You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2015-02-11 23:45:11
- jernst
- Member
- From: Silicon Valley
- Registered: 2014-03-04
- Posts: 290
- Website
Detect whether device is disk or sdcard
Is there a way, given some /dev/sdX, to tell whether the device refers to a "real" disk or something as brittle as a USB flash memory stick / sd card / that kind of thing?
I found /sys/dev/block/*/removable, which apparently is a boolean describing whether the device is removable, which is close, but it still wouldn't allow me to tell whether it is a USB disk drive, for example, or an SD Card.
Offline
#2 2015-02-11 23:47:02
- jasonwryan
- Anarchist
- From: .nz
- Registered: 2009-05-09
- Posts: 30,424
- Website
Re: Detect whether device is disk or sdcard
Offline
#3 2015-02-12 00:47:51
- jernst
- Member
- From: Silicon Valley
- Registered: 2014-03-04
- Posts: 290
- Website
Re: Detect whether device is disk or sdcard
Thanks jasonwryan: maybe that's the best we can do. The look-for-usb-in-path trick is cute, but I still can't tell usb hard drive from sd card.
Offline
#4 2015-02-12 01:45:48
- alphaniner
- Member
- From: Ancapistan
- Registered: 2010-07-12
- Posts: 2,810
Re: Detect whether device is disk or sdcard
Udev info is certainly your best bet. If that's not possible, maybe the SCSI subsystem* has enough info to uniquely identify the device.
* See the contents of /proc/scsi/scsi for an idea of the info it makes available.
But whether the Constitution really be one thing, or another, this much is certain - that it has either authorized such a government as we have had, or has been powerless to prevent it. In either case, it is unfit to exist.
-Lysander Spooner
Offline
Pages: 1