Installation manual

Chapter 5 Upgrades and Troubleshooting 40
Cyclades-TS Installation Manual
CHAPTER 5 UPGRADES AND TROUBLESHOOTING
Upgrades
All 6 files added by Cyclades to the standard Linux files are in the /proc/flash directory. They are:
boot_ori - original boot code
boot_alt - alternate boot code
syslog - event logs (not used by Linux)
config - configuration parameters, only the boot parameters are used by the boot code
zImage - Linux kernel image
script - file where all Cyclades-TS configuration information is stored
To upgrade the Linux kernel provided in the Cyclades-TS, ftp the new zImage file on top of the zImage file in
the /proc/flash directory. Then, reboot, and the new Linux kernel will take over. This can be confirmed by
typing
cat /proc/version
to see the Linux kernel version.
Troubleshooting
If the Cyclades-TS booted properly, the interfaces can be verified using ifconfig and ping. If ping does not
work, check the routing table using the command route. Of course, all this should be tried after checking that
the cables are connected correctly.
As mentioned in Chapter 4, the file /etc/config_files contains a list of files acted upon by saveconf and
restoreconf. If a file is missing, it will not be loaded onto the ramdisk on boot. The following table lists files
that should be included in the /etc/config_files file and which programs use each.