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authorbnewbold <bnewbold@robocracy.org>2012-10-15 07:29:48 +0200
committerbnewbold <bnewbold@robocracy.org>2012-10-15 07:29:48 +0200
commit1a89e4892949246d8ec7e58d7027ad6ac002bce2 (patch)
tree8fcbbe86c213db1d0efdf7e3ed35617e5bfe4c3c
parente7546115a2c74d3844ff0559c52274f62d26b65f (diff)
downloadrooter_wiki-1a89e4892949246d8ec7e58d7027ad6ac002bce2.zip
rooter_wiki-1a89e4892949246d8ec7e58d7027ad6ac002bce2.tar.gz
openwrt directions
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+
+### Recompiling Generic OpenWRT Attitude Adjustment from upstream
+
+Note: can skip the patching below if you just use
+http://github.com/bnewbold/openwrt branch "soekris" and copy rooter.config to
+.config.
+
+Note: GRUB2-based builds from trunk don't seem to work, so make sure the
+Attitude Adjustment branch is used and the grub2 build option is not enabled.
+
+The official OpenWRT build documentation contains a set of host-system package
+dependancies (build-essential, etc):
+
+ http://wiki.openwrt.org/doc/howto/buildroot.exigence
+ http://wiki.openwrt.org/doc/howto/build
+
+Git clone:
+
+ git://nbd.name/openwrt.git
+
+In base directory, fetch package feeds:
+
+ ./scripts/feeds update -a
+ # TODO: maybe this is too much?
+ ./scripts/feeds install -a
+ # or,
+ ./scripts/feeds install -d m build-essential
+
+Apply the two following patches (unless they have been unstreamed) (patch -p0 <
+file.patch):
+
+ https://dev.openwrt.org/ticket/10525
+ https://dev.openwrt.org/ticket/12262
+
+"make menuconfig", select x86 and net6501 as target, save config, run "make
+defconfig" to automatically setup target specific stuff (?).
+
+"make kernel_menuconfig CONFIG_TARGET=subtarget" and ensure the following is
+checked:
+
+ Device Drivers --->
+ <*> Serial ATA and Parallel ATA drivers --->
+ [*] AHCI SATA support
+
+ext2 no longer necessary by default... "Use ext4 for ext2/ext3 file systems"?
+
+## rooter-Specific OpenWRT Build Tweaks
+
+In menuconfig:
+
+ global build settings
+ disable binary stripping
+ advanced
+ toolchain options
+ eglibc (not ulibc)
+ gcc 4.7.0 (not gcc 4.6.x with Linaro enhancements)
+ target build settings:
+ root fs archives: tar.gz
+ root filesystem images: ext4
+ 38400 serial port baud rate
+ don't gzip images
+ 16 kernel partition size (MB)
+ 196 root partition size
+ base system
+ bridge
+ libpthread
+ qos-scripts
+ wireless-tools
+ ipv6
+ firewall
+ traceroute6
+ ndisc6
+ 6rd
+ 6scripts
+ ahcpd
+ ipv6calc-mini
+ radvd
+ radvdump
+ luci
+ luci, luci-ssl
+ luci-app-ahcp
+ luci-app-ddns
+ luci-app-diag-devinfo
+ luci-app-qos
+ luci-app-radvd
+ luci-app-statistics
+ kernel
+ kmod-usb-acm
+ kmod-usb-net
+ kmod-usb-storage
+ all intel wireless, as optional modules
+ fs-vfat, fs-msdosfs
+ ralink usb
+ network
+ version control
+ git
+ subversion client
+ file transfer
+ wget
+ bmon
+ ifconfig
+ hostname
+ mtr
+ netstat
+ nisdomainname
+ netcat
+ netperf
+ netstat-nat
+ ngrep
+ utilities
+ vim
+ gzip
+ gnupg
+ e2fsprogs
+ mkdosfs
+ resize2fs
+ tune2fs
+ fdisk
+ cfdisk
+ lsblk
+ hdparam
+ bonniexx
+ development
+ build-essentials
+ libraries
+ libgmp (else gcc compile errors)
+
+TODO: actually get build-essentials compiling
+TODO: mkdosfs download link is dead
+
+if compiling build-essentials, might need:
+
+ bnewbold@ziggy:~/code/openwrt_trunk$ cat /home/bnewbold/code/openwrt_trunk/toolchain/gcc/patches/4.7.0/209-automake-bullshit.patch
+ --- a/config/override.m4
+ +++ b/config/override.m4
+ @@ -29,7 +29,7 @@
+
+ dnl Ensure exactly this Autoconf version is used
+ m4_ifndef([_GCC_AUTOCONF_VERSION],
+ - [m4_define([_GCC_AUTOCONF_VERSION], [2.64])])
+ + [m4_define([_GCC_AUTOCONF_VERSION], [2.68])])
+
+ dnl Test for the exact version when AC_INIT is expanded.
