dtype in linux?

jaa1180 · 10-23-2003, 10:13 AM

In unix there is a command 'dtype' to find the disk type. Is there something similar in linux?

RolledOat · 10-23-2003, 11:01 AM

http://www.linuxquestions.org/questi...hreadid=107574
http://www.linuxquestions.org/questi...hreadid=107571

If you post this same question in another 4 threads, I am sure you will get your answer.

(Sorry for the light sarcasm, but expect worse...)

man hdparm

RO

Example:
hdparm -i /dev/hdc
/dev/hdc:

Model=GCR-8481B, FwRev=1.06, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no

or
hdparm -I /dev/hdc

ATAPI CD-ROM, with removable media
Model Number: GCR-8481B
Serial Number:
Firmware Revision: 1.06
Standards:
Used: ATAPI for CD-ROMs, SFF-8020i, r2.5
Supported: CD-ROM ATAPI-1
Configuration:
DRQ response: 50us.
Packet size: 12 bytes
Capabilities:
LBA, IORDY(can be disabled)
DMA: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns

jaa1180 · 10-23-2003, 11:46 AM

I know... I expected some one to notice but I needed an answer.
Thanks.
MMM... is there another command with less info...maybe like 'file' it just tells you the file type?

tcaptain · 10-23-2003, 12:04 PM

Everyone who asks questions needs an answer...its not really an excuse to spam to board. Usually the people here are pretty good.

jaa1180 · 10-23-2003, 12:12 PM

Yes sir, you are correct tcaptain. I really was unsure where to put the thread and also the obvious. Do you happen to know the answer to the question?

tcaptain · 10-23-2003, 12:21 PM

no unfortunately I don't but I'm paying attention to the thread because I'd also like to know the answer

RolledOat · 10-23-2003, 12:33 PM

Didn't I answer it?

RO

misophist · 10-23-2003, 12:57 PM

RolledOat did answer the question. It looks like dtype is deprecated. Unix in a Nutshell doesn't list it as a Korn shell command. Bash, and Zsh don't support it. hdparm is a wonderful tool. Read the man page. Learn the options you want and forget the rest. Every user needs reference books. Try O'Reilly's Nutshell series.

jaa1180 · 10-23-2003, 01:14 PM

Well, rolledoat did but did not. dtype apparently is specific to SCO UNIX. I found the HTML version man page of it on SCO's site doing a google search. hdparm is for the HDD.... can it be used for floppys, CDroms and whatever else?
I think hdparm is just HDD.... here is description.....
hdparm is a Linux shell utility for viewing and manipulating various IDE drive and driver parameters. Most drives can benefit from improved performance using a command similar to "hdparm -qm8 -qu1 -qc1 -qd1 /dev/hda".

jaa1180 · 10-23-2003, 01:16 PM

well, here is a better description....
dtype -- determine disk type

Syntax
dtype [-s] device ...
Description
The dtype command determines the type of a disk and prints pertinent information on the standard output (unless the silent (-s) option is selected), then exits with a corresponding value (see below). When more than one argument is given for device, the exit value corresponds to the last argument.

You can use this for CD-Rom, floppy, or whatever.....
Ideas????

hw-tph · 10-23-2003, 03:46 PM

You could write a simple bash script and use tests to see if the supplied parameter (a device name) is a block device, character device...etc. Then just let the exit code tell you what kind it is. If that's what you're looking for....

Code:

#!/bin/bash
if [ -b "$1" ]
then
	echo "$1 is a block device."
	exit 10
elif [ -c "$1" ]
then
	echo "$1 is a character device."
	exit 11
fi

...or use case. In any case (pun intended!

) you could very easily create a little script using whatever utilities you wish - if it's a block device you could run hdparm on it...etc.

Håkan

jaa1180 · 10-23-2003, 04:22 PM

??? I can do a long listing and see if it is a block or character device.
I wanted to see the disk type... IE fat32, ext3, .........

misophist · 10-23-2003, 04:49 PM

Try 'cat /etc/fstab' or 'fdisk /dev/?' then.

hw-tph · 10-23-2003, 07:33 PM

Oh! Partition types, that's a whole different story. Well I don't have much of an idea for that...other than cat'ing fstab like misophist suggested, but that will only show the partition types for commonly mounted partitions.

Håkan