Generating locales (this might take a while)...
Generation complete.
grep: /root/cdrom/preseed/ubuntu.seed: No such file or directory
pwconv: failed to change the mode of /etc/passwd- to 0600
Using CD-ROM mount point /cdrom/
Identifying... [55b64853faa9657a847ab46ed8707058-2]
Scanning disc for index files...
Found 0 package indexes, 0 source indexes, 0 translation indexes and 0 signatures
E: Unable to locate any package files, perhaps this is not a Debian Disc or the wrong architecture?
E: No CD-ROM could be auto-detected or found using the default mount point.
You may try the --cdrom option to set the CD-ROM mount point.
See 'man apt-cdrom' for more information about the CD-ROM auto-detection and mount point.