In the following example, a specialized boot menu with the title boot1 will be applied to the image. The timeout attribute specifies the time before the default boot entry is automatically activated.
<boot_mods title="boot1" timeout="5">
Within the boot_mods element, you can add individual boot menu entries by adding a new boot_entry element for each new entry. Entries are added sequentially to the boot menu in the order indicated by the insert_at attribute value of start or end for each boot entry.
The following example shows a sample individual boot_entry element.
<boot_entry> <title_suffix>with screen reader</title_suffix> <kernel_args>-B assistive_tech=reader</kernel_args> </boot_entry>
For detailed information, see the dc_manifest(4) man page.