On Sun, Nov 13, 2016 at 08:54:52PM +0100, Thomas Schmitt wrote: >Hi, > >Anders Thulin wrote: >> Looking at debian-8.6.0-arm64-netinst.iso using ISOBuster. >> In the Primary Volume Descriptor file hierarchy, there's a file >> /FIRMWARE/FIRMWARE.DEB;1 (size 0). > >That's a symbolic link. > firmware-linux-free_3.3_all.deb -> > ../pool/main/f/firmware-free/firmware-linux-free_3.3_all.deb >Useful mostly with Rock Ridge. > >> In the Supplementary Volume Descriptor (Joliet), that file isn't there. >> The directory /firmware is present, but it is empty. > >Joliet (and plain ISO 9660) do not represent symbolic links. >Because Rock Ridge is an add-on to the ISO 9660 tree, there is an empty >file in that tree, of which the Rock Ridge attributes tell the story. > >I wonder why the Debian installation ISOs contain Joliet at all. >Are there use cases on MS-Windows for which one would want to unpack >files ?
For a very long time we cared about a range of Windows-based use cases too, e.g. people copying the files from a CD onto a Windows PC for network sharing etc. >Is it certain that all names are short enough for being represented >in Joliet without mangling ? (103 characters by -joliet-long.) We've been using -joliet-long for a long time, and I've complained a few times when we've had absurdly long filenames in the archive. To be honest, I could probably be persuaded to drop the Joliet support altogether as I'm not sure we need to care about it so much any more. >> So ... Debian CD production may have some kind of problem. > >If it is a problem, then of program xorriso, of which i am the developer. > >For now i see none, except the inavoidable confusion caused by empty or >missing file, where Rock Ridge mounted on a Unix-ly system shows a >working symbolic link. *nod* -- Steve McIntyre, Cambridge, UK. [email protected] Armed with "Valor": "Centurion" represents quality of Discipline, Honor, Integrity and Loyalty. Now you don't have to be a Caesar to concord the digital world while feeling safe and proud.
