This isn't a bug. Maybe it's a feature request. The message gives all the information you need. The --list function (or -l) works only on .xz files not .lzma files.
The command lzma is equivalent to xz --format=lzma so it creates a .lzma file. If you want to be able to print information about your compressed file, you need to create it with xz (--format=xz or --format=auto) foo. $ xz foo $ xz -l foo.xz Strms Blocks Compressed Uncompressed Ratio Check Filename 1 0 32 B 0 B --- CRC64 foo.xz ** Changed in: xz-utils (Ubuntu) Importance: High => Wishlist -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xz-utils in Ubuntu. https://bugs.launchpad.net/bugs/1291020 Title: unlzma -l fails to recognize files created by lzma Status in One Hundred Papercuts: Triaged Status in xz-utils package in Ubuntu: Triaged Bug description: unlzma -l fails to recognize files created by lzma: # lzma foo # unlzma -l foo.lzma unlzma: --list works only on .xz files (--format=xz or --format=auto) ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xz-utils 5.1.1alpha+20120614-2ubuntu2 ProcVersionSignature: Ubuntu 3.13.0-14.34-generic 3.13.5 Uname: Linux 3.13.0-14-generic i686 ApportVersion: 2.13.2-0ubuntu5 Architecture: i386 Date: Tue Mar 11 14:16:20 2014 Dependencies: gcc-4.9-base 4.9-20140222-0ubuntu1 libc6 2.19-0ubuntu2 libgcc1 1:4.9-20140222-0ubuntu1 liblzma5 5.1.1alpha+20120614-2ubuntu2 multiarch-support 2.19-0ubuntu2 InstallationDate: Installed on 2014-01-30 (40 days ago) InstallationMedia: Lubuntu 14.04 "Trusty Tahr" - Alpha i386 (20140129) SourcePackage: xz-utils UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1291020/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp