file system

[Ragni Singh]

Please tell me how to tar up an entire file system. The I can scp it to another system and untar the whole thing there. Any help will be greatly appreciated and points will be given.

[Jeff Schussele · Accepted solution]

Hi Sanman,

Simply cd to the TOP of that FS & issue the following:

#tar cvf /tmp/fsname.tar ./*.*

Note you must NOT create the tar file in the same FS - it MUST be outside the FS you are tarring. So care must be given as to where you tar to - make sure you have sufficient space. The FS you create the tar file in must support > 2Gb files IF the tar file will reach that size. The *.* is needed to tar files that contain "."s

HTH,
Jeff

[Arockia Jegan]

Use tar cvf

output file is the archive name. If u want to tar the entire file system replace the input files with the file system name.

[Sachin Patel]

Say you want to tar /data
#cd /
#tar cvf /dev/rmt/??? data/

And it will create tape with all home directorys.

then at another system.

#cd /
#tar xvf /dev/rmt/??? and it will put data directory there.

Sachin

[Sandip Ghosh]

I guess cpio would be better option for you to copy the file system from one server to other.

PUSH method
-----------
# (find -xdev|cpio -coax) | remsh "cd ;cpio -icdmuxla"

PULL method
-----------
# remsh "cd ;find -xdev | cpio -coax"|cpio -icdmuxla

Sandip

[S.K. Chan]

Or across the network (you must setup .rhosts correctly).
On the source machine, run these ..

# cd /source_dir
# tar cvf - . | remsh target_machine '(cd /dest_dir; tar -xvf -)'

[Sanjay_6]

Hi Sanman,

Say you want to tar a filesystem mounted at /mount_point, try this,

cd /
tar cvf /dir1/file_name.tar mount_point

This will create an archive at /dir1 and the archive name will be file_name.tar . The archive will have everything under /mount_point without the leading edges, to restore it on the same system,

cd /
tar xvf /dir1/file_name.tar

Do a "man tar" for more help.

Hope this helps.

Regds

[SHABU KHAN]

Sanman,

Since you have asked for the syntax of scp I assume you have ssh configured between the two boxes and root can ssh between these without password, in that case you don't need a tar ball you could do:

For example if you want everything under /apps to be copied over to the remote host and the remote host also has a similar file system (/apps) then

cd /apps (on current host)
scp -p -r * remotehost:/apps/

This should copy everything under /apps on current host over the network to remotehost. The status will be printed on stdout. (-p preservs all permissions and -r recursively copies all directories/subdirectories)

If you do not have ssh configured then I would use SK Chan's method (works well)
# cd /source_dir
# tar cvf - . | remsh target_machine '(cd /dest_dir; tar -xvf -)'

Hope this helps.

Thanks,
Shabu

[V. V. Ravi Kumar_1]

hi,

try this.

go to one step above the FS u want to tar. issue the following command

#tar cvf
of if u want to copy on to tape
#tar cvf /dev/rmt/0m

regds
ravi

[Francois Bariselle_3]

You can use fbackup command to backup all file system:

fbackup -0i / -f /dev/rmt/0mn

Frank