>> Looks like your module-init-tools is either outdated or damaged. Do the >> modprobe and insmod binaries in your $PATH match the ones installed by >> module-init-tools? > > $ which insmod modprobe > /sbin/insmod > /sbin/modprobe > > $ pacman -Q module-init-tools > module-init-tools 3.10-1 > > Surprisingly, inserting the module with insmod had worked! > > $ insmod /lib/modules/2.6.30-ARCH/kernel/fs/isofs/isofs.ko > $ > > And the DVD mounted just fine. Modprobe, however, still throws the > same error. I tried to make it more verbose: > > $modprobe -v isofs > insmod /lib/modules/2.6.30-ARCH/kernel/lib/zlib_inflate/zlib_inflate.ko > WARNING: Error inserting zlib_inflate > (/lib/modules/2.6.30-ARCH/kernel/lib/zlib_inflate/zlib_inflate.ko): > Invalid module format > FATAL: Error inserting isofs > (/lib/modules/2.6.30-ARCH/kernel/fs/isofs/isofs.ko): Invalid module > format Check /etc/modprobe.d/ for isofs or zlib_* etc. Also try running "depmod -ae", and the modprobe ... -- damjan