Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: CPIO Restore
Top Forums UNIX for Beginners Questions & Answers CPIO Restore Post 302980517 by Don Cragun on Monday 29th of August 2016 03:30:13 PM
Old 08-29-2016
I don't use a Linux system, but the standard requires that operands follow options on the command line as in:
Code:
cpio -iv --block-size=512 "/accts/bank/2day" "/accts/bank/lastyear" < /dev/nst0

instead of:
Code:
cpio -iv "/accts/bank/2day" "/accts/bank/lastyear" --block-size=512 < /dev/nst0

And, I still question whether /dev/nst0 is the device name you should be using? Just for the fun of it, try the commands:
Code:
dd if=/dev/st0 of=/dev/null count=1
cpio -itv --block-size=512 < /dev/st0

My suspicion is that you are adding archives to the your tape (without rewinding the tape after you have written an archive) and then reading from an unwritten portion of the tape. But, without knowing what else has been done to that tape device between the cpio command that created the archive and the cpio command that is trying to read the archive, there is no way to know.

The error you are getting is one that I have never seen from cpio before. A read should not require memory allocation. Memory allocation for input buffers should have been done before trying to read anything.
 

8 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

cpio restore - relative pathname

SCO/Caldera Unixware 711 Hi Friends, I have a cpio file which was created using relative pathnames. the relative pathname is users/data/* I want to restore these files to a different directory with cpio. An example restore directory is /home/suresh Is this possible ? Can someone... (4 Replies)
Discussion started by: sureshy
4 Replies

2. 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... (8 Replies)
Discussion started by: tayyabq8
8 Replies

3. AIX

mksysb restore - Wrong OS level for restore

Hi all, I am still working on my mksysb restore. My latest issue is during an alt_disk_install from tape I got the following error after all the data had been restored. 0505-143 alt_disk_install: Unable to match mksysb level 5.2.0 with any available boot images. Please correct this... (0 Replies)
Discussion started by: pobman
0 Replies

4. SCO

cpio Backup and restore to spare server fails

Our company purchased a spare HP ML350 server - identical to current one in use to act as minimal downtime replacement should the inevitable happen. After install of OS 5.0.7 and restore of cpiobackup I get this message: -: Syntax error: Hostname= $inexpected The SCO licence policy... (4 Replies)
Discussion started by: moondogi
4 Replies

5. UNIX for Dummies Questions & Answers

restore cpio file

Hi, under unix aix , i had to put a catostrophic patch from an editor ... i had first made a cpio backup connected root cd /application find . –print | cpio –ocvBm > /sauvegarde/sauvegarde.cpio Does someone know the command to restore my cpio backup ? thanks in advandce to everyone ... (7 Replies)
Discussion started by: bzh35
7 Replies

6. UNIX for Dummies Questions & Answers

Unable to restore cpio archive to a directory

Hello Every one, I want to back up all passwd files to /xyz/passfiles.cpio and Then restore them to /abc directory. Here is what I wrote: find / -name passwd | cpio -oc > /tmp/passwd.cpio and to restore cd abc cpio -ium < /tmp/passwd.cpio I can not find the files restored to /abc... (2 Replies)
Discussion started by: drdigital_m
2 Replies

7. UNIX for Beginners Questions & Answers

Cpio Restore didnt go to plan

Hello folks, one of the RAID drives in our SCO system crashed recently and being hot swap it was replaced. Problem was that on boot it stops at: Checking protected password and protected subsystem databases.... First I did #authck -a and checked /etc/auth/system/ttys as per instructions in a... (7 Replies)
Discussion started by: Redstar
7 Replies

8. 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... (1 Reply)
Discussion started by: am115998
1 Replies

LEARN ABOUT LINUX

cpio

CPIO(1) 						      General Commands Manual							   CPIO(1)

NAME

       cpio - copy files to and from archives

SYNOPSIS

       cpio   {-o|--create}   [-0acvABLV]   [-C   bytes]   [-H	 format]   [-M	message]  [-O  [[user@]host:]archive]  [-F  [[user@]host:]archive]
       [--file=[[user@]host:]archive]  [--format=format]  [--message=message]  [--null]  [--reset-access-time]	[--verbose]   [--dot]	[--append]
       [--block-size=blocks]  [--dereference] [--io-size=bytes] [--quiet] [--force-local] [--rsh-command=command] [--help] [--version] < name-list
       [> archive]

       cpio {-i|--extract} [-bcdfmnrtsuvBSV] [-C bytes] [-E file] [-H format] [-M message] [-R [user][:.][group]] [-I  [[user@]host:]archive]  [-F
       [[user@]host:]archive]  [--file=[[user@]host:]archive]  [--make-directories] [--nonmatching] [--preserve-modification-time] [--numeric-uid-
       gid] [--rename] [-t|--list] [--swap-bytes] [--swap] [--dot] [--unconditional] [--verbose] [--block-size=blocks]	[--swap-halfwords]  [--io-
       size=bytes]  [--pattern-file=file]  [--format=format] [--owner=[user][:.][group]] [--no-preserve-owner] [--message=message] [--force-local]
       [--no-absolute-filenames] [--sparse] [--only-verify-crc] [--to-stdout] [--quiet] [--rsh-command=command] [--help] [--version]  [pattern...]
       [< archive]

       cpio {-p|--pass-through} [-0adlmuvLV] [-R [user][:.][group]] [--null] [--reset-access-time] [--make-directories] [--link] [--quiet] [--pre-
       serve-modification-time] [--unconditional] [--verbose] [--dot] [--dereference] [--owner=[user][:.][group]] [--no-preserve-owner] [--sparse]
       [--help] [--version] destination-directory < name-list

REPORTING BUGS

       Report cpio bugs to bug-cpio@gnu.org

       GNU cpio home page: <http://www.gnu.org/software/cpio/>

       General help using GNU software: <http://www.gnu.org/gethelp/>

       Report cpio translation bugs to <http://translationproject.org/team/>

SEE ALSO

       cpio(5)

DESCRIPTION

       GNU cpio is fully documented in the texinfo documentation. To access the help from your command line, type

       info cpio

       The online copy of the documentation is available at the following address:

       http://www.gnu.org/software/cpio/manual

																	   CPIO(1)
All times are GMT -4. The time now is 10:47 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy