Re: Question Re used CD-RW

[Todd Gruhn <tgruhn2%gmail.com@localhost>]

 How do I make the CD-RW  into ISO 9660 instead of UDF?

On Thu, Jan 23, 2025 at 3:01 PM Dave Huang <khym%azeotrope.org@localhost> wrote:
>
> On Thu, 23 Jan 2025, Todd Gruhn wrote:
> > Uhhhh, yah. But why doesnt 'mount -r -t cd9660 /dev/cd0a /cdrom'
> > work?
> >
> > Isnt  cd9660  a type of udf ? What am I not understanding?
>
> Not exactly... cd9660 is ISO 9660, which isn't the same as UDF. However,
> it's possible to make a hybrid CD that is both ISO 9660 and UDF. If it's a
> hybrid CD, both "mount -t cd9660" and "mount -t udf" will work. However,
> newfs_udf makes a UDF-only filesystem, so "mount -t cd9660" won't work on
> filesystems it creates.
>
> mkisofs can create a hybrid ISO 9660 and UDF filesystem, but I'm pretty
> sure you can't use commands like "cp" and "rm" to modify it like it was a
> regular read/write disk--it's more for write-once CD-Rs and DVD-Rs.
> --
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