unlzma -l fails to recognize files created by lzma

[gregrwm]

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)

[Alberto Salvia Novella (es20490446e)]

It renders essential functionality of the package (or a dependent one) broken.

[Mathew Hodson (mhodson)]

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