Old releases of Ubuntu get archived to the old-releases server. This often includes the older point releases of currently supported Ubuntu releases. You can get desktop images for 14.04.1 by clicking the link to that version, which brings you to the trusty folder.
Assuming you want one of the usual desktop ISO images (and not, for example, a server ISO image), you have 32-bit and 64-bit options, as with other releases:
- Ubuntu 14.04.1, 32-bit:
- Ubuntu 14.04.1, 64-bit:
If you’re looking for the image built specially for compatibility with 64-bit Macs, you’ll notice that hasn’t been archived there (at least as of this writing). Instead it is on the cdimages server, which hosts many of the lesser-used ISO images:
- Ubuntu 14.04.1, for 64-bit Macs:
Since those are the official primary download locations for these images, they should be expected to remain available (and I have tested the three links posted here–they all work).
The md5 hashes for Ubuntu 14.04.1, including all the above-linked images, remain available on the 14.04 section of the UbuntuHashes page.
If the problems you had with the 14.04.2 ISO image were with the installation, using the old 14.04.1 image is usually a good solution. However, if they happened from updating your 14.04 system, then installing from 14.04.1 and not installing any updates is at best only a short-term solution. This is because some of the updates users receive are provided to patch security vulnerabilities that have been discovered.
Therefore, you may consider proceeding in one of these ways:
- Try an older kernel. You can probably do this with your currently installed system. This fixes–or, in any case, works around–many hardware problems that start after an update. By default Ubuntu keeps some older kernels, when a kernel update is installed. Hold Shift while booting to show the GRUB menu and (if needed) select Advanced options. Then you can select from the bootable kernels that are installed and try out older ones.
- After installing, allow security updates and not others, but do update it. (You can select “Important security updates” in the Updates tab in Software Sources, but uncheck “Recommended,” “Pre-released,” and “Unsupported” updates.) See if that prevents the problem. It might not, though.
- Try to figure out specifically which updates are causing the problem and disable only them. Some troubleshooting would be required for this.
- Try to find solutions to the problems you’ve had. You can post a new question about this (or multiple new questions about different problems, if the problems seem separate from one another).