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Full Discussion: Piping to /dev/rmt0 tape ?
Operating Systems AIX Piping to /dev/rmt0 tape ? Post 302322479 by Browser_ice on Thursday 4th of June 2009 12:27:58 AM
Old 06-04-2009
Piping to /dev/rmt0 tape ?

I am trying to find a way to do the following on an AIX 4.2 with Korn:

tar cvfpdl - . | compress > /dev/rmt0

The /dev/rmt0 is the device we use when we tar directly to it.

I want to compress a folder's content to tape. Our current TAR does not have compression at all. We only have 'compress' as compression command.

When I use the command above, it shows it started to TAR some files but then it failes with a message:
A system call received a parameter that is not valid.


Also, I read there is a GNU tar with compression but do not know if it would work on an 4.2 AIX
 

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th_get_pathname(3)						  C Library Calls						th_get_pathname(3)

NAME
th_get_pathname, th_get_uid, th_get_gid, th_get_mode, th_get_crc, th_get_size, th_get_mtime, th_get_devmajor, th_get_devminor, th_get_linkname - extract individual fields of a tar header TH_ISREG, TH_ISLNK, TH_ISSYM, TH_ISCHR, TH_ISBLK, TH_ISDIR, TH_ISFIFO - determine what kind of file a tar header refers to TH_ISLONGNAME, TH_ISLONGLINK - determine whether the GNU extensions are in use SYNOPSIS
#include <libtar.h> char *th_get_linkname(TAR *t); char *th_get_pathname(TAR *t); mode_t th_get_mode(TAR *t); uid_t th_get_uid(TAR *t); gid_t th_get_gid(TAR *t); int th_get_crc(TAR *t); off_t th_get_size(TAR *t); time_t th_get_mtime(TAR *t); major_t th_get_devmajor(TAR *t); minor_t th_get_devminor(TAR *t); int TH_ISREG(TAR *t); int TH_ISLNK(TAR *t); int TH_ISSYM(TAR *t); int TH_ISCHR(TAR *t); int TH_ISBLK(TAR *t); int TH_ISDIR(TAR *t); int TH_ISFIFO(TAR *t); int TH_ISLONGNAME(TAR *t); int TH_ISLONGLINK(TAR *t); VERSION
This man page documents version 1.2 of libtar. DESCRIPTION
The th_get_*() functions extract individual fields from the current tar header associated with the TAR handle t. The TH_IS*() macros are used to evaluate what kind of file is pointed to by the current tar header associated with the TAR handle t. The TH_ISLONGNAME() and TH_ISLONGLINK() macros evaluate whether or not the GNU extensions are used by the current tar header associated with the TAR handle t. This is only relevant if the TAR_GNU option was used when tar_open() was called. SEE ALSO
tar_open(3) University of Illinois Jan 2001 th_get_pathname(3)
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