restoring FC1 to *new* partition from tar archive

[Jeff Vian]

Luciano Miguel Ferreira Rocha wrote:

>On Sun, May 09, 2004 at 01:28:46AM -0400, Joe(theWordy)Philbrook wrote:
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>>>Running without -p and --numeric-owner could cause some problems:
>>>-p: preserves permissions. Without this, the permissions of extracted
>>>    files will be affected by the value of umask.
>>>--numeric-owner: if you had created the tar.gz under FC1 and extracted it
>>>under MDK, different values for same users in /etc/passwd could cause
>>>problems. As you made the tar and extracted it under FC1, you shouldn't
>>>worry about this one.
>>>      
>>>
>>I'm hoping you mean that as long as the source and destination
>>filesystems have an IDENTICAL /etc/password... I shouldn't worry?
>>    
>>
>
>That's right, but only for the --numeric-owner. Without -p, some files may
>be created without the proper permissions.
>
>Here's a way to check the permission of files installed in your system:
>rpm -qf $(rpm -V --nodeps --nomd5 --noscripts $(rpm -qa) | grep '^.M' |
>sed 's/.* //') | sort -u
>
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>>Actually I did use mdk to create the tar from an FC1 filesystem. And I
>>used mdk to restore it as a complete FC1 filesystem... I'm thinking the
>>problems would be if I tried to restore it TO the mdk filesystem. (I hope)
>>    
>>
>
>No, only if you tried to restore it _under_ a different system.
>
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I think you are confusing /restore/ with /use/.  
It can be /restored/ using any system. The ownership is numeric and does 
not change on a differnent system.
The user ids are a problem if /used/ on a system where the group and 
passwd files define different userids for the owners.

>Regards,
>Luciano Rocha
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