[snip]
Maybe I should try dd with bs=16M? But will that pad the output file with an unacceptable-to-tar chunk at the end since the tapefile is unlikely to be an exact multiple of 16M?
In my experience, dd should read in chunks of 16M but the last block (incomplete) will not be filled in (padded) to complete the block.
Even if it was, here is what my gnu tar thinks of a tar with garbage at the end:
------- [EMAIL PROTECTED](p1)(0):~/tartest% tar czvf foo.tar.gz foo foo/ foo/bar/ foo/bar/baz/ [EMAIL PROTECTED](p1)(0):~/tartest% ls -l foo.tar.gz -rw-r--r-- 1 areid staff 152 Mar 11 14:42 foo.tar.gz [EMAIL PROTECTED](p1)(1):~/tartest% dd if=/dev/zero of=blank bs=1k count=10 10+0 records in 10+0 records out [EMAIL PROTECTED](p1)(0):~/tartest% ls -l total 16 -rw-r--r-- 1 areid staff 10240 Mar 11 14:43 blank drwxr-xr-x 3 areid staff 102 Mar 11 14:42 foo/ -rw-r--r-- 1 areid staff 152 Mar 11 14:42 foo.tar.gz [EMAIL PROTECTED](p1)(0):~/tartest% cat foo.tar.gz blank > test.tar.gz [EMAIL PROTECTED](p1)(0):~/tartest% tar tzf test.tar.gz
gzip: stdin: decompression OK, trailing garbage ignored foo/ foo/bar/ foo/bar/baz/ tar: Child returned status 2 tar: Error exit delayed from previous errors [EMAIL PROTECTED](p1)(2):~/tartest% ---
Yes, it does return '2' but the data has been extracted already.
Actually, come to think of it, gzip is ignoring the garbage..
----- [EMAIL PROTECTED](p1)(0):~/tartest% gunzip foo.tar.gz [EMAIL PROTECTED](p1)(0):~/tartest% cat foo.tar blank > test.tar [EMAIL PROTECTED](p1)(0):~/tartest% tar tvf test.tar drwxr-xr-x areid/staff 0 2004-03-11 14:42:08 foo/ drwxr-xr-x areid/staff 0 2004-03-11 14:42:08 foo/bar/ drwxr-xr-x areid/staff 0 2004-03-11 14:42:08 foo/bar/baz/ [EMAIL PROTECTED](p1)(0):~/tartest% -----
Tar doesn't even complain on my system here: tar (GNU tar) 1.13.25
Thanks.
-- Joshua Baker-LePain Department of Biomedical Engineering Duke University
Just my 2cents.. antoine
-- Antoine Reid Administrateur Système - System Administrator
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