annotate www/index.html @ 384:53d50555c1ae

Fix thinko. (I run a mirror of my website on my laptop's loopback address, which works even when I'm not online. But you don't.)
author Rob Landley <rob@landley.net>
date Sun, 10 Aug 2008 22:08:09 -0500
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children 3eeb77934265
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478178b9337b SSI #include needs file=
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1 <!--#include file="header.html" -->
71
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2 <b><h1>News</h1></b>
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3
379
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4 <h2>August 6, 2008</h2>
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5 <p><a href=downloads/firmware-0.9.0.tar.bz2>Version 0.9.0</a> is out
384
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6 (<a href=http://landley.net/hg/firmware/shortlog/378>changeset 378</a>)
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7 and can rebuild itself under itself. (The packaging step still requires User
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8 Mode Linux to create ext2 images, which only works on x86 and x86-64 hosts.
383
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9 The next release should replace that with something more portable.)
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10 The root filesystem is now based on BusyBox 1.11.1 (plus a few bug fixes).</p>
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11
383
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12 <p>The prebuilt binary images have been moved into their own
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13 <a href=downloads/binaries>binaries</a> directory.
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14 The prebuilt binary <a href=downloads/binaries/cross-compiler>cross
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15 compilers</a> are statically linked against uClibc for better portability.
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16 Updated the <a href=downloads/README>README</a> to better describe the
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17 contents of the <a href=downloads/binaries/system-image>system-image
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18 tarballs</a>.</p>
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19
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20 <p>The forkbomb.sh script can now take a number of parallel targets to
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21 launch, for example "./forkbomb.sh --fork 3". (The resulting display is kind
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22 of horrible but the out-$ARCH.txt files are still legible.) Leaving off the
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23 number still builds all targets in parallel, with the original display.</p>
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24
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25 <p>The include.sh script was reorganized so that interesting environment
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26 variables the user might want to export for themselves are set near the top
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27 of the script. Currently this includes:</p>
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28
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29 <ul>
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30 <li><p><b>BUILD_SHORT</b> - Makes the mini-native.sh stage skip building
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31 development tools. The resulting mini-native root filesystem contains uClibc
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32 and busybox, but nothing else. (Export "BUILD_SHORT=headers" to put back the
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33 toolchain headers for use by another compiler, such as tinycc.)</p>
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34
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35 <li><p><b>BUILD_STATIC</b> - Tell cross-compiler.sh to create static
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36 binaries, for a more portable cross compiler toolchain. (If you want them
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37 linked against uClibc, build a mini-native for your host, chroot into it, and
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38 then rebuild under that.)</li>
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39
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40 <li><p><b>PREFERRED_MIRROR</b> - Tell download.sh to fetch packages from a
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41 non-default location (falling back to the standard mirror list if it can't get
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42 one from there).</p></li>
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43
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44 <li><p><b>RECORD_COMMANDS</b> - Record a list of all command lines used during
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45 each build stage log files named "cmdlines.$STAGE.$PACKAGE" under the build
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46 directory. Each file can be turned into a list of the command names used via
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47 "awk '{print $1}' build/cmdlines* | sort -u". The script
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48 sources/toys/report_recorded_commands.sh gives a report of all commands
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49 used by each package after a call to "RECORD_COMMANDS=1 ./forkbomb.sh".
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50 (This is an easy way to find out exactly what environmental dependencies a
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51 package needs to build, or at least what it uses out of $PATH).</p></li>
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52 </ul>
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53
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54 <p>Updated documentation is in progress...</p>
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55
347
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56 <h2>June 6, 2008</h2>
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57 <p><a href=downloads/firmware-0.4.0.tar.bz2>Version 0.4.0</a> is out
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58 (<a href=http://landley.net/hg/firmware/shortlog/345>changeset 345</a>),
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59 with kernel 2.6.25.4 and the "distcc trick" working out of the box.</p>
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60
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61 <p>The distcc trick accelerates a native build by calling out to the
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62 cross compiler. To use it, download the appropriate cross-compiler-$ARCH and
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63 system-image-$ARCH tarballs, run the "run-with-distcc.sh" from the system image
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64 directory with the path to the cross compiler directory as its first argument.
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65 (You need to have distcc installed on the host system.)</p>
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66
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67 <p>After building from source, the cross-compiler and system-image directories
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68 remain in the build directory. The "emulator-build.sh" runs these with
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69 distcc acceration set up. The script "smoketest.sh" is a wrapper
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70 around emulator-build.sh which feeds a script into qemu's stdin to compile
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71 and run a multi-threaded "hello world" under the emulator, using distcc and
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72 the cross compiler.</p>
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73
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74 <p>If smoketest.sh works for a platform, it means a lot of stuff worked to get
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75 that far. The cross compiler worked to build the system, and the emulated
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76 system booted so QEMU, the uClibc config, and the kernel config agreed.
