How to customize a Debian ISO using a preseed file with or without Cubic.
Hello.
I'm on Ubuntu 22.04 and I'm trying to extract all the files from a (bootable) Debian ISO,add some new files and then re-generate a bootable ISO image. I'm trying to accomplish this task using Cubic and without a graphical interface,but only giving the most appropriate commands on the terminal. Below you can see what I tried to do and the commands that I've issued. In both cases,for some unknown reasons,the preseed.cfg file that I have added does not stick. Can someone help me to understand why ? thanks.
1) Using Cubic. I've copied and pasted this preseed.cfg file :
- d-i debian-installer/add-kernel-opts string intel_iommu=on
- d-i mirror/http/hostname string http.us.debian.org
- d-i mirror/http/directory string /debian
- d-i passwd/root-password password marietto
- d-i passwd/user-fullname string marietto User
- d-i passwd/username string marietto
- d-i passwd/user-password password a
- d-i passwd/user-password-again password a
- d-i user-setup/allow-password-weak boolean true
inside the folder : /home/ziomario/Scrivania/PassT-Cubic/Debian-new/custom-disk/preseed/
and then I've checked if it has been recognized and yes,it has been,according with this picture :
I suspect that I should do something else,according to what I read on Cubic : "reference these files in the disk boot configurations by prefixing them with /cdrom" : what does it mean ? I don't understand what I should do. So,at the end,when I have generated the ISO image,the debian installer asks me every question as usual,ignoring the question that I want to skip,according to the preseed file.
2) manually,issuing the following commands on the terminal,like these ones :
- chmod +w -R /home/ziomario/Scrivania/PassT-Cubic/ISO/debian-live-11.5.0-amd64-xfce/d-i/
- (I don't have a folder called install.386 or even install amd)gunzip debian-live-11.5.0-amd64-xfce/d-i/initrd.gz
- echo preseed.cfg | cpio -H newc -o -A -F debian-live-11.5.0-amd64-xfce/d-i/initrd
- gzip debian-live-11.5.0-amd64-xfce/d-i/initrd
- chmod -w -R debian-live-11.5.0-amd64-xfce/d-i/
- cd debian-live-11.5.0-amd64-xfce/
at this point,since I don't have any md5sum.txt inside the ISO image of the debian live,I have generated this file using this command :
- find -type f -exec md5sum "{}" + > md5sum.txt
- find -follow -type f ! -name md5sum.txt -print0 | xargs -0 md5sum > md5sum.txt
- chmod -w md5sum.txt
- at this point I ran this script to generate the ISO image :
- script.sh
- orig_iso=debian-live-11.5.0-amd64-xfce.iso
- new_files=debian-live-11.5.0-amd64-xfce
- new_iso=debian-live-11.5.0-amd64-mod-xfce.iso
- mbr_template=isohdpfx.bin
- # Extract MBR template file to disk
- dd if="$orig_iso" bs=1 count=432 of="$mbr_template"
- xorriso -as mkisofs \
- -r -J --joliet-long \
- -V 'd-live 11.5.0 xf amd64' \
- -o "$new_iso" \
- -isohybrid-mbr "$mbr_template" \
- -partition_offset 16 \
- -c isolinux/boot.cat \
- -b isolinux/isolinux.bin \
- -no-emul-boot -boot-load-size 4 -boot-info-table \
- -eltorito-alt-boot \
- -e boot/grub/efi.img \
- -no-emul-boot -isohybrid-gpt-basdat -isohybrid-apm-hfsplus \
- "$new_files"
The ISO image has been generated and it is able to boot,the preseed file is in the right place
I've looked inside the initrd file and I saw that it is there,you can see by yourself
and then I've tried to install Debian,but again,the preseed.cfg file is ignored.
