starter Systems ALLOCATION RESULTS l.Jll 3330 J140 112Q PERM 000 019 000 012 000 023 000 008 DRCT 020 023 013 016 024 021 009 012 TEMP 024 100 011 201 028 113 013 216 PERM 101 102 202 202 114 176 277 217 TEMP 103 180 203 389 111 310 218
399 __ TDSK 181 202 390 402 311 346 400 554 PERM 403 807 347 697 DEVICE 131 VOLUME VMRELn ALLOCATION ENDED
ENTER FORMAT OR ALLOCATE: Step 3. Label the Starter System Volume Use the Format/Allocate program to label the scratch volume that is to
contain the CP starter system. This label must be CPRnLO. You can
format and label this volume, or just label it. Formatting is
unnecessary (unless the pack has never been initialized before) because
you are going to restore the starter system to this volume. If you get
an I/O error trying to label the pack, format only cylinder zero and
then try to label the pack again. In the following example, the
responses (format, 130, device type, label, and CPRnLO) to the prompting
messages put the label CPRnLO on the real disk at address 130. ENTER FORMAT OR ALLOCATE: format FORMAT FUNCTION SELECTED
ENTER DEVICE ADDRESS (CCU):130 ENTER DEVICE TYPE:device type
ENTER START CYLINDER (XXX) OR "LABEL": label
ENTER DEVICE LABEL: CPRnLO LABEL IS NOW CPRnLO - When the Format/Allocate program is complete, it responds:
ENTER FORMAT OR ALLOCATE: You need not respond to this message. Press the PAl key twice to return
to CP mode.
Now the starter system volume is available and ready for the data
that is to be placed on it by the DASD Dump Restore service program
(module DMKDDR). The DASD Dump Restore program is the second file on the
starter system tape. Step 4. Load the DASD Dump Restore Program from
the Starter System Tape IPL the starter system tape a second time to load the DASD Dump Restore
(DDR) program. It is the second file on the starter system tape. Do
not rewind the tape, because the next file is needed in Step 5. Step 5. Restore the Starter System to Disk
Respond to the DDR prompting messages to restore the starter system.
Part 3. Generating VM/370 (CP, CMS, RSCS, and IPCS) 231

starter Syste ms
In the following example, the starter system is restored from the 2400 series tape drive at address 280 to the real disk at address 130 (and with label CPRnLO). The console output is: VM/370 DASD DUMP/RESTORE PROGRAM RELEASE n
ENTER CARD READER ADDRESS OR CONTROL STATEMENTS ENTER: sysprint cuu (cuu=real printer address)
ENTER: input 280 2400 ENTER: output 130 device type CPRnLO ENTER: restore all RESTORING CPRnLO END OF RESTORE ENTER: (null line --END key on 3215 Enter key on 3277)
END OF JOB The DDR program restores the third file on the starter system tape to
the disk labeled CPRnLO. The restored disk contains: • A 191 minidisk for the userid CPGEN, which contains a sample VM/370 directory (RELEASEn DIRECT), as well as sample source for DMKSYS, DMKSNT, and DMKFCB • A VM/370 starter system nucleus • A complete CMS system residence volume • A complete CP system containing macro libraries and text files
When the
procedure.
24, and 25.
disk is restored, continue with the system generation
The format of the restored disk is shown in Figures 22, 23, I Real I Cylinder I I 0 1 I Number of
Cylinders
1----------------- I 2
contents VM/370 directory
191 minidisk for the IVPM1 user
191 minidisk for the IVPM2 user
1-------------------------------------------------------------------- 1 3-6 1 1 7 I , 8-9 I 1 10 , 1 11-33 I 1 34 I I 35-169 1 1 1 I 1------- I 170-202 1 L 4 2
22
135
33 CP nucleus
Warm start data I/O Error Recording area Spool file checkpoint
Spooling and paging space
191 minidisk for the CPGEN user 190 minidisk (the eMS system disk) for the CMSSYS user The nucleus occupies the last two
cylinders of the minidisk.
194 minidisk of the CPGEN user -it contains
the CP object modules (text decks)
Figure 22. Format of a 2314 Restored Disk
232 IBM VM/370 Planning and System Generation Guide