/i86pc/kernel/$ISADIR/unix
kernel arguments: -v -s
boot archive: /platform/i86pc/$ISADIR/boot_archive
bootfs: rpool/ROOT/snv_160-nightly-1In this example, the –v and –s options were specified, which boots the system to a single-user state in verbose mode.
Any time that you set an attribute (or multiple attributes) that include white space, you must enclose the values in single or double quotation marks.
Example 2-6 Changing a Boot Entry by Using the –B Option to Specify Kernel ArgumentsThe following examples show some of ways that you can set kernel arguments for a specific boot entry by using the –B option.
You would disable the e1000g network driver and load the kernel debugger at boot time, as follows:
# bootadm change-entry -i 0 kargs="-B disable-e1000g=true -k"
You can specify multiple –B options by using the bootadm change-entry command. For example, you would disable the e1000g driver and ACPI at the same time by using either of the following commands:
# bootadm change-entry -i 0 kargs="-B disable-e1000g=true -B acpi-user-options=2"
# bootadm change-entry -i 0 kargs="-B disable-e1000g=true,acpi-user-options=2"
You can also use the –B option to set certain boot attributes at boot time by editing the specified boot entry. For instructions, see Adding Kernel Arguments by Editing the GRUB Menu at Boot Time.
Example 2-7 Removing Previously Added Kernel Arguments From a Boot EntryIn the following example, a kernel argument (–s) is removed from a specific boot entry:
# bootadm list-menu -i 1 the location of the boot loader configuration files is: /rpool/boot/grub title: s11.2.backup kernel: /platform/i86pc/kernel/amd64/unix kernel arguments: -s boot archive: /platform/i86pc/amd64/boot_archive bootfs: rpool/ROOT/s11.2.backup # bootadm change-entry -i 1 kargs= # bootadm list-menu -i 1 the location of the boot loader configuration files is: /rpool/boot/grub title: s11.2.backup kernel: /platform/i86pc/kernel/amd64/unix kernel arguments: boot archive: /platform/i86pc/amd64/boot_archive bootfs: rpool/ROOT/s11.2.backup