unable to unzip directory

From: Sun Fire (starcat524@yahoo.com)
Date: Wed May 29 2002 - 21:55:23 EDT


Dear Sun Managers,

I encountered some problem while trying to unzip my
database application directory :

I'm using zip -r to do a recursive zip of my appl
directory.
# zip -r /dbdata/backup/proddata
/dbdata/oracle/proddata

During unzipping of the directory :

# unzip /dbdata/backup/proddata.zip

I encountered the following warning-error message

unzip proddata.zip
Archive: proddata.zip
End-of-central-directory signature not found. Either
this file is not
a zipfile, or it constitutes one disk of a multi-part
archive. In the
latter case the central directory and zipfile comment
will be found on
the last disk(s) of this archive.

unzip: cannot find zipfile directory in one of
proddata.zip or
        proddata.zip.zip, and cannot find
proddata.zip.ZIP, period.
        

My question is:

[1] What would be the possible causes to this?
    Is there any zip option / parameter I can specify
    so that it can return me a exit code whether the
    zip is successful done?

[2] The reason I'm doing this is to zip the directory
    before doing backup.
    By just doing the ufsdump/tar command without
    zipping the directory, it took me > 24 hrs to
    backup. Any good suggestion how can I speed up the
    backup process?
    
 
Thanks in advance.

Regards,
Andrew
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com
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