Re: [Bug-tar] Re: AMTAR brokenness

[Sergey Poznyakoff]

Roger Leigh <address@hidden> wrote:

> I didn't realise it supported generating tar files.  For the cpio I
> have (GNU cpio version 2.5):
> 
>    ustar  The POSIX.1 tar format.  Also recognizes GNU tar archives,
>           which are similar but not identical.
> 
> How does this differ from "tar --format=posix".  Isn't the POSIX tar
> format for the current GNU tar now the same thing?

No, it isn't. The option --format=posix means POSIX.1-2001 format
(a.k.a. "pax format"), whereas ustar is POSIX.1-1988. The former
is atually a superset of the latter.

Regards,
Sergey