The following procedures are provided in this section:
How to Set Attributes for a Specified Boot Entry in the GRUB Menu
On systems that support GRUB Legacy, the GRUB configuration and the GRUB menu is primarily managed by editing the menu.lst file. On systems that support GRUB 2, the grub.cfg file is used. However, this file is not manually edited. Instead, the file is managed by using the boot administration interface, bootadm. The bootadm command can be used to administer most of the tasks that were previously done by editing the menu.lst file. These tasks include administering boot loader settings, the GRUB menu, as well as individual attributes of a particular boot entry.
The following bootadm subcommands support the administration of the GRUB 2 configuration:
Adds a boot entry to the GRUB menu.
Changes the attributes of a specified boot entry in the GRUB menu.
Generates a new boot loader configuration file.
Installs the system boot loader. This subcommand applies to both x86 and SPARC platforms.
Displays the current boot entries in the GRUB menu.
The –P option supports displaying boot entries for a specified root pool.
View individual menu entries by title or entry number, as follows:
# bootadm list-menu -i 0
the location of the boot loader configuration files is: /rpool/boot/grub
title: Oracle Solaris 11 FCS
kernel: /platform/i86pc/kernel/$ISADIR/unix
kernel arguments: -B $ZFS-BOOTFS -v
boot archive: /platform/i86pc/$ISADIR/boot_archive
ZFS root pool: rpool
Removes a boot entry from the GRUB menu.
Maintains the GRUB menu. This subcommand is used to set a particular GRUB menu entry as the default and to set other menu options and boot loader options.
The –P option supports changing menus on multiple root pools.
The following procedures describe how to use the bootadm command to manage the GRUB configuration and the GRUB menu. For more complete information, see the bootadm(1M) man page.