5 May
2010
5 May
'10
4:21 p.m.
Eric Blake wrote:
On 05/05/2010 01:31 PM, Jim Meyering wrote:
Can we provide the option to specify the device serial number so that it's really impossible to trash the wrong device?
Given that this is a good idea, next question is obviously how to get the serial number. One way seems to be via hdparm, e.g., hdparm -i /dev/sda
/dev/sda:
Model=ST3320620AS, FwRev=3.AAK, SerialNo=9QF6ET0H
Great for SCSI, not so great for USB sticks:
# hdparm -i /dev/sdb
/dev/sdb: HDIO_DRIVE_CMD(identify) failed: Invalid exchange HDIO_GET_IDENTITY failed: Invalid argument # echo $? 22
Using a device path in /dev/disk/by-id/ would make more sense than specifying /dev/sdX if you're concerned about hitting the wrong disk. -jim