update : i installed xarchiver on ubuntu & tried extracting the 2 files in the links posted above by me but the results were exactly the same as with file-roller.
i thought maybe the source files in the above links from hard disk sentinel are corrupted so i downloaded both the above mentioned files on a windows computer & tried extracting them with 7zip. the results were flawless, the extraction was successful & the contents worked perfectly. bottom line, both gnome archive manager / file-roller & xarchiver failed to extract the above mentioned .gz files on ubuntu 20.04.2 waiting in anticipation for a resolution. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1929304 Title: file-roller / gnome archive manager fails to extract To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/file-roller/+bug/1929304/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs