User's Manual

Doc #: 1ANSU-160004
DNI SGDC-D22 User Manual
i. 33
9. Linux Kernel Upgrade & Backup
Upgrade:
Use FTP or SCP to put your kernel image into the device directory /var and execute the following command on the
device to upgrade the kernel image.
# flashcp –v /var/<imagename> /dev/mtd3
Figure 22, Upgrade Linux kernel image.
When it is done, please reboot your device to apply the kernel image you upgraded.
Backup:
Execute the following command to backup the current kernel image on the device to the /var directory.
# dd if=/dev/mtd3 of=/var/kernel.img