Hi, I reinstall Ubuntu, and unzipped cont-tmf.zip to $HOME/texmf, set TEXMFCNF to /usr/share/texmf/web2c (the ubuntu texmf.cnf directory), got the latest luatex binary from the minimal distribution, copied the latest helper scripts to the PATH, and tried again. well the reinstall of os was not for context ;) I have luatex -v This is LuaTeX, Version snapshot-0.20.2-2007121718 and LuaTools | version 1.1.1 - 2006+ - PRAGMA ADE / CONTEXT I tried luatools --generate and I get (comments with *******) LuaTools | loading /usr/share/texmf/web2c/texmf.cnf ********* This is ok LuaTools | preparing configuration in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/e027248d6557d124c703335e8a95ecd5.tma LuaTools | saving configuration in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/e027248d6557d124c703335e8a95ecd5.tma LuaTools | compiling configuration to ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/e027248d6557d124c703335e8a95ecd5.tmc ********* This all is ok LuaTools | locating list of /home/adityam/.texmf-config LuaTools | locating list of /home/adityam/.texmf-var LuaTools | locating list of /home/adityam/texmf LuaTools | locating list of /etc/texmf LuaTools | locating list of /var/lib/texmf LuaTools | locating list of /usr/local/share/texmf LuaTools | locating list of /usr/share/texmf ********* So far all texmf trees have been found LuaTools | locating list of /usr/share/texmf-{texlive LuaTools | locating list of tetex} ********* This is because there was -{texlive,tetex} line in texmf.cnf ********* seems to be a bug somewhere. LuaTools | scanning path /var/lib/texmf ********* Why were the earlier (that is user) texmf trees not scanned!! LuaTools | 80 files found on 20 directories with 0 uppercase remappings LuaTools | scanning path /usr/local/share/texmf LuaTools | 338 files found on 98 directories with 23 uppercase remappings LuaTools | scanning path /usr/share/texmf LuaTools | 6886 files found on 492 directories with 40 uppercase remappings LuaTools | preparing files in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/b8a1cf189bc82d8722e834ba72af3440.tma LuaTools | saving files in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/b8a1cf189bc82d8722e834ba72af3440.tma LuaTools | compiling files to ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/b8a1cf189bc82d8722e834ba72af3440.tmc LuaTools | preparing files in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/c99fbb6307ce58c4c8d3687f791de5f6.tma LuaTools | saving files in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/c99fbb6307ce58c4c8d3687f791de5f6.tma LuaTools | compiling files to ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/c99fbb6307ce58c4c8d3687f791de5f6.tmc LuaTools | preparing files in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/9ea5cec901854e6fa728c2ba01c0bb52.tma LuaTools | saving files in ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/9ea5cec901854e6fa728c2ba01c0bb52.tma LuaTools | compiling files to ///home/adityam/luatex-cache/context/a3981189059392d4f49181866527fd3d/trees/9ea5cec901854e6fa728c2ba01c0bb52.tmc LuaTools | LuaTools | runtime: 0.164 seconds Why did luatools decide not to scan my user texmf trees? Since the new files are located at /home/adityam/texmf and this tree is not scanned, format generation does not work. Aditya