Upgrading a NAM using a USB stick
Requirements
- A USB stick prepared with the CMG-NAM, CMG-NAM64 and/or CMG-NAM-mk2 firmware. (This can be bought from or prepared by following these instructions.)
- Command line access to the NAM (either via a serial cable or using ssh over the network).
Procedure
-
Do not connect the USB stick yet.
-
Log in to the NAM as root.
-
Issue the following commands, which will switch off automatic disk access. Ignore any errors or messages:
svc Pt-storage stop svc rdisk stop -
Connect the USB stick.
-
The kernel will automatically assign a name to the USB stick: this will be sd (standing for SCSI disk - an historical legacy) followed by a single, lower-case letter identifying the device. Check the kernel log to see what the device was called with the following command:
dmesgIn the last few lines of output there should be something like:
sd 46:0:0:0: [sdc] 15826944 512-byte logical blocks: (8.10 GB/7.54 GiB) sd 46:0:0:0: [sdc] Write Protect is off sd 46:0:0:0: [sdc] Mode Sense: 43 00 00 00 sd 46:0:0:0: [sdc] Assuming drive cache: write through sd 46:0:0:0: [sdc] Assuming drive cache: write through sdc: sdc1 sd 46:0:0:0: [sdc] Assuming drive cache: write through sd 46:0:0:0: [sdc] Attached SCSI removable diskIn this case, the kernel has called the device sdc. The first partition on the device is identified by the device name followed by 1 identifying the partition number. Replace the token sdc1 in the command below with the partition name that was allocated on your system.
-
Mount the USB stick with the command:
mount -o ro -t ext2 /dev/sdc1 /mntIf this does not work, try the following:
-
Wait 10 seconds and try again, allowing another ten seconds for the kernel to recognise the device and assign it a name.
-
Try again, changing the filesystem type from
ext2
toext3
orext4
If this still fails, the unit may need to be upgraded by some other method: please contact for assistance.
-
-
Run the command:
/mnt/upgrade -
Reboot the NAM.
For more information, first contact your local distributor or email .