Reference8:Configuration/LINUX/General

The fundamental operating modes of the LINUX are configured on this page. The Linux OS can be startet on selected platforms as a secondary operating system that runs application specific tasks. Linux and the innovaphone OS coexist on the device and share the resources like memory and cpu time.

 Note: LINUX is only as Beta for experimental use at V8 available

Supported platforms

Linux is currently supported as a beta on the IP6000.

IP6000 little endian

Common linux distributions run in little endian, the IP6000 CPU usually runs in big endian. To support little endian linux a little endian IP6000 firmware is available. To install this firmware the LDAP directory and the VARS need to be changed to little endian format. The procedure to install the little endian IP6000 firmware version is:

• Backup configuration
• Install latest bootcode that allows to boot littleendian IP6000 firmware.
• Install latest IP6000 firmware that supports migration to littleendian
• clear the flash memory with http://addr/!mod+cmd+FLASHMAN0+reset+all+erase
• Upload the little endian firmware to DRAM ( ip6000-le.bin )
• Now the little endian code is running...
• Upload ip6000-le.bin to flash.
• Restore configuration

The Ip6000-le version has some restrictions: Bootcode update is not possible, Certificate key invalidation is not supported.

To install the big endian over the little endian version it is also needed to clear the flash, upload the bif endian version to DRAM, and then flash the big endian version.

Memory partitioning

The innovaphone OS can reserve memory for Linux. This is done with the commands

http://addr/!config+flags+L...

http://addr/!config+write

http://addr/!reset

Configuration

Activate Linux-Support

Reservation of main-memory and switch on the linux-menu:

!config flags L
!config write

Restart is needed.

ETH2 - virtual network connction for Linux

• DHCP: Mode Server
• IP: IP Address z.B. 172.16.14.253
• IP: IP Network Mask z.B 255.255.255.252
• IP: Proxy ARP enable, also for outgoing Network interface ETH0 or ETH1
• DHCP-Server: First Address & Last Address z.B. 172.16.14.254
• DHCP-Server: Network Mask 255.255.0.0
• DHCP-Server: Default Gateway 172.16.0.1

Start Linux

For starting Linux a Kernel Binary mus be uploaded or be provided via the CF card. Via the Kernel command line you tell the Kernel where the Root file system is. This can be uploaded or be available via the CF card. Will be used as temporary RAM-Disk, or as whole partition on the CF Card

Linux with Root-File-system starting ina a RAM-Disk

• Linux kernel file: e.g. ip6000-linux-2.6.28.2-BE.bin
• Linux initrd file: e.g. ip6000-rootfs-BE.ext2.gz
• Kernel command line: root=/dev/ram0
• Ramdisk size in kBytes: 11040

Linux with Root-File-system on the CF-Card

• Linux kernel file: e.g. ip6000-linux-2.6.28.2-BE.bin
• Linux initrd file:
• Kernel command line: root=/dev/sda2
• Ramdisk size in kBytes:

Copy Linux to the CF_Card

The root system shows a file system on the CF card. Linux will be started with the root file system in the RAM disk. With Telnet you can connect to the Linux system:

telnet 172.16.14.253

Loginname: default No password.

Mounting of the CF-Card and copy the data:

su (no password)
mount /dev/sda /mnt
cp /mnt/ip6000-linux-2.6.28.2-BE.ext2.gz /tmp/ip6000-linux-2.6.28.2-BE.ext2.gz
umount /dev/sda

Build a partition on the CF-Card:

fdisk /dev/sda

The first primary partition can be a WIN95 (LBA), the second a LINUX-partition. A Swap-partition will be initialized searched on the fourth position.

Format partition, mounting and copy the Root-System:

mkfs.ext2 /dev/sda2
gunzip /tmp/ip6000-linux-2.6.28.2-BE.ext2.gz
mkdir /tmp/root
mount /tmp/ip6000-linux-2.6.28.2-BE.ext2 /tmp/root -o loop
mount /dev/sda2 /mnt
cp -r /tmp/root /mnt
umount /tmp/ip6000-linux-2.6.28.2-BE.ext2
umount /dev/sda2