handbook:
Code Listing 8: List all available stages
# ls /mnt/cdrom/stages


If the system replies with an error, you may need to mount the CD-ROM first: 

Code Listing 9: Mounting the CD-ROM
# ls /mnt/cdrom/stages
ls: /mnt/cdrom/stages: No such file or directory
# mount /dev/cdroms/cdrom0 /mnt/cdrom
# ls /mnt/cdrom/stages

reality:
# ls /mnt/cdrom/stages
ls: /mnt/cdrom/stages: No such file or directory
livecd / # mount /dev/cdroms/cdrom0 /mnt/cdrom
mount: special device /dev/cdroms/cdrom0 does not exist
livecd / # mount /dev/hdc /mnt/cdrom
mount: block device /dev/hdc is write-protected, mounting read-only
mount: /dev/hdc already mounted or /mnt/cdrom busy
mount: according to mtab, /dev/hdc is already mounted on /mnt/cdrom
# ls /mnt/cdrom/stages
ls: /mnt/cdrom/stages: No such file or directory