reading an AIX cpio tape on RH8

Operating Systems Linux Red Hat reading an AIX cpio tape on RH8

05-11-2009

Registered User

1, 0

Join Date: Jan 2009

Last Activity: 13 May 2009, 2:17 PM EDT

Posts: 1

Thanks Given: 0

Thanked 0 Times in 0 Posts

reading an AIX cpio tape on RH8

Thanks for any insights you might have...

I have a RH8 system setup with a DAT drive.
I have a AIX tape that was made using cpio.

Bottom line is I need to read the AIX tape into the RH box.

I was able to do cpio -itv --no-absolute-filenames < /dev/st0 and read the table of contents.

If I try cpio -icvdu[s b S] --no-absolute-filenames < /dev/st0,
only one of the s b S at a time. I get warnings.....

cpio: warning: skipped 50404580 Bytes of junk
cpio: memory exhausted

I should be able to read this AIX tape and have cpio do the
required byte swap.

I would really appreciate any help you can give me.

thanks.

Mike

mike114327

View Public Profile for mike114327

Find all posts by mike114327

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Cpio - input files (from list) are stored in different order inside cpio archive - why?

Due to budget constraints I have to reinvent an Enterprise backup system in a SPARC (sun4v) Solaris estate (10 & 11). (yep - reinvent wheel, fun but time consuming. Is this wise?! :confused: ) For each filesystem of interest, to try to capture a 'catalog' at the front of each cpio archive (for...

2. AIX

Ejecting tape on AIX & Some Tape commands

I am trying to use this command to eject the tape mt -f /dev/rmt/0 unload but it gives me error mt -f /dev/rmt/0 unload mt: 0511-575 unload is not a recognized subcommand. Usage: mt Subcommand Valid subcommands are: weof eof fsf bsf ...

3. AIX

CPIO restoration from LTO2 tape media on AIX 4.3.3

Hi, AIXers :) Recently i'm playing around with cpio command, when i try to list out content from LTO2 Tape media using command: #cpio -itvc < /dev/rmt1 it's stopped at particular path 100777 root 1042591 Mar 24 10:09:05 2012 /home/uv/bin/usd and there was an error thrown out: ...

4. UNIX for Dummies Questions & Answers

Remote Tape Backup Using cpio

Hi all, I've got two HP machines running HP-UX 11.31 and would like to remotely backup one server onto another server's tape unit using the cpio command. The two servers use a secured communication channel, i.e ssh. Kindly help, Koketso

5. SCO

CPIO listing from tape question...

Hi. I have this old server onto which i needed to list the content of a tape. This is a SCO box (SCO_SV 3.2 5.0.6 i386) and backup was done using cpio. #tape status status : ready beginning-of-tape soft errors : 0 hard errors : 0 underruns : 0 #dtype /dev/rct0 /dev/rct0 ...

6. UNIX for Advanced & Expert Users

extract cpio backup on tape

Hi, I was wondering, If I take a backup using cpio to tape from UNIX, can I extract data on windows box using cpio for windows? Anybody ever do this? Thanks.

7. UNIX for Dummies Questions & Answers

Reading label from tape

Hi, I have a HP SURESTORE 40 tape drive. Several archives are stored on it using DUMP. I have several volumes stored on the tape... If I issue restore -rf /dev/st0 will it restore just the arhcive that the tape reader is currently on or will it restore all of them? Thanks,

8. UNIX for Advanced & Expert Users

Reading from a corrupted tape

I've got a backuptape in cpio format that was accidentally overwritten with a very small batch file. As I assume that the cpio header has been overwritten, I cannot extract files from the backup in the conventional manner: ( cpio -itv </dev/rct0 cpio: this is not a cpio file, bad header) ...

9. UNIX for Dummies Questions & Answers

Selective restore from a cpio tape archive

Hi, I use following command to restore data from my cpio tape archive: $cpio -icvd < /dev/rct0 But this'll restore all tape contents to the current path, what if I want only selected files from the tape, suppose I want /home/compdir/home2/Rev83/data/PL/01/*.* files to be restored...

10. UNIX for Dummies Questions & Answers

error reading from tape

Hi all, I am attempting to read tar images from a DLT tape, and have recieved an error, which i don't know: tar: blocksize = 8 tar: directory checksum error I have been able to read from other tapes, using the same command (tar -tvf /devicename) but this time i have an...

LEARN ABOUT HPUX

backup

backup(1M)																backup(1M)

NAME

       backup - backup or archive file system

SYNOPSIS

       [-archive]

DESCRIPTION

       The  command  uses find(1) and cpio(1) to save a archive of all files that have been modified since the modification time of on the default
       tape drive should be invoked periodically to ensure adequate file backup.

       The option suppresses warning messages regarding optional access control list entries.  backup(1M) does not backup optional access  control
       list  entries  in  a  file's access control list (see acl(5)).  Normally, a warning message is printed for each file having optional access
       control list entries.

       The option causes backup to save all files, regardless of their modification date, and then update using touch(1).

       prompts you to mount a new tape and continue if there is no more room on the current tape.  Note that this prompting does not occur if  you
       are running from cron(1M).

       The  option  causes to start a file system consistency check (without correction) after the backup is complete.	For correct results, it is
       important that the system be effectively single-user while is running, especially if is allowed to automatically fix whatever  inconsisten-
       cies it finds.  does not ensure that the system is single-user.

       You can edit to customize it for your system.  Several local values are used that can be customized:

	      specifies which directories to back up recursively (usually
			     meaning all directories);

	      file name where start and finish times, block counts, and error messages
			     are logged;

	      file name whose date is the date of the last archive;

	      file name that is checked by
			     to remind the next person who logs in to change the backup tape;

	      file name where start and finish times and
			     output is logged.

       You  may  want  to  make  other	changes,  such	as  whether or not does automatic correction (according to its arguments), where output is
       directed, other information logging, etc.

       In all cases, the output from is a normal archive file (or volume) which can be read using with the option.

   File Recovery
       creates archive tapes with all files and directories specified relative to the root directory.  When recovering files from an archive  tape
       created by you should be in the root directory and specify the directory path names for recovered files relative to the root directory When
       specifying the directory path name for file recovery by do not precede the leading directory name with a slash.	If  you  prefer,  you  can
       also use with a option to determine how files and directories are named on the archive tape before attempting recovery.

WARNINGS

       Refer to in cpio(1).

       When runs out of tape, it sends an error to standard error and demands a new special file name from

       To continue, rewind the tape, mount the new tape, type the name of the new special file at the system console, and press

       If  is being run unattended from cron(1M) and the tape runs out, terminates, leaving the process still waiting.	Kill this process when you
       return.

FILES

       parameterized file names

SEE ALSO

       cpio(1), find(1), touch(1), cron(1M), fbackup(1M), frecover(1M), fsck(1M), acl(5).

																	backup(1M)

Red Hat