topic Re: Tar trouble! in Operating System - HP-UX

Tar trouble!

David Heath_1 — Fri, 25 Jan 2002 14:54:10 GMT

Hope someone can help!

I have two machines and need to copy the home area of one and transfer it to the other. Basically, I have tried to tar the home using the following command.

tar -cvf /home/home.TAR /home

However, this tars fine until it trys to tar the actually tar I am making and so fills the up the home area and runs out of space. I have tried to tar it to a different file system such at /tmp but there isn't enough space in there and that then fills up. How can I tar the home area with out the tar file getting stuck tarring itself?!

Oh and I cant stick it on a tape either!
Can I make a list of all the file names or something and then make the tar read the names of these files and tar the files, maybe?!!
Many thanks, David,

Re: Tar trouble!

Nobody's Hero — Fri, 25 Jan 2002 15:02:04 GMT

Try your tar from another directory. Are you in the /home directory when you run the tar?
go to /
run > tar -cvf /home/home.tar /home

Bob

Re: Tar trouble!

Helen French — Fri, 25 Jan 2002 15:02:31 GMT

Hi David,

If you have NFS configured on the system, then mount the other /home file system on your original server and copy the files using cp, cpio etc.

eg: find /source_dir -depth | cpio -pdlmuva /dest_dir

HTH,
Shiju

Re: Tar trouble!

Nobody's Hero — Fri, 25 Jan 2002 15:03:20 GMT

What I mean is,
tar -cvf home.tar /home

Re: Tar trouble!

Christopher McCray_1 — Fri, 25 Jan 2002 15:03:26 GMT

Just for my understanding, for tmp you tried:

# tar cvf /tmp/home.TAR /home

If that is the case and you still don't have room, try to find another filesystem with room, increase /tmp, if possible.

How about rcp?

Just my thoughts, hope they help

Chris

Re: Tar trouble!

Steven Sim Kok Leong — Fri, 25 Jan 2002 15:07:22 GMT

Hi,

You can use the wildcard * instead. As long as you can perform

# ls /home/*

then this will work.

If you use the wildcard *, the shell will expand it before the tar gets executed.

# tar -cvf /home/home.TAR /home/*

This will prevent home.TAR from tar'ing itself subsequently.

Hope this helps. Regards.

Steven Sim Kok Leong

Re: Tar trouble!

David Heath_1 — Fri, 25 Jan 2002 15:08:39 GMT

Whoa! Thanks for all the quick replies!

Unfortunately I cant extend the filesystems, there not my machines. I was hoping there would be an easier solution than extending them all.

I am doing the tar from outside the home directory,
tar -cvf /home/home.TAR /home

And yes when I was in /tmp I did
tar -cvf /tmp/home.TAR /home

Cheers fo all your helps,
points coming soon!

David

Re: Tar trouble!

Andreas Voss — Fri, 25 Jan 2002 15:09:49 GMT

Hi,

with the combination of find and cpioyou can get it work like this:

find /home ! -name home.CPIO -depth | cpio -oc >/home/home.CPIO

On the other machine do:

cpio -imdc
Regards

Re: Tar trouble!

harry d brown jr — Fri, 25 Jan 2002 15:11:50 GMT

Why not just use rcp? Especially if you are moving this to another machine?

live free or die
harry

Re: Tar trouble!

David Heath_1 — Fri, 25 Jan 2002 15:12:28 GMT

Ok I am tarring from outside of /home as we speak.

If this doesn't work will the wildcard command transverse througout symbolic links to other machines? The home directory has about 10 different links to different machines, which I dont want to be added to the tar?

Thanks all.

Re: Tar trouble!

Robin Wakefield — Fri, 25 Jan 2002 15:14:10 GMT

Hi David,

One way:

# create the tar
find /home -type f | head -1 | xargs tar cvf /home/home.TAR
# then add the rest...
find /home ! -name "home.TAR" -type f | tail +2 | xargs tar rvf /home/home.TAR

Rgds, Robin.

Re: Tar trouble!

Craig Rants — Fri, 25 Jan 2002 15:17:13 GMT

Try

tar cvf - /home | gzip > /tmp/home.tar.gz

This should save a lot of space and time.

GL,
C

Re: Tar trouble!

Helen French — Fri, 25 Jan 2002 15:19:33 GMT

Hi David,

Do a 'bdf' and findout a file system which has free space on it. Then try a tar.

# tar -cvf /test/home.tar /home

HTH,
Shiju

Re: Tar trouble!

Steven Sim Kok Leong — Fri, 25 Jan 2002 15:22:05 GMT

Hi,

If you have other filesystems such as nfs-mounted filesystems within /home, then:

# tar cvf home.tar `find /home -xdev -print`

-xdev will prevent the files in other filesystems other than /home from being listed.

Hope this helps. Regards.

Steven Sim Kok Leong

Re: Tar trouble!

David Heath_1 — Fri, 25 Jan 2002 15:27:57 GMT

Ok!! Too many answers to keep up with.

I tried tar'ing from outside the directory - same problem, the tar tries to tar itslef fills up /home.

/home is the largest filesystem on the machine with 600mb of data out of 1GB.

The wildcard solution didn't work because I couldn't do a ls /home/*.

The CPIO command didn't work wither.

How can I do rcp?

Thanks.

Re: Tar trouble!

Andreas Voss — Fri, 25 Jan 2002 15:33:00 GMT

Hi,

the use of rcp could be:

rcp -rp /home :/

Regards

Re: Tar trouble!

Helen French — Fri, 25 Jan 2002 15:33:34 GMT

Hi David,

Check this out for help in rcp:

http://www.docs.hp.com/hpux/onlinedocs/B2355-90148/B2355-90148.html

HTH,
Shiju

Re: Tar trouble!

harry d brown jr — Fri, 25 Jan 2002 15:35:21 GMT

Go to the directory

rcp -rp /home/directory2Bcopied remothostname:/home

like this:

cd /home
rcp -rp ./harry otherhost:/home

live free or die
harry

Re: Tar trouble!

Christopher McCray_1 — Fri, 25 Jan 2002 15:37:21 GMT

Hello again,

First make a /.rhosts file on both machines(if doesn't exist)

add the following entries:

root host1
root host2

save it. Also, make sure that the entries for login, shell and exec are not commented out in your /etc/inetd.conf and /etc/services files. If they are, uncomment them and run inetd -c.

then on host1:

# rcp /home/* host2:/home

Hope this helps
Chris

Re: Tar trouble!

Christopher McCray_1 — Fri, 25 Jan 2002 15:38:28 GMT

oops, of course rcp -rp!!

Good luck
Chris