I want to have an installer with custom boot parameters. This is so as not to have to enter them manually each time, for I want to use the installer for multiple installs.

  • Isn't preseeding what you want? Please explain why the various methods described in the installation manual aren't suitable for you. – Ferenc Wágner Feb 7 '17 at 7:52
  • I was actually not aware you could do this via preseeding – Tshepang Feb 7 '17 at 9:20
  • @FerencWágner upon taking a closer look, the option I found with preseeding applies to the installed system, not the installer. – Tshepang Feb 7 '17 at 9:51
  • Right, and I'm still unsure what you want. Passing arguments to the installer kernel is only possible by adjusting your boot method, about which we don't know a thing. For everything else, preseeding should work. – Ferenc Wágner Feb 7 '17 at 12:06
  • Rephrasing: I want to change the default kernel boot parameters when you boot into the installer. By default I mean whatever is used when you hit enter on the boot prompt. – Tshepang Feb 7 '17 at 13:07

Assuming a CD/DVD installer, you have to remaster the installer image with modified kernel parameters in its boot loader configuration. For BIOS (not UEFI) boot on a stretch installer ISO the default boot option is described in isolinux/gtk.cfg. Change the append line to your liking, then build a new ISO as described at https://wiki.debian.org/DebianInstaller/Modify/CD.

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