NAME

loadbsd — load and boot NetBSD/x68k kernel from Human68k

SYNOPSIS

loadbsd.x [-hvV] [-abDNqs] [-r root_device] kernel_file

loadbsd is a program runs on Human68k. It loads and executes the specified NetBSD/x68k kernel.

The options (for loadbsd itself) are as follows:

-h: Show help and exit.
-N: Do not execute the kernel, if specified in combination with boot options.
-v: Enable verbose mode.
-V: Print version of loadbsd and exit.

The options for NetBSD kernel are as follows:

-a: Auto (multi-user) boot. This disables -s flag.
-b: Ask boot device during boot. Pass RB_ASKNAME boot flag to the kernel.
-D: Enter kernel debugger. Pass RB_KDB boot flag to the kernel.
-r root_device: Specify boot device, which shall be mounted as root device. The default device is ‘sd@0,0:a’. Note that the boot device name is not the same as that of NetBSD. See BOOT DEVICE NAMES below.
-q: Boot the system in quiet mode. Pass AB_QUIET boot flag to the kernel.
-s: Single user boot. Pass RB_SINGLE boot flag to the kernel. This disables -a flag. This flag is set by default.

Although listed separately, the options may be in any order.

The format of boot device names is:

[/interface/]dev@unit[,lun][:partition]

interface: SCSI interface type. One of: ‘spc@0’, ‘spc@1’, ‘mha@0’. If the dev is a SCSI device, and interface is omitted, the current boot interface is used.
dev: Device type. One of: ‘fd’ (floppy disk drive), ‘sd’ (SCSI disk), ‘cd’ (SCSI CD-ROM), ‘md’ (Memory disk).
unit: Device unit #. You must specify the target SCSI ID if dev is a SCSI device.
lun: SCSI LUN #. 0 is assumed if omitted.
partition: Partition letter of device. Partition ‘a’ is used if omitted.

The loadbsd utility first appeared in NetBSD 1.4.

loadbsd reads the entire kernel image at once, and requires enough free area on the main memory.