+ dnl This allows to update the tree in steps (for testing)
+
+## Install an OpenWRT image (first time)
+
+Use unetbootin to write a generic linux distro (like debian stable or arch
+linux) to a USB stick. Edit the syslinux.cfg file so it looks like:
+
+ default menu.c32
+ default arch
+ menu title UNetbootin
+ timeout 30
+ serial 0 38400
+ console 0
+ prompt 0
+
+ label arch
+ menu label Arch
+ kernel /ubnkern
+ append vga=normal initrd=/ubninit ../../ -- quiet console=ttyS0,38400 earlyprint=serial,ttyS0,38400
+
+Copy over all the .img files required to the root directory of this device,
+then boot up (connect via serial to select boot device). Wait until you get to
+either a login or a prompt, then copy over the entire image to the device:
+
+ # dd if=openwrt-x86-net6501-combined-squashfs.img of=/dev/sda bs=1M
+
+Reboot with all defaults!
+
+## Misc OpenWRT notes
+
+To allow remote SSH logins on port 22, add the following custom firewall rule:
+
+ iptables -t nat -A prerouting_wan -p tcp --dport 22 -j ACCEPT
+ iptables -A input_wan -p tcp --dport 22 -j ACCEPT
+
+
+To allow all incoming requests to the router, add the following to
+/etc/config/firewall:
+
+config redirect
+ option src wan
+ option proto all
+ option dest_ip 192.168.1.1
+
+To do a sysupgrade, use a full combined .img file, eg scp and run:
+
+ sysupgrade openwrt-x86-net6501-combined-squashfs.img
+
+NOTE: sysupgrade does not seem to work across ulibc/eglibc change?
+
+## LXC Compilation notes
+
+Make sure the following packages are installed (if they weren't from above):
+
+ lsblk
+ perl
+ file
+ vim
+ util > coreutils
+ admin > debootstrap (has requirements)
+ block-mount
+
+Select the "getopt" function in busybox:
+
+ base system > busybox > getopt and support option -l
+
+Put the lxc and attr packages in ./package, then run:
+
+ ./scripts/feeds install libattr
+ ./scripts/feeds install libcap
+ ./scripts/feeds install lxc
+
+Do menuconfig and select these (in Utilities), and also the bash shell.
+
+To compile individual packages, try:
+
+ make package/lxc/compile
+ make package/lxc/install
+ make package/index
+
+NOTE: "cgroup namespace support" is not an option in kernel configuration any
+more, but shows up as a requirement in lxc-checkconfig. LXC works regardless,
+may be some security issues though? See also:
+https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/827798
+
+Ok, once all the above is compiled and loaded up, ready to configure the
+OpenWRT host.
+
+Create /cgroups directory and a mount point like /data.
+
+Edit /etc/conf/fstab:
+
+ config 'mount'
+ option 'target' '/data'
+ option 'device' '/dev/sda3'
+ option 'fstype' 'ext4'
+ option 'options' 'rw,sync'
+ option 'enabled' '1'
+ option 'enabled_fsck' '1'
+ config 'mount'
+ option 'target' '/cgroup'
+ option 'device' 'cgroup'
+ option 'fstype' 'cgroup'
+ option 'options' 'none'
+ option 'enabled' '1'
+ option 'enabled_fsck' '0'
+
+Enable block-mount ("/etc/init.d/fstab enable") and start it
+("/etc/init.d/fstab start").
+
+Copy the devices.tar.gz file to /usr/share/debootstrap/devices.tar.gz.
+
+Next build a debian rootfs. This is rather slow the first time around. Make
+sure /data is mounted, then run the rooter-optimized version of lxc-wheezy:
+
+ mkdir -p /data/wheezy
+ mkdir -p /data/wheezy/mnt
+ ./lxc-wheezy -p /data/wheezy
+
+Edit /data/wheezy/config and add (or edit) two lines:
+
+ lxc.utsname = wheezy
+ lxc.rootfs.mount = /data/wheezy/mnt
+
+Try starting lxc-start:
+
+ lxc-start -n wheezy -f /data/wheezy/config
+
+If you are SSH'd in and get an error about file descriptor fd 7, you may need
+to do:
+
+ lxc-start -n wheezy -f /data/wheezy/config 7<&- 8<&-
+
+Horray!
+
+## TODOs
+
+create a set of rooter-x86-net6501 images with:
+- set local subnet to 192.168.42.1
+- overlay devices.tar.gz (?)
+- default mounted /data and /cgroup (via base-files)
+- lxc wheezy init script, start by default
+
+ttt functionality:
+- *.ttt.rooter.is DNS
+- openvpn tunnel
+- remote ipv4 reverse proxy
+- remote netcat ssh proxy/tunnel
+- some kind of media sharing
+- local hostname DNS
+
+TODO: remove excess kernel modules for faster/cleaner boot
+
+NOTE: dd if=openwrt-x86-net6501-rootfs-squashfs.img of=/dev/sda2 bs=1M
+
+- move ./files content to packages
+- clean up and upstream net6501 directions, notes, patches
+- clean up and upstream libattr and lxc stuff patches
+
+TODO: zgrep, IKCONFIG_PROC
+TODO: mtr broken?