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Chapter 4 119
Boot Console Handler
Initial System Loader (ISL) Environment
ISL User Commands
The following commands that are available in the ISL environment allow you to display
and modify the boot characteristics of the system.
• help - lists ISL command menu and available utilities.
• display - displays the boot and console paths in Stable Storage and the current setting
of the ISL Boot Flags.
• primpath - modifies the primary boot path entry in Stable Storage. The entry in Stable
Storage for the primary boot device begins at byte address 0 and ends at 31.
• altpath - modifies the alternate boot path entry in Stable Storage. The entry for the
alternate boot device begins at byte address 128 and ends at 159.
• conspath - modifies the console path entry in Stable Storage. The entry in Stable
Storage for the console device begins at byte address 96 and ends at byte address 127.
The entry for the keyboard and mouse devices begins at byte address 160 and ends at
191.
• listautofl or lsautofl - lists the contents of the (HP-UX) autoboot file.
• support - boots the Support Tape from the boot device.
• readss - displays 4 bytes (one word) from Stable Storage. The readss command
requires a decimal number between 0 and 255 to address four bytes in Stable Storage.