A volte dando il comando dmesg leggo quanto segue(ho linux come avrete capito )
codice:
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in command packet -- (asc=0x24, ascq=0x00)
  The failed "Mode Sense 10" packet command was:
  "5a 00 30 00 00 00 00 00 02 00 00 00 "
  Error in command packet byte 2 bit 5
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in command packet -- (asc=0x24, ascq=0x00)
  The failed "Mode Sense 10" packet command was:
  "5a 00 30 00 00 00 00 00 08 00 00 00 "
  Error in command packet byte 2 bit 5
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in parameter list -- (asc=0x26, ascq=0x00)
  The failed "Mode Select 10" packet command was:
  "55 10 00 00 00 00 00 00 3c 00 00 00 "
  Error in command data byte 12
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in parameter list -- (asc=0x26, ascq=0x00)
  The failed "Mode Select 10" packet command was:
  "55 10 00 00 00 00 00 00 3c 00 00 00 "
  Error in command data byte 12
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in parameter list -- (asc=0x26, ascq=0x00)
  The failed "Mode Select 10" packet command was:
  "55 10 00 00 00 00 00 00 3c 00 00 00 "
  Error in command data byte 12
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in command packet -- (asc=0x24, ascq=0x00)
  The failed "Mode Sense 10" packet command was:
  "5a 00 30 00 00 00 00 00 02 00 00 00 "
  Error in command packet byte 2 bit 5
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in command packet -- (asc=0x24, ascq=0x00)
  The failed "Mode Sense 10" packet command was:
  "5a 00 30 00 00 00 00 00 08 00 00 00 "
  Error in command packet byte 2 bit 5
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in command packet -- (asc=0x24, ascq=0x00)
  The failed "Mode Sense 10" packet command was:
  "5a 00 30 00 00 00 00 00 02 00 00 00 "
  Error in command packet byte 2 bit 5
hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdc: packet command error: error=0x54
ATAPI device hdc:
  Error: Illegal request -- (Sense key=0x05)
  Invalid field in command packet -- (asc=0x24, ascq=0x00)
  The failed "Mode Sense 10" packet command was:
  "5a 00 30 00 00 00 00 00 08 00 00 00 "
  Error in command packet byte 2 bit 5
cosa significa??che problema c'è?? :master:

Grazie mille