Source: installation-guide Version: 20220129~deb11u1 Severity: normal Tags: d-i patch
Dear Maintainer, Some of the documentation related to limits in Linux kernel boot parameters in the installation guide is outdated. For example, the section describing[1] use of boot parameters for preseeding references the 2.6.9 kernel in a callout note. Please find attached a patch to update two such documentation sections. Thanks, James [1] - https://www.debian.org/releases/bullseye/amd64/apbs02.en.html#preseed-bootparms
>From 55dbd6dae622cfb40e3397bc98e4e053b14ad45c Mon Sep 17 00:00:00 2001 From: James Addison <j...@jp-hosting.net> Date: Tue, 21 Feb 2023 18:07:01 +0000 Subject: [PATCH] linux-kernel: update notes related to command-line limits --- en/appendix/preseed.xml | 9 +++++---- en/boot-installer/parameters.xml | 9 +++++---- 2 files changed, 10 insertions(+), 8 deletions(-) diff --git a/en/appendix/preseed.xml b/en/appendix/preseed.xml index 0a4582149..1ed69b83b 100644 --- a/en/appendix/preseed.xml +++ b/en/appendix/preseed.xml @@ -367,10 +367,11 @@ out any options (like preconfiguration options) that it recognizes. </para> <note arch="linux-any"><para> -Current linux kernels (2.6.9 and later) accept a maximum of 32 command line -options and 32 environment options, including any options added by default -for the installer. If these numbers are exceeded, the kernel will panic -(crash). (For earlier kernels, these numbers were lower.) +Debian-built Linux kernels accept up to the default maximum of 32 command line +options and 32 environment options. If these numbers are exceeded, the kernel +will fail to boot. Additionally, there is an architecture-dependent limit to +the number of characters for the entire kernel command line; command-lines +longer than this limit are silently truncated. </para></note> <para> diff --git a/en/boot-installer/parameters.xml b/en/boot-installer/parameters.xml index 91d981406..18f87dc25 100644 --- a/en/boot-installer/parameters.xml +++ b/en/boot-installer/parameters.xml @@ -75,10 +75,11 @@ The installation system recognizes a few additional boot parameters<footnote> <para> -With current kernels (2.6.9 or newer) you can use 32 command line options and -32 environment options. If these numbers are exceeded, the kernel will panic. -Also there is a limit of 255 characters for the whole kernel command line, -everything above this limit may be silently truncated. +Debian-built Linux kernels accept up to the default maximum of 32 command line +options and 32 environment options. If these numbers are exceeded, the kernel +will fail to boot. Additionally, there is an architecture-dependent limit to +the number of characters for the entire kernel command line; command-lines +longer than this limit are silently truncated. </para> -- 2.39.1
