System information
Sharing and maintaining SLES 10 SP2 Linux under z/VM 43
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These messages show that the boot.findself script ran and modified the IP address and
host name. You should now be able to start an SSH session with the cloned system at the
updated IP address.
You can view the file systems with the df -h command:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/dasdb1 341M 79M 245M 25% /
udev 121M 128K 121M 1% /dev
/dev/dasda1 41M 13M 26M 34% /boot
/dev/dasdf1 69M 4.1M 61M 7% /local
/dev/dasdi1 333M 20M 297M 7% /opt
/dev/dasdh1 1.6G 666M 839M 45% /usr
/dev/dasdg1 706M 61M 610M 9% /var
This shows the file system layout of a cloned read-write Linux system.
1.6 Building a read-only root system
You should now have a read-write Linux system with tools to maintain copies of Linux for test,
maintenance and cloning. It is now time to tackle creating a read-only root system.
A summary of the steps are as follow:
1. “Defining a user ID for the first read-only root system”
2. “Creating a prototype read-only root Linux” on page 44
3. “Copying read-only Linux to gold disks” on page 49
4. “Cloning a read-only Linux” on page 50
1.6.1 Defining a user ID for the first read-only root system
A user ID S10ROGLD is created with the following directory definition. This is where the
read-only system will be created. Note that all minidisks are read-write. This is necessary as
the process of moving from a read-write to a read-only system requires write access to
various disks as read-write for certain periods of time.
USER S10ROGLD PASSWD 256M 1G G
INCLUDE RORDFLT
OPTION APPLMON
MDISK 01B0 3390 5009 0060 DM63C9 MR PASSWD PASSWD PASSWD
MDISK 01B1 3390 5069 0500 DM63C9 MR PASSWD PASSWD PASSWD
MDISK 01B4 3390 5569 0550 DM63C9 MR PASSWD PASSWD PASSWD
MDISK 01B5 3390 6119 0100 DM63C9 MR PASSWD PASSWD PASSWD
MDISK 01B6 3390 6219 1019 DM63C9 MR PASSWD PASSWD PASSWD
MDISK 01B7 3390 7238 2290 DM63C9 MR PASSWD PASSWD PASSWD
MDISK 01B8 3390 9528 0489 DM63C9 MR PASSWD PASSWD PASSWD
The directory changes are brought online and the user ID is given access to system’s
VSWITCH.