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+Intro
+=====
+
+This document is designed to provide a list of the minimum levels of
+software necessary to run the 3.0 kernels.
+
+This document is originally based on my "Changes" file for 2.0.x kernels
+and therefore owes credit to the same people as that file (Jared Mauch,
+Axel Boldt, Alessandro Sigala, and countless other users all over the
+'net).
+
+Current Minimal Requirements
+============================
+
+Upgrade to at *least* these software revisions before thinking you've
+encountered a bug!  If you're unsure what version you're currently
+running, the suggested command should tell you.
+
+Again, keep in mind that this list assumes you are already functionally
+running a Linux kernel.  Also, not all tools are necessary on all
+systems; obviously, if you don't have any ISDN hardware, for example,
+you probably needn't concern yourself with isdn4k-utils.
+
+o  GNU C                  3.2                     # gcc --version
+o  GNU make               3.80                    # make --version
+o  binutils               2.12                    # ld -v
+o  util-linux             2.10o                   # fdformat --version
+o  module-init-tools      0.9.10                  # depmod -V
+o  e2fsprogs              1.41.4                  # e2fsck -V
+o  jfsutils               1.1.3                   # fsck.jfs -V
+o  reiserfsprogs          3.6.3                   # reiserfsck -V
+o  xfsprogs               2.6.0                   # xfs_db -V
+o  squashfs-tools         4.0                     # mksquashfs -version
+o  btrfs-progs            0.18                    # btrfsck
+o  pcmciautils            004                     # pccardctl -V
+o  quota-tools            3.09                    # quota -V
+o  PPP                    2.4.0                   # pppd --version
+o  isdn4k-utils           3.1pre1                 # isdnctrl 2>&1|grep version
+o  nfs-utils              1.0.5                   # showmount --version
+o  procps                 3.2.0                   # ps --version
+o  oprofile               0.9                     # oprofiled --version
+o  udev                   081                     # udevd --version
+o  grub                   0.93                    # grub --version || grub-install --version
+o  mcelog                 0.6                     # mcelog --version
+o  iptables               1.4.2                   # iptables -V
+o  openssl & libcrypto    1.0.0                   # openssl version
+o  bc                     1.06.95                 # bc --version
+
+
+Kernel compilation
+==================
+
+GCC
+---
+
+The gcc version requirements may vary depending on the type of CPU in your
+computer.
+
+Make
+----
+
+You will need GNU make 3.80 or later to build the kernel.
+
+Binutils
+--------
+
+Linux on IA-32 has recently switched from using as86 to using gas for
+assembling the 16-bit boot code, removing the need for as86 to compile
+your kernel.  This change does, however, mean that you need a recent
+release of binutils.
+
+Perl
+----
+
+You will need perl 5 and the following modules: Getopt::Long, Getopt::Std,
+File::Basename, and File::Find to build the kernel.
+
+BC
+--
+
+You will need bc to build kernels 3.10 and higher
+
+
+OpenSSL
+-------
+
+Module signing and external certificate handling use the OpenSSL program and
+crypto library to do key creation and signature generation.
+
+You will need openssl to build kernels 3.7 and higher if module signing is
+enabled.  You will also need openssl development packages to build kernels 4.3
+and higher.
+
+
+System utilities
+================
+
+Architectural changes
+---------------------
+
+DevFS has been obsoleted in favour of udev
+(http://www.kernel.org/pub/linux/utils/kernel/hotplug/)
+
+32-bit UID support is now in place.  Have fun!
+
+Linux documentation for functions is transitioning to inline
+documentation via specially-formatted comments near their
+definitions in the source.  These comments can be combined with the
+SGML templates in the Documentation/DocBook directory to make DocBook
+files, which can then be converted by DocBook stylesheets to PostScript,
+HTML, PDF files, and several other formats.  In order to convert from
+DocBook format to a format of your choice, you'll need to install Jade as
+well as the desired DocBook stylesheets.
+
+Util-linux
+----------
+
+New versions of util-linux provide *fdisk support for larger disks,
+support new options to mount, recognize more supported partition
+types, have a fdformat which works with 2.4 kernels, and similar goodies.
+You'll probably want to upgrade.
