[docs] do not tell users to delete /usr/bin/python3

2026-09-21T01:52:58Z

Section 3.2.1 of the QEMU (Ubuntu) quick start instructs the reader to run "sudo rm -rf /usr/bin/python3" and re-create the symlink by hand. On Debian and Ubuntu, apt and much of the system tooling are Python programs resolved through that path, so following the guide leaves the machine unable to install packages at all - including the packages needed to undo it. The hardcoded 3.9 version in the example also goes stale with every release. Replace it with python-is-python3, which is what provides the python command on these distributions, and add a warning against the manual approach. Drop the now unreferenced screenshot.

doxygen: create framework to unify markdown and source code part (#9946)

2025-01-26T03:44:39Z

* doxygen: adjust documentation directory structure - Rename documentation/doxygen to documentation/0.doxygen and cleanup some unused files. - Add/rename folders for each sub sections, such as 1.introduction/...... Each sub section will be created as a subpage. - Generate initial Doxyfile, this Doxyfile will be used to unify doxygen generated API documents and those markdown files under documentation folder. This patch just add the default Doxyfile generated by running "doxygen -g". It is used as baseline to add more features/configurations. - Rename documentation/README.md to documentation/INDEX.md, and use it as mainpage. - Move 0.doxygen/readme.md to documentation/README.md. * doxygen: update configurations These configurations are from old documentation/doxygen/Doxyfile. Try best to compatible exixting design. * doxygen: add run script Add a script to automatic some operations. Updated the README.md. --------- Signed-off-by: Chen Wang Co-authored-by: Supper Thomas <78900636@qq.com>

rt-thread.git/documentation/2.quick-start/quick_start_qemu/figures, branch master

[docs] do not tell users to delete /usr/bin/python3

doxygen: create framework to unify markdown and source code part (#9946)