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77 The emulated system has a working virtual hard drive and serial port, and for
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78 distcc to work it has a working virtual network connection. Running "make"
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79 would also require a working realtime clock.</p>
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80
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81 <p>The seven commands missing in order to run the FWL build under itself
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82 are bzip2, sort, diff, wget, install, od, and find. (The busybox versions,
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83 where available, had a bug, and they're not in toybox yet.) I'm trying to
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84 get those in for the next release in September.</p>
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85
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86 <p>Sorry I missed a release back in April. Shouldn't happen again.</p>
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87
305
9076557fcf53 Last months release was in 2008, not 2007. (Spotted by Omair Eshkenazi).
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88 <h2>January 29, 2008</h2>
279
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89 <p><a href=downloads/firmware-0.3.1.tar.bz2>Version 0.3.1</a> is out
347
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90 (<a href=http://landley.net/hg/firmware/shortlog/275>changeset 275</a>), with
279
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91 kernel 2.6.24. The <a href=downloads/images>images</a>
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92 are now tarballs each containing the ext2, zImage, and run script files.
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93 The run scripts now run qemu-setup.sh by default so /proc, /sys, /dev
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94 and the virtual network are initialized, and the default shell is busybox
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95 ash (so cursor keys and history work).</p>
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96
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97 <p>Sparc is still broken (tracked it down to a dynamic linking bug, I think,
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98 haven't fixed it yet) and m68k is failing to build with an internal compiler
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99 error (next release I should upgrade the compiler). All the other targets
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100 have a working virtual network, and all but powerpc exit qemu when you
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101 exit the PID 1 command shell.</p>
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102
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103 <p>Building on an x86-64 host< should no longer be insanely slow (the
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104 gcc-min-heapsize arguments that allow 32-bit hosts to build in
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105 128 megs of ram do very impolite things to 64-bit hosts), and the resulting
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106 x86-64 cross compiler should now be properly relocatable.</p>
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107
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108 <p>Better build dependency tracking: the host-tools script is now
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109 populating a single directory with all the commands needed by the build, and
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110 restricting $PATH to that directory (so it can't accidentally call any
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111 commands that aren't explicitly listed). It's building toybox and busybox to
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112 provide most of these commands (the remaining ones are listed towards the end
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113 of include.sh), and creating symlinks to the remaining ones out
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114 of the original $PATH. This allows it to build on a wider range of host
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115 distributions.</p>
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116
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117 <h2>November 2, 2007</h2>
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118 <p><a href=downloads/firmware-0.3.0.tar.bz2>Version 0.3.0</a> is out
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119 (changeset 242), with kernel 2.6.23. PowerPC finally works under
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120 qemu (network and everything), and it's building a m68k target
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121 (although I have no emulator to run that). That means there are
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122 ten targets, of which eight run under qemu. (Sparc is still
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123 broken, let me know if anybody actually cares.)</p>
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124
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125 <p>The new "./forkbomb.sh --fork" script builds all the targets in
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126 parallel, or use --nofork if you haven't got the memory for that
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127 (and --watch to watch and existing build if you ctrl-c out of
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128 the display before it's done).</p>
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129
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130 <p>The build is now smarter about extracting only one copy of the
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131 source code (in build/sources) and re-using it for multiple builds,
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132 building out of tree (via cp -rs to create a tree full of symlinks
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133 so the package doesn't need native out-of-tree support).</p>
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134
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135 <h2>September 2, 2007</h2>
208
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136 <p>Added <a href=new_platform.html>a porting guide</a>. I'm working on
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137 m68k, ppc, big endian arm, and maybe blackfin targets for the next release,
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138 and thought other people might be interested in the process. (The vast
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139 majority of it is fiddly debugging. These are the other steps.)</p>
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140
192
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141 <h2>June 27, 2007</h2>
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142 <p><a href=downloads/firmware-0.2.2.tar.bz2>Version 0.2.2</a> is out
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143 (changeset 185). Using uClibc 0.9.29 release, several small bugfixes,
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144 new mips big-endian config, actually work when /bin/sh->dash (mostly
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145 by explicitly saying /bin/bash everywhere), automatically detect
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146 the number of CPUs in the machine to feed -j to make, and better
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147 diagnostic output.</p>
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148
158
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149 <h2>April 9, 2007</h2>
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150 <p><a href=downloads/firmware-0.2.1.tar.bz2>Version 0.2.1</a> is out
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151 (changeset 156). Significant upgrades to armv4l: the native compiler works
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152 now, and it's using soft-float. Added armv5l and i586 targets to show how
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153 to do that kind of variant. Added preliminary powerpc support (although
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154 qemu can't run it yet). Reorganized the download directory and rewrote
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155 the <a href=downloads/README>README</a>. Added squashfs back (the kernel
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156 supports it, but it's not using it yet). Moved uClibc to miniconfig.
