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Creating network interface alias for network boot or jumpstart installation at OBP

By admin

Question : How to create a network interface alias at OBP for jumpstart installation or network boot.

Solution :
Sometimes when we want to do a jumpstart installation or a network boot the default network interface which is selected is not connected to the network. The command ‘boot net – install’ fails to run in this case. The workaround is to create a new alias for the network interface which we know has network connectivity.

Example :
1. Halt the system to the OBP (ok) prompt, e.g.:

# init 0

2. Display network device trees:

ok> show-nets

This will show the available ethernet devices available with their device paths (see step# 3); write down the one you want to use, just to double check later.

3. Select network device to create an alias:

ok> show-nets
a. /iommu@0,100000000/sbus@0,1000010000/bedma@5,84000010/be@5,8c0000
b. NO SELECTION
Enter Selection, q to quit: a             --- (we select "a" in this example)
/iommu@0,100000000/sbus@0,1000010000/bedma@5,84000010/be@5,8c0000 has been selected.
Type ^Y ( Control-Y ) to insert it in the command line.
e.g. ok nvalias mydev ^Y
for creating devalias mydev for
/iommu@0,100000000/sbus@0,1000010000/bedma@5,84000010/be@5,8c0000

4. Create the alias:

ok> nvalias net1 ^Y

here,
“net1” is the alias you specify.
^Y is Control-Y (CTRL+Y) to paste the physical path of the network interface we copied in step #3.

5. Now start the network install or network boot :

ok> boot net – install

Filed Under: Solaris

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