growisofs/mkisofs owner/permissions wrong

kornelix · #1 26th May 2006, 11:12 AM

I am using growisofs/mkisofs for file backup to DVD, and for the most part they work very well.

I have run into one problem that I don't understand and cannot find any relevant information: The -R option will result in data files being copied with correct owner and permissions. However, directories are always owned by root and have the permissions r-x r-x r-x.

Why the inconsistent treatment for data files and directories?
Is there any way around this?

daneel971 · #2 26th May 2006, 12:01 PM

I think 555 is the default for directories on read-only media; maybe you can gain finer control over that with -dir-mode/-file.mode options. If the user/group ownership is the issue, try playing with the -gid and -uid options.

kornelix · #3 26th May 2006, 01:51 PM

My understanding of the man pages (perhaps wrongly) is that these options allow setting ALL directory or file ownership or permissions to FIXED values from the command line, as in " -dir-mode 777"

For file backups, one would expect ownerships and permissions to be preserved. For data files, this is indeed the case. For directories, it is not.