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
- 112 LFX Mentorship
- 112 LFX Mentorship: Linux Kernel
- 604 Linux Foundation IT Professional Programs
- 315 Cloud Engineer IT Professional Program
- 139 Advanced Cloud Engineer IT Professional Program
- 52 DevOps Engineer IT Professional Program
- 67 Cloud Native Developer IT Professional Program
- 4 Express Training Courses
- 4 Express Courses - Discussion Forum
- 5.3K Training Courses
- 17 LFC110 Class Forum - Discontinued
- 8 LFC131 Class Forum
- 30 LFD102 Class Forum
- 178 LFD103 Class Forum
- LFD110 Class Forum
- 24 LFD121 Class Forum
- LFD133 Class Forum
- 2 LFD137 Class Forum
- 62 LFD201 Class Forum
- 2 LFD210 Class Forum
- 1 LFD210-CN Class Forum
- 1 LFD213 Class Forum - Discontinued
- 127 LFD232 Class Forum - Discontinued
- LFD233 Class Forum
- LFD237 Class Forum
- 22 LFD254 Class Forum
- 643 LFD259 Class Forum
- 107 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 4 LFD273 Class Forum
- 1 LFS101 Class Forum
- LFS112 Class Forum
- LFS116 Class Forum
- LFS118 Class Forum
- LFS142 Class Forum
- LFS144 Class Forum
- 2 LFS145 Class Forum
- LFS146 Class Forum
- LFS151 Class Forum
- LFS157 Class Forum
- LFS158 Class Forum
- LFS162 Class Forum
- LFS166 Class Forum
- LFS167 Class Forum
- LFS170 Class Forum
- LFS171 Class Forum
- LFS178 Class Forum
- LFS180 Class Forum
- LFS182 Class Forum
- LFS183 Class Forum
- 28 LFS200 Class Forum
- 735 LFS201 Class Forum - Discontinued
- 1 LFS201-JP クラス フォーラム
- 13 LFS203 Class Forum
- 98 LFS207 Class Forum
- 299 LFS211 Class Forum
- 54 LFS216 Class Forum
- 47 LFS241 Class Forum
- 41 LFS242 Class Forum
- 36 LFS243 Class Forum
- 12 LFS244 Class Forum
- LFS245 Class Forum
- 41 LFS250 Class Forum
- 1 LFS250-JP クラス フォーラム
- LFS251 Class Forum
- 141 LFS253 Class Forum
- LFS254 Class Forum
- LFS255 Class Forum
- 2 LFS256 Class Forum
- LFS257 Class Forum
- 1.2K LFS258 Class Forum
- 9 LFS258-JP クラス フォーラム
- 109 LFS260 Class Forum
- 144 LFS261 Class Forum
- 39 LFS262 Class Forum
- 82 LFS263 Class Forum - Discontinued
- 15 LFS264 Class Forum - Discontinued
- 11 LFS266 Class Forum - Discontinued
- 20 LFS267 Class Forum
- 18 LFS268 Class Forum
- 26 LFS269 Class Forum
- 198 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- LFS274 Class Forum
- 3 LFS281 Class Forum
- LFW111 Class Forum
- 254 LFW211 Class Forum
- 173 LFW212 Class Forum
- 9 SKF100 Class Forum
- SKF200 Class Forum
- 781 Hardware
- 198 Drivers
- 68 I/O Devices
- 37 Monitors
- 95 Multimedia
- 174 Networking
- 87 Printers & Scanners
- 83 Storage
- 742 Linux Distributions
- 80 Debian
- 66 Fedora
- 15 Linux Mint
- 13 Mageia
- 23 openSUSE
- 143 Red Hat Enterprise
- 31 Slackware
- 13 SUSE Enterprise
- 347 Ubuntu
- 450 Linux System Administration
- 31 Cloud Computing
- 69 Command Line/Scripting
- Github systems admin projects
- 89 Linux Security
- 76 Network Management
- 101 System Management
- 46 Web Management
- 51 Mobile Computing
- 18 Android
- 23 Development
- 1.2K New to Linux
- 1K Getting Started with Linux
- 355 Off Topic
- 109 Introductions
- 167 Small Talk
- 18 Study Material
- 504 Programming and Development
- 283 Kernel Development
- 203 Software Development
- 844 Software
- 210 Applications
- 180 Command Line
- 3 Compiling/Installing
- 107 Games
- 308 Installation
- 51 All In Program
- 51 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)