User`s guide

KA52/53/54 Firmware Commands

3.1 Console I/O Mode Control Characters

Table 3–6 (Cont.) Console Command Summary

Command Qualiﬁers Argument Other(s)

SHOW RLV12 — — —

SHOW SCSI — — —

SHOW TRANSLATION {phys_address} —

SHOW UQSSP — — —

SHOW VERSION — — —

START — {address} —

TEST — {test_number} [{parameters}]

UNJAM — — —

X — {address} {count}

3.2 Console Commands

The following sections describe all the console commands, give the command

formats with their qualiﬁers, and describe the signiﬁcance of each qualiﬁer.

3.2.1 BOOT

The BOOT command initializes the processor and transfers execution to

Virtual Memory Boot (VMB). VMB attempts to boot the operating system from

the speciﬁed device or list of devices, or from the default boot device if none is

speciﬁed. The console qualiﬁes the bootstrap operation by passing a boot ﬂags

bitmap to VMB in R5.

Format:

BOOT [qualiﬁer-list] [{boot_device},{boot_device},...]

If you do not enter either the qualiﬁer or the device name, the default value is

used. Explicitly stating the boot ﬂags or the boot device overrides, but does not

permanently change, the corresponding default value.

When specifying a list of boot devices (up to 32 characters, with devices

separated by commas and no spaces), the system checks the devices in the

order speciﬁed and boots from the ﬁrst one that contains bootable software.

Note

If included in a string of boot devices, the Ethernet device, EZA0,

should be placed only as the last device of the string. The system will

3–12 KA52/53/54 Firmware Commands