Updating CP For example, if MAINT's virtual machine has entries for the real
system residence volume at address 330, and for a minidisk replica at
address 331, you may detach the real system residence volume and define
the minidisk at that address:
detach 330 define 331 as 330 Now you can IPL the CP nucleus, specifying the address of your
virtual card reader. When the load operation completes, the message "NUCLEUS LOADED ON SYSRES" is displayed, followed by a message
indicating a disabled wait state PSW, the normal termination of the
standalone loader program.
ipl OOc NUCLEUS LOADED ON SYSRES DMKDSP450W CP ENTERED; DISABLED WAIT PSW CP When you IPL the nucleus, the load map is spooled to your virtual
printer. You must issue the CLOSE command to close the spool file. If
you want to retain a copy of the load map as a CMS disk file, you first
issue the command:
spool printer to *
so that the load map is routed to your card reader and you can later use
the CMS READCARD command to write the load map on disk.
Now, define your console address to be the same as defined in the RIOGEN macro in DMKRIO. Then you can IPL the system residence device,
which is the virtual disk with an address of 330. def 009 as cuu CONS cuu DEFINED
ipl 330 The following example shows the IPL of the nucleus. The two error
messages (both DMKLNK108E) occur because UDISKl and UDISK2 are not
defined in MAINT's virtual machine configuration. VM/370 VERSION n LEVEL 0 NOW 14:53:07 EST THURSDAY 03/28/74 CHANGE TOD CLOCK (YESINO) :no 14:53:50 DMKLNK108E CMSSYS 190 NOT LINKED; VOLID UDISK2 NOT MOUNTED RRRR •.•• RING •••• GGGG 14:53:50 DMKLNK108E OPERATOR 191 NOT LINKED; VaLID UDISKl NOT MOUNTED RRRR •••• RING •••• GGGG 14:53:50 START «COLDIWARMICKPTIFORCE) (DRAINISHUTDOWN) : shutdown 14:53:50 AUTO LOGON *** OPERATOR USERS = 001 BY SYSTEM DMKCPI960W SYSTEM WARM START DATA SAVED DMKCPI961W SYSTEM SHUTDOWN COMPLETE DMKDSP450W CP ENTERED; DISABLED WAIT PSi CP After you check the new CP, you may redefine your console and IPL the eMS system (CMS accepts only 009 and 01F as valid console addresses) • After you IPL CMS, you can use the DDR command to create a backup copy
of the CP nucleus (which can then be restored to the real system).
346 IBM VM/370 Planning and System Generation Guide

Updating CP Define your input unit as the address of your system residence device. Your output unit is the tape (181) that is attached to your virtual
machine. When you enter the DUMP statement with the NUCLEUS operand,
DDR creates a copy of the nucleus that was just loaded.
The sequence of commands and responses is:
def cuu as 009 CONS 009 DEFINED
ipl cms CMS ••• mm/dd/yy
ddr
ENTER: in 330 3330 sysres
ENTER: out 181 2400 ENTER: dump nuc DUMPING SYSRES END OF DUMP ENTER:
END OF JOB R; T=0.21/2.63 15:04:04 You created a backup copy of the CP nucleus. This copy may later be
restored using the standalone version of the DDR program on the real
machine. Part 5. Updating 347