Comments
-
Have you also asked Debian? https://www.debian.org/support
0
Categories
- All Categories
- 243 LFX Mentorship
- 243 LFX Mentorship: Linux Kernel
- 815 Linux Foundation IT Professional Programs
- 366 Cloud Engineer IT Professional Program
- 165 Advanced Cloud Engineer IT Professional Program
- 83 DevOps Engineer IT Professional Program
- 131 Cloud Native Developer IT Professional Program
- 142 Express Training Courses & Microlearning
- 119 Express Courses - Discussion Forum
- Microlearning - Discussion Forum
- 6.6K Training Courses
- 40 LFC110 Class Forum - Discontinued
- 72 LFC131 Class Forum
- 49 LFD102 Class Forum
- 234 LFD103 Class Forum
- 21 LFD110 Class Forum
- 31 LFD121 Class Forum
- LFD123 Class Forum
- LFD125 Class Forum
- 16 LFD133 Class Forum
- 6 LFD134 Class Forum
- 17 LFD137 Class Forum
- 70 LFD201 Class Forum
- 3 LFD210 Class Forum
- 2 LFD210-CN Class Forum
- 2 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum - Discontinued
- 2 LFD233 Class Forum
- 2 LFD237 Class Forum
- 24 LFD254 Class Forum
- 719 LFD259 Class Forum
- 109 LFD272 Class Forum
- 4 LFD272-JP クラス フォーラム
- 10 LFD273 Class Forum
- 234 LFS101 Class Forum
- 1 LFS111 Class Forum
- 2 LFS112 Class Forum
- 1 LFS116 Class Forum
- 3 LFS118 Class Forum
- LFS120 Class Forum
- 2 LFS142 Class Forum
- 2 LFS144 Class Forum
- 3 LFS145 Class Forum
- 1 LFS146 Class Forum
- 15 LFS148 Class Forum
- 15 LFS151 Class Forum
- 1 LFS157 Class Forum
- 63 LFS158 Class Forum
- LFS158-JP クラス フォーラム
- 4 LFS162 Class Forum
- 1 LFS166 Class Forum
- 5 LFS167 Class Forum
- 1 LFS170 Class Forum
- 2 LFS171 Class Forum
- 2 LFS178 Class Forum
- 2 LFS180 Class Forum
- 1 LFS182 Class Forum
- 5 LFS183 Class Forum
- 30 LFS200 Class Forum
- 737 LFS201 Class Forum - Discontinued
- 2 LFS201-JP クラス フォーラム
- 17 LFS203 Class Forum
- 135 LFS207 Class Forum
- 1 LFS207-DE-Klassenforum
- LFS207-JP クラス フォーラム
- 302 LFS211 Class Forum
- 55 LFS216 Class Forum
- 53 LFS241 Class Forum
- 50 LFS242 Class Forum
- 37 LFS243 Class Forum
- 13 LFS244 Class Forum
- 1 LFS245 Class Forum
- LFS246 Class Forum
- LFS248 Class Forum
- 81 LFS250 Class Forum
- 2 LFS250-JP クラス フォーラム
- LFS251 Class Forum
- 143 LFS253 Class Forum
- LFS254 Class Forum
- LFS255 Class Forum
- 6 LFS256 Class Forum
- LFS257 Class Forum
- 1.2K LFS258 Class Forum
- 9 LFS258-JP クラス フォーラム
- 135 LFS260 Class Forum
- 151 LFS261 Class Forum
- 41 LFS262 Class Forum
- 82 LFS263 Class Forum - Discontinued
- 15 LFS264 Class Forum - Discontinued
- 11 LFS266 Class Forum - Discontinued
- 22 LFS267 Class Forum
- 25 LFS268 Class Forum
- 29 LFS269 Class Forum
- 7 LFS270 Class Forum
- 199 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- 2 LFS147 Class Forum
- LFS274 Class Forum
- 3 LFS281 Class Forum
- 2 LFW111 Class Forum
- 257 LFW211 Class Forum
- 176 LFW212 Class Forum
- 12 SKF100 Class Forum
- SKF200 Class Forum
- 2 SKF201 Class Forum
- 789 Hardware
- 199 Drivers
- 68 I/O Devices
- 37 Monitors
- 98 Multimedia
- 174 Networking
- 91 Printers & Scanners
- 83 Storage
- 753 Linux Distributions
- 82 Debian
- 67 Fedora
- 17 Linux Mint
- 13 Mageia
- 23 openSUSE
- 147 Red Hat Enterprise
- 31 Slackware
- 13 SUSE Enterprise
- 350 Ubuntu
- 464 Linux System Administration
- 39 Cloud Computing
- 70 Command Line/Scripting
- Github systems admin projects
- 91 Linux Security
- 78 Network Management
- 101 System Management
- 47 Web Management
- 69 Mobile Computing
- 17 Android
- 28 Development
- 1.2K New to Linux
- 1K Getting Started with Linux
- 379 Off Topic
- 113 Introductions
- 177 Small Talk
- 26 Study Material
- 521 Programming and Development
- 291 Kernel Development
- 212 Software Development
- 1.1K Software
- 263 Applications
- 180 Command Line
- 3 Compiling/Installing
- 988 Games
- 311 Installation
- 79 All In Program
- 79 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)