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157 (Yes, the patch for this is huge, and yes I need to push it all upstream into
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158 the Linux kernel. On the bright side, this one builds on a host that doesn't
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159 have curses installed.) Stopped trying to build qemu (at least until they
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160 get the gcc 3.x dependencies cleaned out), now just warn if it's not there
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161 (so far the build only uses it to sanity-test the cross compiler, which is
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162 now skipped automatically if it's not there).</p>
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163
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164 <p>I note that some versions of Ubuntu (Edgy and up) are pushing a political
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165 agenda. They install bash, but point /bin/sh to dash instead. (So why
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166 install bash if you're not going to use it?) This breaks all sorts of things,
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167 and if somebody can tell me how to force make to run "/bin/bash" instead of
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168 "/bin/sh", I'll consider trying to deal with the mess. Until then, I suggest
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169 "rm /bin/sh; ln -s bash /bin/sh" to get a working system. (I'm no fan of
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170 bash, but dash is just broken.)</p>
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171
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172 <p>(Those of you who use vi and want to be able to use the cursor keys while
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173 in insert mode might want to do something similar with vi->vim. Ubuntu seems
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174 to be trying to train users to change their habits. Dog biscuits would be a
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175 more honest approach.)</p>
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176
161
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177 <p>Update: I've been pointed at
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178 <a href=https://wiki.ubuntu.com/DashAsBinSh>this</a> as evidence Ubuntu isn't
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179 pushing a political agenda. Ok, maybe it's just really bad technical judgement.
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180 Are they honestly saying that people write shell scripts for the speed? And
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181 how do you make a size argument and then install bash by default in ADDITION
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182 to the other shell? Boggle. In 1991 after Linus Torvalds taught his term
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183 program to understand the minix filesystem so he could upload and download
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184 without rebooting, he taught it to handle the system calls of bash so he could
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185 rm/mv/mkdir without rebooting. That's where Linux 0.0.1
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186 came from. Bash was the default Linux shell _before_ 0.0.1. Be very
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187 careful messing with that kind of a de-facto standard, guys. Dash is
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188 garbage. Background a process with &amp; and then hit ctrl-c: it'll kill it.
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189 It doesn't understand blah/{blah,blah} file list syntax. It can't do
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190 "source file.sh" (just ". file.sh", which is unreadable). I repeat: I'm not a
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191 fan of bash (yeah, the bloat's getting crazy), but dash is broken.</p>
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192
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193 <p>And that still doesn't explain why "vi" can't use the cursor keys in
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194 insert mode, but "vim" can...</p>
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195
127
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196 <h2>March 6, 2007</h2>
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197 <p>Version 0.2.0 is out. This one builds ext2 images which can boot up to a
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198 shell prompt under qemu. This works on i686, armv4l, x86_64, and mipsel.
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199 (Sparc's broken. Anyone who cares about sparc is welcome to debug it.)</p>
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200
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201 <p>There are now prebuilt ext2 image files in the download directory.
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202 The kernels are in the mini-native tarballs. (Yeah, I should repackage that
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203 next release.) The system emulator invocation for each platform is
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204 the appropriate sources/configs file, and run-mini-native.sh invokes 'em.</p>
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205
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206 <p>The mailing list is in the usual place if you have any questions.</p>
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207
90
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208 <h2>January 14, 2007</h2>
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209 <p>There's a new irc channel for the project, #firmware on freenode.</p>
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210
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211 <p><a href=http://landley.net/hg/firmware?cl=88>Changeset 88</a> builds
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212 i686, x86_64, armv4l, mips, and sparc. I've made a release tarball of
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213 that (<a href=downloads/firmware-0.1.1.tar.bz2>firmware 0.1.1</a>, "It works
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214 for me"), and updated the prebuilt cross-compiler tarballs in the
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215 <a href=downloads>downloads</a> directory. I've added a big README and
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216 prebuilt mini-native tarballs for each platform (although packing them up into
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217 something qemu can boot is currently left as an exercise for the reader).</p>
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218
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219 <p>Speaking of which, I'm currently working on adding ext2 packaging
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220 (via <a href=http://landley.net/code/toybox>toybox</a>) to the build scripts,
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221 so qemu system emulation can boot the result and then run the next stage
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222 automatically.</p>
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223
71
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224 <h2>December 28, 2006</h2>
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225 <p><a href=http://landley.net/hg/firmware?cl=68>Changeset 68</a> builds
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226 a native build environment with a working toolchain. And in celebration, I've
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227 revamped the website with an actual navigation bar and content and such.</p>
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228
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229 <p>I should put out a release soon.</p>
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230
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231 <h2>December 5, 2006</h2>
31
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232 <p><a href=http://landley.net/hg/firmware?cl=27>Changeset 27</a> builds
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233 a relocatable armv4l cross-compile toolchain! Download the tarball,
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234 run ./download.sh, then run ./build.sh, then grab the "build/cross-compiler"
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235 directory and use "bin/armv4l-unknown-linux-gnu-gcc" out of that (which
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236 I admit is a bit of a mouthful, for which I blame the FSF).</p>
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237
71
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238 <h2>August 6, 2006</h2>
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239 <p>Mecurial repository created. Nothing to see yet, move along...</p>
72
478178b9337b SSI #include needs file=
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240 <!--#include file="footer.html" -->