- When writing compressed data to a tape, it is generally necessary to
- pad the output with zeroes up to a block boundary. When the data is
- read and the whole block is passed to 4mgunzip24m for decompression, 4mgunzip0m
- detects that there is extra trailing garbage after the compressed data
- and emits a warning by default. You have to use the --quiet option to
- suppress the warning. This option can be set in the 1mGZIP 22menvironment
- variable as in:
- for sh: GZIP="-q" tar -xfz --block-compress /dev/rst0
- for csh: (setenv GZIP -q; tar -xfz --block-compr /dev/rst0
-
- In the above example, gzip is invoked implicitly by the -z option of
- GNU tar. Make sure that the same block size (-b option of tar) is used
- for reading and writing compressed data on tapes. (This example
- assumes you are using the GNU version of tar.)
+ When writing compressed data to a tape, it is generally necessary to
+ pad the output with zeroes up to a block boundary. When the data is
+ read and the whole block is passed to 4mgunzip24m for decompression, 4mgunzip0m
+ detects that there is extra trailing garbage after the compressed data
+ and emits a warning by default. You can use the --quiet option to sup-
+ press the warning.