Hi Aldo,
The error message - missing disk based software is pointing me to tiehr corrupt software image or bad hd on the unit.
It seems like the module is booting thru flash image and your disk based software is either not installed / disk has gone bad.
Please follow these steps to install image on NME module.
To reinstall the system software on an NME-WAE network module installed in a Cisco access router, follow these steps:
Step 1 
Log in to the Cisco router in which the NME-WAE module is installed, and reload the NME-WAE module:
router-2851> enable
router-2851# service-module integrated-Service-Engine 1/0 reload
Step 2 Immediately open a session on the module:
router-2851# service-module integrated-Service-Engine 1/0 session
Step 3 While the module is reloading, you will see the following option during boot phase 3. Enter *** as instructed:
[BOOT-PHASE3]: enter `***' for rescue image: ***
Step 4 The rescue image dialog appears. The following example demonstrates how to interact with the rescue dialog (user input is denoted by entries in bold typeface):
This is the rescue image. The purpose of this software is to let
you install a new system image onto your system's boot flash
device. This software has been invoked either manually
(if you entered `***' to the bootloader prompt) or has been
invoked by the bootloader if it discovered that your system image
in flash had been corrupted.
To download an image from network, this software will request
the following information from you:
- which network interface to use
- IP address and netmask for the selected interface
- default gateway IP address
- FTP server IP address
- username and password on FTP server
- path to system image on server
Please enter an interface from the following list:
0: GigabitEthernet 1/0
1: GigabitEthernet 2/0
enter choice: 0
Using interface GigabitEthernet 1/0
Please enter the local IP address to use for this interface:
[Enter IP Address]: 10.1.13.2
Please enter the netmask for this interface:
[Enter Netmask]: 255.255.255.240
Please enter the IP address for the default gateway:
[Enter Gateway IP Address]: 10.1.13.1
Please enter the IP address for the FTP server where you wish
to obtain the new system image:
[Enter Server IP Address]: 10.107.193.240
Please enter your username on the FTP server (or 'anonymous'):
[Enter Username on server (e.g. anonymous)]: username
Please enter the password for username 'username' on FTP server:
Please enter the directory containing the image file on the FTP server:
[Enter Directory on server (e.g. /)]: /
Please enter the file name of the system image file on the FTP server:
[Enter Filename on server]: WAAS-4.2.1.10-K9.sysimg
Here is the configuration you have entered:
Current config:
IP Address: 10.1.13.2
Netmask: 255.255.255.240
Gateway Address: 10.1.13.1
Server Address: 10.107.193.240
Username: username
Password: *********
Image directory: /
Image filename: WAAS-4.2.1.10-K9.sysimg
Attempting download...
Downloaded 15821824 byte image file
A new system image has been downloaded.
You should write it to flash at this time.
Please enter 'yes' below to indicate that this is what you want to do:
[Enter confirmation ('yes' or 'no')]: yes
Ok, writing new image to flash
.................................................................................. done.
Finished writing image to flash.
Enter 'reboot' to reboot, or 'again' to download and install a new image:
[Enter reboot confirmation ('reboot' or 'again')]: reboot
Restarting system.
Step 5 After the module reboots, install the .bin image from an HTTP server:
NM-WAE-1# copy http install 10.77.156.3 /waas WAAS-4.2.1.10-k9.bin
Step 6 Reload the module:
NM-WAE-1# reload
After the module reboots, it is running the WAAS 4.1.x software.
If you still see the issue and NME module still shows up the disk based software message, please send me the show alarms output along with sh disk details.
Regards.
PS: If this resolves your issue, please mark this as Answered.