+
+Ksymoops
+--------
+
+If the unthinkable happens and your kernel oopses, you may need the
+ksymoops tool to decode it, but in most cases you don't.
+It is generally preferred to build the kernel with CONFIG_KALLSYMS so
+that it produces readable dumps that can be used as-is (this also
+produces better output than ksymoops).  If for some reason your kernel
+is not build with CONFIG_KALLSYMS and you have no way to rebuild and
+reproduce the Oops with that option, then you can still decode that Oops
+with ksymoops.
+
+Module-Init-Tools
+-----------------
+
+A new module loader is now in the kernel that requires module-init-tools
+to use.  It is backward compatible with the 2.4.x series kernels.
+
+Mkinitrd
+--------
+
+These changes to the /lib/modules file tree layout also require that
+mkinitrd be upgraded.
+
+E2fsprogs
+---------
+
+The latest version of e2fsprogs fixes several bugs in fsck and
+debugfs.  Obviously, it's a good idea to upgrade.
+
+JFSutils
+--------
+
+The jfsutils package contains the utilities for the file system.
+The following utilities are available:
+o fsck.jfs - initiate replay of the transaction log, and check
+  and repair a JFS formatted partition.
+o mkfs.jfs - create a JFS formatted partition.
+o other file system utilities are also available in this package.
+
+Reiserfsprogs
+-------------
+
+The reiserfsprogs package should be used for reiserfs-3.6.x
+(Linux kernels 2.4.x). It is a combined package and contains working
+versions of mkreiserfs, resize_reiserfs, debugreiserfs and
+reiserfsck. These utils work on both i386 and alpha platforms.
+
+Xfsprogs
+--------
+
+The latest version of xfsprogs contains mkfs.xfs, xfs_db, and the
+xfs_repair utilities, among others, for the XFS filesystem.  It is
+architecture independent and any version from 2.0.0 onward should
+work correctly with this version of the XFS kernel code (2.6.0 or
+later is recommended, due to some significant improvements).
+
+PCMCIAutils
+-----------
+
+PCMCIAutils replaces pcmcia-cs. It properly sets up
+PCMCIA sockets at system startup and loads the appropriate modules
+for 16-bit PCMCIA devices if the kernel is modularized and the hotplug
+subsystem is used.
+
+Quota-tools
+-----------
+
+Support for 32 bit uid's and gid's is required if you want to use
+the newer version 2 quota format.  Quota-tools version 3.07 and
+newer has this support.  Use the recommended version or newer
+from the table above.
+
+Intel IA32 microcode
+--------------------
+
+A driver has been added to allow updating of Intel IA32 microcode,
+accessible as a normal (misc) character device.  If you are not using
+udev you may need to:
+
+mkdir /dev/cpu
+mknod /dev/cpu/microcode c 10 184
+chmod 0644 /dev/cpu/microcode
+
+as root before you can use this.  You'll probably also want to
+get the user-space microcode_ctl utility to use with this.
+
+udev
+----
+udev is a userspace application for populating /dev dynamically with
+only entries for devices actually present.  udev replaces the basic
+functionality of devfs, while allowing persistent device naming for
+devices.
+
+FUSE
+----
+
+Needs libfuse 2.4.0 or later.  Absolute minimum is 2.3.0 but mount
+options 'direct_io' and 'kernel_cache' won't work.
+
+Networking
+==========
+
+General changes
+---------------
+
+If you have advanced network configuration needs, you should probably
+consider using the network tools from ip-route2.
+
+Packet Filter / NAT
+-------------------
+The packet filtering and NAT code uses the same tools like the previous 2.4.x
+kernel series (iptables).  It still includes backwards-compatibility modules
+for 2.2.x-style ipchains and 2.0.x-style ipfwadm.
+
+PPP
+---
+
+The PPP driver has been restructured to support multilink and to
+enable it to operate over diverse media layers.  If you use PPP,
+upgrade pppd to at least 2.4.0.
+
+If you are not using udev, you must have the device file /dev/ppp
+which can be made by:
+
+mknod /dev/ppp c 108 0
+
+as root.
+
+Isdn4k-utils
+------------
+
+Due to changes in the length of the phone number field, isdn4k-utils
+needs to be recompiled or (preferably) upgraded.
