Is it possible to add a file to a package of already compressed .tar files? I explain myself better: I have a file mi_home.tar.bz2 , after I compressed it I realized that I have not added a directory to the .tar package, but I already compressed it with bzip2 at the maximum compression -9 or that is the same --best , and in fact it is quite heavy, weighs at least 8Gb. The compression process took at least 2 and a half hours; if I do the process again it will take no less than 3 hours to unzip, add the directory that I missed to the tar package and recompress everything again together.
Will there be a more efficient method to solve this, other than to perform the compression process again?