cpio

[Prathap_1]

Hi
I am trying to read the contents of the tape with the cpio -icBvt /dev/rmt/1m. It is getting hanged there. Can anyone help me out. Help me out in extracting the tape to disk.

Thanks
Prathap.

[harry d brown jr]

DO this:

dd if=/dev/rmt/1m of=/large_diskarea


live free or die
harry

[Sanjay_6]

Hi Pratap,

Try

cpio -itBv < /dev/rmt/1m

Are you using the redirector "<". Also You are using the "c" as well as "t" option,

c --> Copy (extract)
t --> List Contents (No extract)

Try this,

cpio -itBvdl < /dev/rmt/1m
to list contents of tape

cpio -icBvdul < /dev/rmt/1m
to extract contents of tape to disk. Keep an eye on the path it is extracting to.

Hope this helps.

Regds

[S.K. Chan]

You must use the same options to read the tape that were used to write it.
# cpio -itcvB < /dev/rmt/1m
should work.

[Prathap_1]

Hi Sanjay
Thanks for the info. I have tried the options given by you. I am getting the error called 'Out of Phase--get help', Perhaps the C option should not be used.

Thanks
Prathap.

[H.Merijn Brand (procura]

don't forget the (too large) block size in order not to miss any bits:

dd if=./dev/rmt/1m ibs=102400 of=tape.cpio
file tape.cpio

if cpio still has trouble reading the data, try to use GNU's version of cpio and omit the -c argument. GNU's cpio will try to find out itself and understands more cpio formats than native HP-UX cpio.

GNU cpio can be found and installed from e.g. ftp://download.xs4all.nl/pub/mirror/gnu/cpio/cpio-2.4.2.tar.gz (I couln't find a precompiler binary for HP-UX)

[Sanjay_6]

Hi Pratap,

Try these links,

http://us-support3.external.hp.com/cki/bin/doc.pl/sid=a8192c390200bbbf49/screen=ckiDisplayDocument?docId=200000007948508

http://us-support3.external.hp.com/cki/bin/doc.pl/sid=a8192c390200bbbf49/screen=ckiDisplayDocument?docId=200000024598480

Hope this helps.

Regds

[Prathap_1]

Hi Sanjoy
I tried the solutions given in the links. Still I am getting the error. If I specify the 'c' option, I am getting the error C option should not be used. I I did't specify the 'c' option, I am getting the error 'C' option should be used.

Thanks
Prathap.

[H.Merijn Brand (procura]

Here's a precompiled GNU cpio binary

put it somewhere in your path and issue

# ncpio --io-size=102400 -i -t -v
and tell us what happens

[Aftab Sadiq]

Hi Prathap,
Did you rewind the tape first? Rewind the tape first with
mt -t /dev/rmt/1m rew
and then use cpio command to list the contents

I hope this will help

Aftab

[H.Merijn Brand (procura]

Tried myself to pick up that binary, but got a 404, maybe this helps

# cd /tmp
# gzip -d # ncpio --io-size=102400 -i -t -v

[Sanjay_6]

Hi Pratap,

ARe you able to list the contents of the archive.

cpio -itBvdul < /dev/rmt/1m

If you are able to do so, then try,

cpio -icBvdulR
You could be having a media problem. Have you tried with another media. Or you can try this media on another server.

Hope this helps.

Regds

[jd-gt]

One person suggested the below. Do you need to
rewind the tape inbetween the list command and the extract command?

mt -t /dev/rmt/1m
cpio -itBvdul < /dev/rmt/1m

If you are able to do so, then try,

mt -t /dev/rmt/1m
cpio -icBvdulR

[Prathap_1]

Hi Procura
Can you let me know where can I get the ncpio utility.

Thanks
Prathap.

[Prathap_1]

Hi
I have tried all the solutions, still I am not able to read the contents of the tape.

Thanks
Prathap.

[Sanjay_6]

Hi Pratap,

Try this,

dd if=/dev/rmt/1m ibs=1024k obs=1k | cpio -it

Hope this helps.

Regds

[Prathap_1]

Hi Sanjay
I have tried but still getting the same error.

Thanks
Prathap.

[melvyn burnard]

Have you tried using the pax command?
pax (Portable Archive eXchange) is able to read and save both tar and cpio format tapes.

man pax for examples.

[Prathap_1]

Hi Melvyn
Yeah. I have tried pax -r -f /dev/rmt/1m. Still I am not able to read the tape.

Thanks
Prathap.

[Darrell Allen]

Hi Prathap,

Maybe I missed this, but what was the complete command line used to create the cpio archive?

Darrell

[melvyn burnard]

One more suggestion, use th e-c option in th ecommand line, but drop the -B option.
I have seen that cause similar problems in the past.
Of course you could have bad media after all this. ;-{

[H.Merijn Brand (procura]

ncpio: s800 shared executable dynamically linked

(temporary) avalable from

http://home.hccnet.nl/h.m.brand/ncpio

Good luck

[Frank Slootweg]

We first need to be sure of the exact format of the tape, so please execute the following commands and post the resulting output:

mt -t /dev/rmt/1mnb # Note: Added "nb".
dd if=/dev/rmt/1m of=/tmp/record bs=64k count=1
ll /tmp/record
file /tmp/record
rm /tmp/record

Note that especially the output of the ll(1) command (gives the record size of the tape) and of the file(1) command (tries to identify the type of archive/file) is important.

[Prathap_1]

Hi Frank
I have tried using 'dd' command. Please find attached as the output of the 'dd' command.

Thanks
Prathap.

[Helen French]

Hi Prathap,

Check this thread of Harry:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x29bc0bce6f33d6118fff0090279cd0f9,00.html

HTH,
Shiju