$ tree tmp_fs
tmp_fs
├── bin
├── boot
│   └── kernel
├── include
├── lib
└── share
    └── misc
        └── logo

6 directories, 2 files

$ tar cC tmp_fs . | tar t
./
./share/
./share/misc/
./share/misc/logo
./lib/
./boot/
./boot/kernel
./include/
./bin

tar -C / -xvf myfile.tar