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| -rw-r--r-- | Documentation/virt/uml/user_mode_linux.rst | 62 |
1 files changed, 9 insertions, 53 deletions
diff --git a/Documentation/virt/uml/user_mode_linux.rst b/Documentation/virt/uml/user_mode_linux.rst index 6085d2c0f8a8..e0632d80753e 100644 --- a/Documentation/virt/uml/user_mode_linux.rst +++ b/Documentation/virt/uml/user_mode_linux.rst @@ -5,7 +5,7 @@ User Mode Linux HOWTO ===================== :Author: User Mode Linux Core Team -:Last-updated: Mon Nov 18 14:16:16 EST 2002 +:Last-updated: Sat Jan 25 16:07:55 CET 2020 This document describes the use and abuse of Jeff Dike's User Mode Linux: a port of the Linux kernel as a normal Intel Linux process. @@ -223,23 +223,15 @@ Linux: a port of the Linux kernel as a normal Intel Linux process. Compiling the user mode kernel is just like compiling any other - kernel. Let's go through the steps, using 2.4.0-prerelease (current - as of this writing) as an example: - - - 1. Download the latest UML patch from - the download page <http://user-mode-linux.sourceforge.net/ - - In this example, the file is uml-patch-2.4.0-prerelease.bz2. + kernel. - 2. Download the matching kernel from your favourite kernel mirror, + 1. Download the latest kernel from your favourite kernel mirror, such as: - ftp://ftp.ca.kernel.org/pub/kernel/v2.4/linux-2.4.0-prerelease.tar.bz2 - + https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/linux-5.4.14.tar.xz - 3. Make a directory and unpack the kernel into it:: + 2. Make a directory and unpack the kernel into it:: host% mkdir ~/uml @@ -248,21 +240,10 @@ Linux: a port of the Linux kernel as a normal Intel Linux process. cd ~/uml host% - tar -xzvf linux-2.4.0-prerelease.tar.bz2 - - - - 4. Apply the patch using:: - - host% - cd ~/uml/linux - - host% - bzcat uml-patch-2.4.0-prerelease.bz2 | patch -p1 + tar xvf linux-5.4.14.tar.xz - - 5. Run your favorite config; ``make xconfig ARCH=um`` is the most + 3. Run your favorite config; ``make xconfig ARCH=um`` is the most convenient. ``make config ARCH=um`` and ``make menuconfig ARCH=um`` will work as well. The defaults will give you a useful kernel. If you want to change something, go ahead, it probably won't hurt @@ -276,34 +257,9 @@ Linux: a port of the Linux kernel as a normal Intel Linux process. - 6. Finish with ``make linux ARCH=um``: the result is a file called + 4. Finish with ``make linux ARCH=um``: the result is a file called ``linux`` in the top directory of your source tree. - Make sure that you don't build this kernel in /usr/src/linux. On some - distributions, /usr/include/asm is a link into this pool. The user- - mode build changes the other end of that link, and things that include - <asm/anything.h> stop compiling. - - The sources are also available from cvs at the project's cvs page, - which has directions on getting the sources. You can also browse the - CVS pool from there. - - If you get the CVS sources, you will have to check them out into an - empty directory. You will then have to copy each file into the - corresponding directory in the appropriate kernel pool. - - If you don't have the latest kernel pool, you can get the - corresponding user-mode sources with:: - - - host% cvs co -r v_2_3_x linux - - - - - where 'x' is the version in your pool. Note that you will not get the - bug fixes and enhancements that have gone into subsequent releases. - 2.2. Compiling and installing kernel modules --------------------------------------------- @@ -416,7 +372,7 @@ Linux: a port of the Linux kernel as a normal Intel Linux process. 3.1. Running UML ----------------- - It runs on 2.2.15 or later, and all 2.4 kernels. + It runs on 2.2.15 or later, and all kernel versions since 2.4. Booting UML is straightforward. Simply run 'linux': it will try to |