Red Hat ENTERPRISE LINUX AS 2.1 - Guida di Installazione Scaricare il pdf (Pagina 14)

6 Chapter 1. Steps to Get You Started

BROADCAST="192.168.17.255"

SEARCHDNS="example.com:zSeries.example.com"

GATEWAY="192.168.17.254"

DNS="192.168.17.1"

MTU="4096"

The following parameters are required and must be included in the parameter ﬁle:

• DASD=<dasd-list>

Where <dasd-list> represents the list of DASD devices to be used by Red Hat Enterprise Linux.

Although autoprobing for DASDs is done if this parameter is omitted, it is highly recommended

to include the DASD= parameter, as the device numbers (and therefore the device names) can vary

when a new DASD is added to the Red Hat Enterprise Linux guest. This can result in an unusable

system.

• root=<file-system>

where <file-system> represents the device on which the root ﬁle system can be found. For

installation purposes, it should be set to /dev/ram0, which is the ramdisk containing the Red Hat

Enterprise Linux installation program.

The following parameters are required to set up networking:

• SUBCHANNELS=

Provides required device bus IDs for the various network interfaces.

qeth: SUBCHANNELS="<read_device_bus_id>,<write_device_bus_id>,

<data_device_bus_id>"

lcs: SUBCHANNELS="<read_device_bus_id>,<write_device_bus_id>"

ctc: SUBCHANNELS="<read_device_bus_id>,<write_device_bus_id>"

For example (a sample qeth SUBCHANNEL statement):

SUBCHANNELS=0.0.0600,0.0.0601,0.0.0602

To force a speciﬁc CTC protocol, additionals parameters can be added. For example:

CTCPROT=<n>

Where <n> is one of the following:

· 0 for compatibility mode (used with non-Linux peers other than S/390 and zSeries operating

systems)

· 1 for extended mode

· 2 for CTC-based tty (only supported on Linux-to-Linux connections)

· 3 for compatibility mode with S/390 and zSeries operating systems

• PEERID=<userid>

Where <userid> represents the ID of the guest machines you want to connect to. Note that the

ID must be written in capital letters. For example, a PEERID connection to a z/VM TCP/IP service

machine should be written as:

PEERID=TCPIP

Note that the PEERID parameter replaces the IUCV parameter used with the Linux kernel version

2.4.

The following parameters are optional:

• HOSTNAME=<string>

Where <string> is the hostname of the newly-installed Linux guest.

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Red Hat ENTERPRISE LINUX AS 2.1 - Guida di Installazione Pagina 14

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