10-22-2013
You would not see it in /sys/block, block devices are disks. I used my hard drive as an off-the-cuff example of how to get the major/minor numbers. It might be found under /sys/class/tty/. It is full of virtual terminals which you can ignore, but will have serial ports as well.
Lots of devices these days include a little hard drive thing along with the device. It might have device drivers on it or promotional software. Or it might be something else entirely, when you can see the hardware the way Linux does some things just act strange.
6 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
HI there. I am studying System administration right now and am stuck on a question that I have failed to find the answer for in my book.
The question is: Do device files need to be in the /dev directory and to they need to follow a naming convention?
My answer (so far) is that since the... (7 Replies)
Discussion started by: Carl1976
7 Replies
2. Android
I just upgraded to Android 2.2 from 2.1. The GPS issue that was troublesome in 2.1 seems to have been fixed. Some of web browsing seems faster, but it could just be my connection is better today ;) Flash works in some browsers but not very good and it is too slow for Flash apps designed for... (0 Replies)
Discussion started by: Neo
0 Replies
3. Red Hat
Hi All,
Could anyone please help to resolve the below problem.
I installed RHEL5.5 in my desktop.But when i try to activate the ethernet connection then it gives me the error.
I spent 2 days for the above and go through with several suggestion found by googling. But no luck.
... (0 Replies)
Discussion started by: Tanmoy
0 Replies
4. Android
I am looking for a way to run on top of the Linux kernel of an Android device. I want to use the existing configured Linux beneath Android rather than put a new Linux distribution onto a device.
The article "The Android boot process from power on" (sorry, forum won't let me paste the link)... (0 Replies)
Discussion started by: raoulney
0 Replies
5. HP-UX
Hi,
Unable to make tape backup, please help.
/opt/ignite/bin/make_tape_recovery -a /dev/rmt/?mn -I -v -m tar -x inc_entire=vg00
* Creating local directories for configuration files and archive.
======= 04/25/16 16:28:08 IST Started /opt/ignite/bin/make_tape_recovery.
(Mon... (4 Replies)
Discussion started by: anuragr
4 Replies
6. UNIX for Beginners Questions & Answers
this is worked "ANDROID NOUGAT" how can i use it for "ANDROID OREO"
-plz help me...
-------------------------------------------
echo " Ã-~-DEVICE ID CHANGINGÃ-~-"
sleep 2
echo "
"
COUNT=1
while
do
;
echo "settings put secure android_id " | tr -d '\n' > X1... (4 Replies)
Discussion started by: f4is4l
4 Replies
HD(4) Linux Programmer's Manual HD(4)
NAME
hd - MFM/IDE hard disk devices
DESCRIPTION
The hd* devices are block devices to access MFM/IDE hard disk drives in raw mode. The master drive on the primary IDE controller (major
device number 3) is hda; the slave drive is hdb. The master drive of the second controller (major device number 22) is hdc and the slave
hdd.
General IDE block device names have the form hdX, or hdXP, where X is a letter denoting the physical drive, and P is a number denoting the
partition on that physical drive. The first form, hdX, is used to address the whole drive. Partition numbers are assigned in the order
the partitions are discovered, and only nonempty, nonextended partitions get a number. However, partition numbers 1-4 are given to the
four partitions described in the MBR (the "primary" partitions), regardless of whether they are unused or extended. Thus, the first logi-
cal partition will be hdX5. Both DOS-type partitioning and BSD-disklabel partitioning are supported. You can have at most 63 partitions
on an IDE disk.
For example, /dev/hda refers to all of the first IDE drive in the system; and /dev/hdb3 refers to the third DOS "primary" partition on the
second one.
They are typically created by:
mknod -m 660 /dev/hda b 3 0
mknod -m 660 /dev/hda1 b 3 1
mknod -m 660 /dev/hda2 b 3 2
...
mknod -m 660 /dev/hda8 b 3 8
mknod -m 660 /dev/hdb b 3 64
mknod -m 660 /dev/hdb1 b 3 65
mknod -m 660 /dev/hdb2 b 3 66
...
mknod -m 660 /dev/hdb8 b 3 72
chown root:disk /dev/hd*
FILES
/dev/hd*
SEE ALSO
chown(1), mknod(1), sd(4), mount(8)
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 1992-12-17 HD(4)