From Earlham Cluster Department
Configuring RedBoot for NFS booting
- If using minicom as your terminal emulator, make sure both hardware and software flow controls are disabled...
- Boot the TS board normally, and then in /etc/sysconfig, edit these two files:
- file "ifcfg-eth0" to:
DEVICE=eth0 IPADDR=192.168.0.50 NETMASK=255.255.255.0 NETWORK=192.168.0.0 BROADCAST=192.168.0.255 BOOTPROTO=static #BOOTPROTO=dhcp ENABLE=yes
- and file "network_cfg" to:
### Technologic Systems General Network Configuration File ### NETWORKING=yes GATEWAY=192.168.0.1 GW_DEV=eth0 HOSTNAME="desired name" BOOTPROTO=dhcp DEFRAG_IPV4=no FORWARD_IPV4=no
Then Do the following:
1. Boot the board and press Ctrl+C
- NB: if this doesn't work, check minicom and make sure that both hardware and software flow control are off
2. This should drop you into the RedBoot command line
3. "ifconfig -l" should display the current configurations, eg
RedBoot> fconfig -l Run script at boot: true Boot script: .. fis load vmlinux .. exec -c "console=ttyAM0,115200 root=/dev/mtdblock1"
Boot script timeout (100ms resolution): 1 Use BOOTP for network configuration: false Gateway IP address: 192.168.0.11 Local IP address: 192.168.0.50 Local IP address mask: 255.255.255.0 Default server IP address: 192.168.0.11 Network hardware address [MAC]: 0x0F:0x0F:0x0F:0x0F:0x0F:0x0F GDB connection port: 9000 Force console for special debug messages: false Network debug at boot time: false
- I would strongly suggest that you write/save the default configurations somewhere.
4. "ifconfig" allows you to edit the bootscript that RedBoot executes at boot time.
5. Leave the first line as it is, by hitting return.
>> fis load vmlinux
6. Edit the next line to:
>> exec -c "console=ttyAM0,115200 ip=dhcp nfsroot=[HOST IP]:[root path on host]"
e.g. Booting pmp3 from stewie
>> exec -c "console=ttyAM0,115200 ip=dhcp nfsroot=126.96.36.199:/home/hip/nfs-boot/tslinux-pmp3"
7. Terminate script with a blank line:
8. At this point, RedBoot will prompt for some values interactively, I would suggest you increase the "Boot script timeout" to some larger value like 10 (1s), this will give you more time to interrupt RedBoot using the Ctrl+C command.
9. Leave all other values as they are, unless if you really want to change them.
10. The final prompt will ask you to save the changes you made by entering y/n.
11. Reboot the board, it should now mount root from the host and path specified in RedBoot.
RedBoot> reset ... Resetting.
12. If you experience boot errors, check your host configurations and NFS server configurations.