Su Windows 7 funziona perfettamente, quindi escludo un problema hardware.
Ho già provato a creare una cartella /media/cdrom0, a modificare il file /etc/fstab e a dare il comando mount -a riavviando poi il sistema, come suggerito qui --> http://forum.ubuntu-it.org/viewtopic.php?f=9&t=428815, ma il problema non si è risolto.
Posto gli output richiesti nell'altro topic, nello stesso ordine (dmesg | grep CD-ROM, cdrecord -scanbus, wodim --devices, sudo lshw -C disk ed anche cat /etc/fstab ):
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[ 5.298402] scsi 4:0:0:0: CD-ROM MATSHITA DVD-RAM UJ862AS 1.06 PQ: 0 ANSI: 5
[ 5.301737] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 5.301946] sr 4:0:0:0: Attached scsi CD-ROM sr0Codice: Seleziona tutto
scsibus1:
1,0,0 100) 'ATA ' 'WDC WD3200BEVT-2' '11.0' Disk
1,1,0 101) *
1,2,0 102) *
1,3,0 103) *
1,4,0 104) *
1,5,0 105) *
1,6,0 106) *
1,7,0 107) *
scsibus4:
4,0,0 400) *
4,1,0 401) *
4,2,0 402) *
4,3,0 403) *
4,4,0 404) *
4,5,0 405) *
4,6,0 406) *
4,7,0 407) *
scsibus6:
6,0,0 600) 'Samsung ' 'S2 Portable' '' Disk
6,1,0 601) *
6,2,0 602) *
6,3,0 603) *
6,4,0 604) *
6,5,0 605) *
6,6,0 606) *
6,7,0 607) *
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wodim: Overview of accessible drives (0 found) :
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*-disk
description: ATA Disk
product: WDC WD3200BEVT-2
vendor: Western Digital
physical id: 0
bus info: scsi@1:0.0.0
logical name: /dev/sda
version: 11.0
serial: WD-WX90AA965934
size: 298GiB (320GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 signature=4fc488e0
*-cdrom
description: DVD-RAM writer
physical id: 1
bus info: scsi@4:0.0.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/dvdrw
logical name: /dev/sr0
capabilities: audio cd-r cd-rw dvd dvd-r dvd-ram
configuration: status=open
*-disk
description: SCSI Disk
physical id: 0.0.0
bus info: scsi@6:0.0.0
logical name: /dev/sdb
size: 931GiB (1TB)
capabilities: partitioned partitioned:dos
configuration: signature=68c9cbfc
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# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda6 during installation
UUID=998ac9e9-d8e7-4de1-9f68-54ff8750dbec / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=4cf1b3ed-53c1-4676-ba62-4ae450d4e51d none swap sw 0 0
/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
