LI-COR LI-6400, Manual

Page: 332 / 846

Downloading Files
Using EW
11-20 Using the LI-6400
11
ew data\ /user -n -m*X??
would send any file that has exactly two characters following an ÒXÓ.
-d
Specifies a disk image, rather than individual files. This switch is very useful
for archiving disks. The format of the ew command changes slightly:
ew
<filename> <lpl disk>
-d [switches]
<filename> is now the name of the DOS file to be used for the binary image
(the destination, if switches include -r, or else the source file - that is, a previ-
ously downloaded disk image).
<lpldisk> is the name of the LI-6400Õs disk
to used. For example
ew user.bin /user -d -r -b115200
will capture the entire (used portion) image of /user, and store it in user.bin.
To put user.bin back into the LI-6400, type
ew user.bin /user -d -b115200
Some things to note when using the -d switch:
¥ Disk names are part of the image
Consider the following example: 1) You download
/User
, and store it in us-
er.bin. 2) You rename /user to /junk . 3) You then send user.bin to /Junk by
ew user.bin /junk -d
What will the LI-6400Õs diskÕs be named? /Sys and /User , just like before. If,
on the other hand, you did this
ew user.bin /sys -d
In addition to overwriting the original
/Sys
disk, youÕd end up with two disks
named /User !
¥ -u, -n, -y, and -g are overridden
When using -d, those switches are ignored if they appear.
¥
Defragment first?
When capturing the disk image, you are getting everything, whether it is valid
or not. (An invalid part might be a file that has been deleted, or old directory
information). Defragmenting can reduce the size of the binary image, and the
time it takes to transfer it.