Hi, Tim MCCONNEL wrote: > I got the image from: cdimage.debian.org/Debian-cd/current/amd64/iso-cd
Downloading http://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-13.1.0-amd64-netinst.iso yields a downloaded file with 821,035,008 bytes = ~0.8 GB. Thus my first proposal is to just try putting it on your 8 GB stick and to see what happens. But for the sake of science let's assume that you really have problems with an oversized Debian ISO. In this case i would try to repack it while removing a few files, of which i believe that i won't need them. The obvious candidates in the netinst ISO are the firmware files. In larger Debian ISOs there may be some other big .deb files which you may decide not to need. Mount the ISO mkdir /mnt/iso mount debian-13.1.0-amd64-netinst.iso /mnt/iso Look for big firmwware files which your hardware will not need. find /mnt/iso -exec ls -ld '{}' ';' 2>&1 | less yields lines like -r--r--r-- 2 root root 29474828 Apr 24 22:47 /mnt/iso/firmware/firmware-atheros_20250410-2_all.deb ... -r--r--r-- 2 root root 39481748 Apr 24 22:47 /mnt/iso/firmware/firmware-nvidia-graphics_20250410-2_all.deb That's 70 MB. It might be difficult to find another 130 MB of unneeded stuff in the 800 MB of netinst. The firmware files in ISO directory /firmware/ are hardlinked with files in the /pool/non-free-firmware/*/firmware-nonfree/ directories. In case of the above two: -r--r--r-- 2 root root 29474828 Apr 24 22:47 /mnt/iso/pool/non-free-firmware/f/firmware-nonfree/firmware-atheros_20250410-2_all.deb -r--r--r-- 2 root root 39481748 Apr 24 22:47 /mnt/iso/pool/non-free-firmware/f/firmware-nonfree/firmware-nvidia-graphics_20250410-2_all.deb You'd need to remove both file paths of each file in order to get rid of their content in the ISO. After having made the decision which files to remove, you may create the new ISO filsystem according to https://wiki.debian.org/RepackBootableISO#In_xorriso_load_ISO_tree_and_write_modified_new_ISO That would be: umount /mnt/iso xorriso \ -indev debian-13.1.0-amd64-netinst.iso \ -outdev debian-13.1.0-amd64-custom.iso \ -rm /firmware/firmware-atheros_20250410-2_all.deb \ /firmware/firmware-nvidia-graphics_20250410-2_all.deb \ /pool/non-free-firmware/f/firmware-nonfree/firmware-atheros_20250410-2_all.deb \ /pool/non-free-firmware/f/firmware-nonfree/firmware-nvidia-graphics_20250410-2_all.deb \ -- \ -boot_image any replay \ -compliance no_emul_toc \ -padding included This xorriso run is supposed to report ----------------------------------------------------------------------- ... Drive current: -indev 'debian-13.1.0-amd64-netinst.iso' Media current: stdio file, overwriteable Media status : is written , is appendable Boot record : El Torito , MBR isohybrid cyl-align-on GPT APM Media summary: 1 session, 400896 data blocks, 783m data, 340g free Volume id : 'Debian 13.1.0 amd64 n' ... Drive current: -outdev 'debian-13.1.0-amd64-custom.iso' ... Removed from ISO image: file '/firmware/firmware-atheros_20250410-2_all.deb' Removed from ISO image: file '/firmware/firmware-nvidia-graphics_20250410-2_all.deb' Removed from ISO image: file '/pool/non-free-firmware/f/firmware-nonfree/firmware-atheros_20250410-2_all.deb' Removed from ISO image: file '/pool/non-free-firmware/f/firmware-nonfree/firmware-nvidia-graphics_20250410-2_all.deb' xorriso : WARNING : -volid text problematic as automatic mount point name xorriso : WARNING : -volid text does not comply to ISO 9660 / ECMA 119 rules xorriso : NOTE : Replayed 22 boot related commands ... Written to medium : 367104 sectors at LBA 0 Writing to 'debian-13.1.0-amd64-custom.iso' completed successfully. ----------------------------------------------------------------------- So the file debian-13.1.0-amd64-custom.iso is about 33000 sectors of 2048 bytes smaller than the original ISO. (The warning about the -volid text is due to blanks, dot, and lower case letters in the Volume Id text "Debian 13.1.0 amd64 n".) Inspection by x=debian-13.1.0-amd64-netinst.iso xorriso -indev $x -report_el_torito plain -report_system_area plain and x=debian-13.1.0-amd64-custom.iso xorriso -indev $x -report_el_torito plain -report_system_area plain shows the same (quite entangled) boot equipment in both ISOs. The remaining question is, whether the debian-installer tolerates the missing of the two firmware files. One will have to try. I wrote: > > i'm chiming in because your mail address is not subscribed to this > > list (you could do at https://lists.debian.org/debian-cd ) and because > > the two answers so far did not Cc your mail address. Tim MCCONNEL wrote: > Sorry if I broke the rules. No rules were broken. It's just unusual on the Debian lists to Cc the original poster of a mail thread. So i felt the need to justify my Cc to you. Debian mailing lists add a header X-Spam-Status where the word LDOSUBSCRIBER indicates that the sender is subscribed to the list. When i don't see it, i assume that the sender will not receive messages which are sent only to the list. Have a nice day :) Thomas
