Installation of Ubuntu 7.04 to a JFS '/' filesystem fails consistently under test environment. The installer fails while "Copying files" or "Configuring system". These titles may not be exactly right. To reproduce this experiment install qemu-0.9.0. Use qemu-img to construct a 5 GB unencrypted uncompressed qcow2 image. Boot ubuntu-7.04-desktop-i386.iso. Use either the Manual tool for creating partitions integrated with the installer or GNOME Partition Editor from the System menu to construct a JFS partition at /dev/hda1, an Extended partition at /dev/hda2 and a Logical partion for swap at /dev/hda5. Formatting '/' with 'jfs_mkfs' is optional and does not affect the outcome. Begin the installation. At some point the installer will fail to make any forward progress despite many hours of waiting. The point at which the installer fails to progress varies. Testing the installer using all the default options resulted in an ext3 '/' partition which installs and works perfectly under the same test environment.
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