With latest svn, LyX is not able to create the tmpdir: $ lyx ../../../src/support/filetools.cpp(328): LyX could not create temporary directory in /tmp'
$ lyx -dbg files Setting debug level to files Debugging `files' (Files used by LyX) ../../../src/support/filetools.cpp(322): createTmpDir: tempdir=`/tmp' createTmpDir: mask=`lyx_tmpdir' ../../../src/support/FileName.cpp(375): Unable to create temporary file with following template: /lyx_tmpdir ../../../src/support/filetools.cpp(328): LyX could not create temporary directory in /tmp' Abdel, I see that you recently touched that. -- Enrico