Re: question
2003-01-30 17:08:25
man tar
<SNIP>
Function Modifiers
The characters below may be used in conjunction with the
letter that selects the desired function.
p Restore the named files to their original modes, and
ACLs if applicable, ignoring the present umask(1).
This is the default behavior if invoked as super-user
with the x function letter specified. If super-user,
SETUID and sticky information are also extracted, and
files are restored with their original owners and per-
missions, rather than owned by root. When this func-
tion modifier is used with the c function, ACLs are
created in the tarfile along with other information.
Errors will occur when a tarfile with ACLs is
extracted by previous versions of tar.
<SNIP>
also note
<SNIP>
o Ownership. Assign to extracted files the user and
group identifiers of the user running the program,
rather than those on tarfile. This is the default
behavior for users other than root. If the o function
modifier is not set and the user is root, the
extracted files will take on the group and user iden-
tifiers of the files on tarfile (see chown(1) for more
information). The o function modifier is only valid
with the x function.
<SNIP>
You will likely also need to run amrestore as root.
>I login as 'amanda' to run 'amdump' and 'amrestore'.
>The utility is GNUTAR.
>The command 'amrestore -p ...| tar xvf -' works, but the owner of restored
>files were changed
>to 'amanda'.
>How to prevent to change 'owner'?
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