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RBCONFIG.DOC
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1991-08-26
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[ RBCONFIG.DOC - Dynamic RPL CONFIG.SYS Driver Documentation - 28-Aug-1991 ]
Although LANtastic (tm) supports remote program loading (RPL), which allows
diskless workstations to boot MS-DOS from a diskette image stored on a
network server, all workstations on a network must share the same boot
image and consequently, the same CONFIG.SYS file. This makes it impossible
to load different device drivers or set different tuning parameters (FILES=,
BUFFERS=, etc.) based on each workstation's intended use.
RBCONFIG.SYS overcomes this limitation by allowing you to specify, on a
node address basis, the exact CONFIG.SYS statements to apply to each
workstation at boot time. RBCONFIG.SYS is loaded as the first item in
CONFIG.SYS, and the various sections of CONFIG.SYS statements are separated
by special keyword lines. To illustrate how this works,examine the
following CONFIG.SYS file:
DEVICE=A:\RBCONFIG.SYS
SHELL=a:\COMMAND.COM /p /e:800
FILES=50
REM !NODE 00006E123456
REM !NODE 00006E123457
REM !NODE 00006E123458
DEVICE=A:\ANSI.SYS
REM !GLOBAL
REM !NODE 00006E123459
device=A:\HIMEM.SYS /m:2
REM !GLOBAL
BUFFERS=32
REM !NODE NONE
device=A:\ramdrive.sys
REM !GLOBAL
LASTDRIVE=Z
FCBS=16,8
REM !END
The result of using this CONFIG.SYS file is:
1> All nodes will execute the following lines:
SHELL=a:\COMMAND.COM /p /e:800
FILES=50
BUFFERS=32
LASTDRIVE=Z
FCBS=16,8
2> Nodes 00006E123456, 00006E123457, and 00006E123458 will execute:
DEVICE=A:\ANSI.SYS
3> Node 00006E123459 will execute:
device=A:\HIMEM.SYS /m:2
4> Any node which is not RPL'ed (i.e., has no NETBIOS running at boot
time) will execute:
device=A:\ramdrive.sys
The following rules apply when parsing the CONFIG.SYS file:
1> The "REM !END" statement must be present and should be the last
line in the CONFIG.SYS file.
2> Lines occuring before DEVICE=RBCONFIG.SYS are global and will be
present for all nodes.
3> Lines occuring after DEVICE=RBCONFIG.SYS, but before the first
"REM !NODE" statement are global and will be present for all nodes.
4> Lines occurring after "REM !GLOBAL", but before the next "REM !NODE"
statement, are global and will be present for all nodes.
5> Any lines not defined by (2) to (4) above is LOCAL, and will only
be included if a "REM !NODE" statement (which matches the adapter
ID number) preceeds the line without an intervening "REM !GLOBAL"
statement.
6> Node IDs in the "REM !NODE" statement must be 12 hex digits with
leading zeroes. The special Node ID "NONE" is used to designate a
node that is not remote booted.
[ End RBCONFIG.DOC ]