+
+NFS-utils
+---------
+
+In ancient (2.4 and earlier) kernels, the nfs server needed to know
+about any client that expected to be able to access files via NFS.  This
+information would be given to the kernel by "mountd" when the client
+mounted the filesystem, or by "exportfs" at system startup.  exportfs
+would take information about active clients from /var/lib/nfs/rmtab.
+
+This approach is quite fragile as it depends on rmtab being correct
+which is not always easy, particularly when trying to implement
+fail-over.  Even when the system is working well, rmtab suffers from
+getting lots of old entries that never get removed.
+
+With modern kernels we have the option of having the kernel tell mountd
+when it gets a request from an unknown host, and mountd can give
+appropriate export information to the kernel.  This removes the
+dependency on rmtab and means that the kernel only needs to know about
+currently active clients.
+
+To enable this new functionality, you need to:
+
+  mount -t nfsd nfsd /proc/fs/nfsd
+
+before running exportfs or mountd.  It is recommended that all NFS
+services be protected from the internet-at-large by a firewall where
+that is possible.
+
+mcelog
+------
+
+On x86 kernels the mcelog utility is needed to process and log machine check
+events when CONFIG_X86_MCE is enabled. Machine check events are errors reported
+by the CPU. Processing them is strongly encouraged.
+
+Getting updated software
+========================
+
+Kernel compilation
+******************
+
+gcc
+---
+o  <ftp://ftp.gnu.org/gnu/gcc/>
+
+Make
+----
+o  <ftp://ftp.gnu.org/gnu/make/>
+
+Binutils
+--------
+o  <ftp://ftp.kernel.org/pub/linux/devel/binutils/>
+
+OpenSSL
+-------
+o  <https://www.openssl.org/>
+
+System utilities
+****************
+
+Util-linux
+----------
+o  <ftp://ftp.kernel.org/pub/linux/utils/util-linux/>
+
+Ksymoops
+--------
+o  <ftp://ftp.kernel.org/pub/linux/utils/kernel/ksymoops/v2.4/>
+
+Module-Init-Tools
+-----------------
+o  <ftp://ftp.kernel.org/pub/linux/kernel/people/rusty/modules/>
+
+Mkinitrd
+--------
+o  <https://code.launchpad.net/initrd-tools/main>
+
+E2fsprogs
+---------
+o  <http://prdownloads.sourceforge.net/e2fsprogs/e2fsprogs-1.29.tar.gz>
+
+JFSutils
+--------
+o  <http://jfs.sourceforge.net/>
+
+Reiserfsprogs
+-------------
+o  <http://www.kernel.org/pub/linux/utils/fs/reiserfs/>
+
+Xfsprogs
+--------
+o  <ftp://oss.sgi.com/projects/xfs/>
+
+Pcmciautils
+-----------
+o  <ftp://ftp.kernel.org/pub/linux/utils/kernel/pcmcia/>
+
+Quota-tools
+----------
+o  <http://sourceforge.net/projects/linuxquota/>
+
+DocBook Stylesheets
+-------------------
+o  <http://sourceforge.net/projects/docbook/files/docbook-dsssl/>
+
+XMLTO XSLT Frontend
+-------------------
+o  <http://cyberelk.net/tim/xmlto/>
+
+Intel P6 microcode
+------------------
+o  <https://downloadcenter.intel.com/>
+
+udev
+----
+o <http://www.freedesktop.org/software/systemd/man/udev.html>
+
+FUSE
+----
+o <http://sourceforge.net/projects/fuse>
+
+mcelog
+------
+o <http://www.mcelog.org/>
+
+Networking
+**********
+
+PPP
+---
+o  <ftp://ftp.samba.org/pub/ppp/>
+
+Isdn4k-utils
+------------
+o  <ftp://ftp.isdn4linux.de/pub/isdn4linux/utils/>
+
+NFS-utils
+---------
+o  <http://sourceforge.net/project/showfiles.php?group_id=14>
+
+Iptables
+--------
+o  <http://www.iptables.org/downloads.html>
+
+Ip-route2
+---------
+o  <https://www.kernel.org/pub/linux/utils/net/iproute2/>
+
+OProfile
+--------
+o  <http://oprofile.sf.net/download/>
+
+NFS-Utils
+---------
+o  <http://nfs.sourceforge.net/>