opsi manual opsi version 4.0.2 - opsi Download - uib

opsi manual opsi version 4.0.2
9 Netboot products
9.1 Parameteters for the opsi linux boot image
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The opsi linux boot image has some parameters which may be used to change the behaviour of the boot image. You
will try this if the opsi linux boot images do not run properly with the standard parameters on your hardware (e.g.
black screen).
You may change these standard parameters by the opsi-configed choosing the Tab Hostparameter and use there the
entry opsi-linux-bootimage.append.
Typical values are here (may be combined):
• acpi=off
• noapic
• irqpoll
• reboot=bios
A other important default is the password of the user root at the opsi linux boot image. This password is linux123
by default and you should change this for security reasons.
To do this change the opsi-linux-bootimage.append entry at the server-configuration.
The option you have to change is pwh (password hash). As value to this option you have to give a new password hash,
which will be loaded to the /etc/shadow at boot time.
The best way to get the correct password hash is to login via ssh to your bootimage:
ssh root@
The old password is linux123.
Now set a new password for root:
passwd
Get the new hash
grep root /etc/shadow
The output should look like this:
root:$6$344YXKIT$D4RPZfHMmv8e1/i5nNkOFaRN2oYNobCEjCHnkehiEFA7NdkDW9KF496OHBmyHHq0kD2FBLHZoTdr5YoDlIoWz\
/:14803:0:99999:7:::
Now copy from after the first colon until to the second colon and use this as value for pwh.
So the option for opsi-linux-bootimage.append may be:
pwh=$6$344YXKIT$D4RPZfHMmv8e1/i5nNkOFaRN2oYNobCEjCHnkehiEFA7NdkDW9KF496OHBmyHHq0kD2FBLHZoTdr5YoDlIoWz/
9.2 Unattended automated OS installation
9.2.1 Overview
Steps of a re-installation:
• Using PXE-Boot: