3Com e-PC c10/s10, User Manual, Page: 86 / 122

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After this message is issued, MBA in the PC defaults to its normal operation and
attempts to contact any available file server for its boot image. When a file server is
finally reached, MBA attempts to open the filename specified for its PC in
BOOTCONF.SYS; if this fails, MBA attempts to open the default boot image file,
NET$DOS.SYS.
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In addition to the NetWare-specific tools mentioned in this chapter, the MBA Utility Disk or
MBA subdirectory on the EtherCD includes other tools that help simplify installation and use
of MBA. These tools are outlined in this section.
C C H H K K I I D D : : C C o o n n d d i i t t i i o o n n a a l l E E x x e e c c u u t t i i o o n n B B a a s s e e d d o o n n N N o o d d e e A A d d d d r r e e s s s s
The CHKID utility is useful when sharing a boot image file among several PCs. Depending on
their node addresses, one or more PCs can load or bypass commands in CONFIG.SYS or
AUTOEXEC.BAT.
Using CHKID within CONFIG.SYS
CHKID compares node addresses on the command line with the node address of the local PC.
If the local address matches the address on the command line, the next line in the
CONFIG.SYS file is executed. If the address does not match, the next line is not executed.
Copy the file CHKID.EXE from the MBA Utility Disk or MBA subdirectory on the EtherCD into
the boot image file(s) which require it.
The command syntax for CHKID is:
Usage: device=chkid.exe [v] [x] id
options:
v - verbose mode
x - reverse address checking condition
There are two optional parameters; “v” and “x”. The “v” (verbose) parameter displays
messages on the status of CHKID while it is executing. This is used only during testing of a
system using CHKID.
The “x” parameter reverses the condition of the address checking. Normally the next line of
the CONFIG.SYS is executed only if the addresses match; if you include the “x”, the next
CONFIG.SYS line is NOT executed for the address(es) matched.
Examples:
If a PC's node address is 0123456789AB and CONFIG.SYS included:
device=chkid.exe 0123456789AB
device=himem.sys
HIMEM.SYS is loaded only on the PC with address 0123456789AB.
By adding the “x” parameter, as follows:
device=chkid.exe x 0123456789AB
device=himem.sys
HIMEM.SYS is
not
loaded on the PC with node address 0123456789AB, but is loaded at all
other addresses.