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I just performed an install of TeXLive 2012 over the network, and I cannot execute any of the binaries at all. Running tex --version returns zsh: exec format error: tex, even install-tl in /opt/texlive/2012 reports the same error.

What am I doing wrong? The only option I changed in install-tl was set the install path to /opt/texlive/2012 instead of the default /usr/local/texlive/2012, and I made sure the binaries were set to Linux x86-64, which is my system archictecture.

EDIT The mysterious error disappeared when I re-downloaded the TeXLive network installer and ran it again. I have no idea what happened or why.

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You should make sure that your PATH variable contains /opt/texlive/2012/bin/x86_64-linux. Try the command line /opt/texlive/2012/bin/x86_64-linux/tex --version – egreg Sep 24 '12 at 8:56
I doubt it's a PATH issue: the message would be zsh: command not found: tex. Can you please try file $(which tex), which should print /opt/texlive/2012/bin/x86_64-linux/tex: ELF 64-bit LSB executable etc, and file /opt/texlive/2012/install-tl, which should be a Perl script, ASCII text executable. Also make sure your machine really is 64bits (this may sound stupid, but I've already seen this mistake). – mpg Sep 25 '12 at 7:50
Re-downloading the TeXLive network installer and re-running it fixed the problem, whatever it was. Weird. – zoqaeski Sep 29 '12 at 9:04
OK, 'too localised' then? – Joseph Wright♦ Sep 29 '12 at 9:11

closed as too localized by egreg, lockstep, diabonas, morbusg, Marco Daniel Sep 29 '12 at 10:03

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