میخواستم نرم افزاری رو از طریق ubuntu software center نصب کنم ولی نمیشه و این پیغام رو میده
Requires installation of untrusted packages
The action would require the installation of packages from not authenticated sources.
dmraid gpart gparted jfsutils kpartx kpartx-boot libdmraid1.0.0.rc16 libgtkmm-2.4-1c2a libreadline5 reiser4progs reiserfsprogs xfsprogs
و وقتی repair رو میزنم
این پیغام رو میده
Failed to download repository information
Check your Internet connection.
W:GPG error:
http://us.archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/precise/main/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise_main_i18n_Index
, W:Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise_main_source_Sources Encountered a section with no Package: header
, W:Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise_restricted_binary-i386_Packages Encountered a section with no Package: header
, W:Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise_universe_binary-i386_Packages Encountered a section with no Package: header
, W:Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise_multiverse_binary-i386_Packages Encountered a section with no Package: header
, E:Some index files failed to download. They have been ignored, or old ones used instead.
با تشکر.