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20 S/390 PID: ThinkPad Enabled for S/390
# vi /usr/flexes/.bash_profile
USERNAME=”flexes”
PATH=$PATH:/usr/flexes/bin <=== add this line
export USERNAME BASH_ENV PATH
Adding /usr/flexes/bin (where all the FLEX-ES executables are located) to PATH makes
operation easier.
Installing the FLEX-ES license key
You need a FLEX-ES license key, which is a Linux file of a few hundred bytes. Your IBM
business partner should obtain this for you. The business partner will need to obtain a USB
dongle along with the license key. The dongle is a small hardware device that plugs into the
ThinkPad USB port and contains an encrypted serial number that is reflected in the license
key.
Copy the license key file to /var/adm/flexes/.flexeslicense, as noted in the instructions above.
(Note that the target file name begins with a period.) If the license key is provided on diskette
you will need to copy it from there. For example:
(shut down Linux)
(remove the CD-ROM drive from the Ultrabay of the ThinkPad)
(insert the diskette drive in the Ultrabay)
(boot Linux and log in as root)
# mdir a:
(if the diskette is in DOS format, you should see the file with your key)
# mcopy a:your.key /var/adm/flexes/.flexeslicense
(done)
(if the diskette is not in DOS format, try the following)
# mount /dev/fd0 /mnt/floppy
# ls -al /mnt/floppy
(if the key file is displayed, copy it with the following command)
# cp /mnt/floppy/yourlicensekeyname.key /var/adm/flexes/.flexeslicense
ThinkPad models are updated and changed frequently. The exact method of changing from
CD-ROM use to diskette use depends on your ThinkPad model. In some models, you can
have both a CD-ROM drive and a diskette drive active at the same time. In this case, there is
no need to shutdown the Linux to swap drives.
If you have multiple FLEX-ES licenses, be certain to identify the correct license with the
correct dongle.
3.1.3 X3270
A version of x3270 (a TN3270 client) is distributed with FLEX-ES. A different version of x3270
is distributed with Red Hat Linux 7.1. You should use the version distributed with FLEX-ES,
even though it may be older than the version distributed with Linux. Since we placed the
FLEX-ES libraries after the Linux libraries in our PATH environment, the system will find the
Linux x3270 first. You can correct this in a number of ways. We did this:
# cd /usr/bin/X11
# mv x3270 x3270xxx (rename it to something obscure)
After doing this, the FLEX-ES distribution of x3270 will be found using our PATH. (You could
accomplish the same thing by placing /usr/flexes/bin first in the PATH, or you could simply
delete the X11 version of x3270.)