Dell OpenManage Deployment Toolkit Version 4.3 User's Guide

Using Custom Scripts

Obtain the ISO image of the embedded Linux at support.dell.com.
Extract the contents of the ISO image to a folder (for example, isoimage) on your hard drive.
Copy the custom scripts into the same folder.
- NOTE: Your scripts must also take care of copying miscellaneous items to unlock the media, so that the media can be mounted and ejected as per the operating system’s installation process.
In /mnt/cdrom/isolinux/isolinux.cfg (for BIOS mode) or in /mnt/cdrom/EFI/BOOT/dtk_grub.cfg (for UEFI mode), edit the cd install section to point to your customized start-up script. In other words, add the share_script option and then use mkisofs to create the ISO image as follows:
```
mkisofs -o output.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table  -pad
                                    -r -J -hide-joliet-trans-tbl -eltorito-alt-boot -e efiboot.img -no-emul-boot isoimage
                                 
```
- NOTE: It is important to use mkisofs to make your customized image because the ISO Linux recognizes only the isolinux.cfg (and all files within /isolinux). If you do not use mkisofs, the HAPI libraries of the DTK cannot load and most of the Dell Update Packages do not work.
- NOTE: The scripts that you copy into the media are copied to the RAM disk and run from the RAM disk. This task is done to make sure that the media is not locked. Ensure that your sample scripts have valid path names.
Burn the ISO contents to a media.
Your ISO image is ready for booting.

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Dell OpenManage Deployment Toolkit Version 4.3 User's Guide

Using Custom Scripts

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