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Re: File permissions and ownership changes between Unix and Cygwin
- From: surendar jeyadev <jeyadev3 at yahoo dot com>
- To: cygwin at cygwin dot com
- Date: Sat, 17 Dec 2005 17:55:27 -0800 (PST)
- Subject: Re: File permissions and ownership changes between Unix and Cygwin
--- Brian Dessent <email@example.com> wrote:
> surendar jeyadev wrote:
> As far as I understand it, the basic ISO9660 format
> does not have any
> fields to store file attributes such as owner or
> permissions. So on
> mounting such a disc, Windows and/or Cygwin will
> have to synthesize
> these fields, which is probably why they are not set
> as you want.
Ah! Never thought about the basic format .....
> To enable storing of these attributes you need to
> use the Rock Ridge
> extension. When creating your image you will have
> to make sure that you
> enable these extensions (-R, -r, etc.) Although
I always, even on an Unix box, use the -R -J options
when running mkisofs. The problem I mentioned occured
with these options. But (as you say below) I need to
explore the -r option, which I have not used so far.
> from the man page it
> looks like the author may be somewhat biased against
Ah!! That is putting it mildly. Very mildly. (But then
again I am probably in that camp .... though,
not so extreme).
> When used on Win32, the
> execute bit is set on
> all files. This is a result of the
> lack of file permis-
> sions on Win32 and the Cygwin
> POSIX emulation layer.
> See also -uid -gid, -dir-mode,
> -file-mode and
I think that my answers will lie in these other
I have not bothered with them so far.
> I'm not sure what "This is a result of the lack of
> file permissions on
> Win32 and the Cygwin POSIX emulation layer" but it
> seems like some
> pretty thick ignorance, since that's the entire
> point of Cygwin.
I will leave you to spar with Joerg! I have my scars!!
> You should post your question on the cdrtools list
> or forum, since this
> is not a cygwin package.
I will try to find one .... Don't think that one
Thanks for the quick response.
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