DPU-OS Tailoring Guide ​

This document explains how to use imageTailor to trim the DPU-OS installation image using configuration files from the dpu-utilities repository. Follow these steps:

Prepare imageTailor and Required RPM Packages ​

Install the imageTailor tool by referring to the imageTailor User Guide and prepare the necessary RPM packages for tailoring.

You can use the openEuler installation image as the RPM source. While openEuler-22.03-LTS-everything-debug-aarch64-dvd.iso contains a complete set of RPMs, it is large. Alternatively, use the RPMs from openEuler-22.03-LTS-aarch64-dvd.iso along with the install-scripts.noarch package.

Obtain the install-scripts.noarch package from the everything repository or download it using yum:

yum install -y --downloadonly --downloaddir=./ install-scripts

Copy DPUOS Configuration Files ​

The imageTailor tool is installed in /opt/imageTailor by default. Copy the DPU-OS configuration files to the appropriate paths, selecting the correct architecture directory. The DPU-OS tailoring configuration repository supports x86_64 and aarch64 architectures.

cp -rf custom/cfg_dpuos /opt/imageTailor/custom
cp -rf kiwi/minios/cfg_dpuos /opt/imageTailor/kiwi/minios/cfg_dpuos

Modify Other Configuration Files ​

• Add a line for dpuos configuration in kiwi/eulerkiwi/product.conf:

dpuos           PANGEA        EMBEDDED   DISK     GRUB2        install_mode=install install_media=CD install_repo=CD selinux=0

• Add a line for dpuos configuration in kiwi/eulerkiwi/minios.conf:

dpuos      kiwi/minios/cfg_dpuos yes

• Add a line for dpuos configuration in repos/RepositoryRule.conf:

dpuos          1           rpm-dir     euler_base

Set Passwords ​

Navigate to /opt/imageTailor and update the passwords in the following files:

• custom/cfg_dpuos/usr_file/etc/default/grub

• custom/cfg_dpuos/rpm.conf

• kiwi/minios/cfg_dpuos/rpm.conf

For password generation and modification, refer to the openEuler imageTailor manual section on Configuring Initial Passwords.

Execute the Tailoring Command ​

Run the following command to perform the tailoring. The resulting ISO will be saved in /opt/imageTailor/result:

cd /opt/imageTailor
./mkdliso -p dpuos -c custom/cfg_dpuos --sec --minios force