It seems that only root can access /dev/rcd0c when using tools such as
cdrdao, cdda2wav and cdparanoia, even when the user is in the operator
group:
$ cdparanoia -v -d /dev/rcd0c -B
Checking /dev/rcd0c for cdrom...
Testing /dev/rcd0c for SCSI interface
generic device: /dev/rcd0c
ioctl device: /dev/rcd0c
Could not open generic SCSI device /dev/rcd0c: Permission denied
Testing /dev/rcd0c for SCSI interface
uid=1000(lm) gid=1000(lm) groups=1000(lm), 0(wheel), 5(operator)
I get similar results with cdda2wav and cdrdao. Oddly enough, cdio
works just fine for this user. Even changing the permissions on
/dev/rcd0c to 644 didn't change anything and I still get errors
indicating that I have no permission, yet clearly the account is in
the correct group:
$ ls -l /dev/rcd0c
crw-r----- 1 root operator 15, 2 Dec 15 21:32 /dev/rcd0c
Is it possible to read /dev/rcd0c as a user in the operator group
using cdda2wav or other cdrtools? I would rather not have to use su
or sudo just to read a CD. And I see nothing special about cdio (i.e.
no SUID) to make it work differently.
