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 > > -Chris > > -- > 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 > -- ---------------------------------------------------------------- 嘉谟之行 "昔我往矣，杨柳依依 ； 今我来思 ，雨雪霏霏" ---------------------------------------------------------------- -- 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
