On Sun, 2011-09-04 at 15:49 +0800, xinyou yan wrote: > 2011/9/4 Aaron Konstam <akonstam@xxxxxxxxxxxxx>: > > On Sat, 2011-09-03 at 22:08 +0800, xinyou yan wrote: > >> 2011/9/3 Chris Tyler <chris@xxxxxxxxxxx>: > >> > On Sat, 2011-09-03 at 20:36 +0800, xinyou yan wrote: > >> >> I want to make sure one thing . > >> >> Can I use tar to pack the file created by dd. > >> >> I found use tar -rf xx.tar yyy.dd > >> >> can't make the file into the tar file . > >> > > >> > It depends on what is in the dd file and what you're trying to do. > >> > > >> > I assume that the dd file is a direct copy of a filesystem (for example, > >> > "dd if=/dev/sda2 of=yyy.dd" assuming that /dev/sda2 is a filesystem > >> > partition). > >> > > >> > If you simply want to reduce the size of the dd file, use gzip: > >> > gzip yyy.dd # produces yyy.dd.gz > >> > > >> > >> I want it be compressed by gzip, > >> and the gzip files to a archive file (such as tar file) > >> Howerver gzip file can't be add to a tar file (-r) > >> > >> > If you want to create a tar archive of the individual files within the > >> > dd image, you will have to mount the dd file first using the loopback > >> > option: > >> > mkdir /tmp/yyy > >> > mount -o loop yyy.dd /tmp/yyy > >> > cd /tmp > >> > tar cvf xx.tar yyy > >> > >> That's mean tar must taring a regular file or directory . > >> I wonder . why must tar the yyy (directory) > >> > >> you mean mount to a directory , and tar the directory ? > >> > >> > >> What I want 's just a archive file that contain some sigle dd files . > >> > >> thank you . > >> > >> You mail help me understand more > >> > > I am not sure what you want to do,, but if you have a gziped tar file > > and you want to add another file to it this should work: > > If your archive is archive.tgz > > Uncompress archive: gunzip archive.tgz > > Add a another file : tar -rf archive.tar second_file > > Compress the archive: gzip archive.tar > > Yes it can achieve my work, > However , I just can't undestand , tar -rf xx.tar yyy.dd to a regular > file tar ( can 't add the size) > And When i tar -xf xx.tar. It will give a error message : tar: > Unexpected EOF in archive > > > This will recreate a new archive.gz file with the second file added. > By the way ,it will take many times to do it. > > > and so on. > > > > This procesws could be automates by a bash script. I am not sure what the problem is. The following works for me: tar cf archive.tar first tar -rf archive.tar second This produces a file that when one runs: tar xf archive.tar produces the files first and second in the directory. And as I said is that the complexity of the process can be reduced by creating a shell script with the new file name as the argument and resulting in the archive. -- ======================================================================= The most hopelessly stupid man is he who is not aware that he is wise. ======================================================================= Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam@xxxxxxxxxxxxx -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
