System information

34 Sharing and maintaining SLES 10 SP2 Linux under z/VM
on S10RWTST. In this fashion, there is a backup copy of Linux. If tests are not successful on the
test system, a fresh copy of Linux can quickly be rolled back from the maintenance system.
There are a number of ways to copy the disks. It is important that before copying, both the
source and target systems are shutdown and their virtual machines are logged off z/VM.
The MNT2TST EXEC is run from the CMSCLONE user ID. It tries to use FLASHCOPY to copy the
minidisks quickly. If this command is not supported or fails, it falls back to using the DDR
command. See section “MNT2TST EXEC” on page 92 for a complete listing of the source
code.
==> mnt2tst
Checking that source and target user IDs are logged off
HCPCQU045E S10RWMNT not logged on
HCPCQU045E S10RWTST not logged on
Do you want to copy R/W disks from S10RWMNT to S10RWTST? y/n
y
Copying minidisk 01B0 to 11B0 ...
00: Command complete: FLASHCOPY 01B0 0 END TO 11B0 0 END
Return value = 0
Copying minidisk 01B1 to 11B1 ...
00: Command complete: FLASHCOPY 01B1 0 END TO 11B1 0 END
Return value = 0
Copying minidisk 01B4 to 11B4 ...
00: Command complete: FLASHCOPY 01B4 0 END TO 11B4 0 END
Return value = 0
Copying minidisk 01B5 to 11B5 ...
00: Command complete: FLASHCOPY 01B5 0 END TO 11B5 0 END
Return value = 0
Copying minidisk 01B6 to 11B6 ...
00: Command complete: FLASHCOPY 01B6 0 END TO 11B6 0 END
Return value = 0
Copying minidisk 01B7 to 11B7 ...
00: Command complete: FLASHCOPY 01B7 0 END TO 11B7 0 END
Return value = 0
Copying minidisk 01B8 to 11B8 ...
00: Command complete: FLASHCOPY 01B8 0 END TO 11B8 0 END
Return value = 0
Cleaning up ...
00: 01B0 01B1 01B4 01B5 01B6 01B7 01B8 11B0 DETACHED
00: 11B1 11B4 11B5 11B6 11B7 11B8 DETACHED
1.5.6 Customizing and testing Linux on S10RWTST
Now that the fresh install has been copied to S10RWTST, log on to it. You should see a virtual
Network Interface Card (NIC) defined at virtual addresses 600-602. Via the sample PROFILE
EXEC and SWAPGEN EXEC, you should see the two VDISK swap spaces get created at virtual
addresses 1B2 and 1B3. You should then be prompted to IPL Linux from 1B0:
00: NIC 0600 is created; devices 0600-0602 defined
00: z/VM Version 5 Release 3.0, Service Level 0701 (64-bit),