LinuxQuestions.org - [SOLVED] how to see my hardisk when i connected in redhat linux

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how to see my hardisk when i connected in redhat linux

if i connected any pendrive or hardisk is not showing
how to scan it and display the hardisk or pendrives

"fdisk -l" will show all attached drives and their partition table. You need to run it as root.

Quote:

Originally Posted by suicidaleggroll (Post 4893631)

"fdisk -l" will show all attached drives and their partition table. You need to run it as root.

actuall i know that when i connected the disk is not recognized.
for example if i connected pendrive the image of pen drive is not showing like that

Does it show new device name in out put of "fdisk -l".
If it is there, then we can access it.

If it is not there then have you checked using another pen drive/disk?

If another pen drive is detected easily, your pen drive's LED is turned on or blink one it is attached?

Quote:

Originally Posted by pavi_kanetkar (Post 4894263)

Thanks for replying
my pendrive is ok in interview asked me that (if your device is not detected how you will detect(in your linux os) in command wise

The question is worded poorly in my opinion. The disk will always be detected to some degree (you should at least see some handshaking information in /var/log/messages), even if it's not recognized as a storage device or auto-mounted. The correct action to take depends on what happened when you plugged it in.

If it's not detected at all (like the question is asking) then there's probably a hardware failure somewhere in the mix (either the USB port, the USB cable, or the drive itself is busted) and there's not much you can do besides trying other ports, cables, or drives. That is assuming you know your USB drivers are working correctly in the OS.

a guess
the "if i connected any pendrive or hardisk is not showing "

is ( for RHEL 6.3 ) if Gnome2 is not Auto listing it in nautilus
but
it might not be auto mounting in /media ( might require clicking on the drive in nautilus first)

or
any of the above

the question is very ambiguous

Actually I'd expect to see handshaking msgs in /var/log/dmesg.

in RHE /var/log/messages should show the USB, in this case, New Device... and it should show as some type of mass storage device.

Code:

Feb 19 04:26:24 centos kernel: usb 1-2: new high speed USB device number 4 using ehci_hcd

Feb 19 04:26:24 centos kernel: usb 1-2: New USB device found, idVendor=154b, idProduct=0044

Feb 19 04:26:24 centos kernel: usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3

Feb 19 04:26:24 centos kernel: usb 1-2: Product: USB 2.0 FD

Feb 19 04:26:24 centos kernel: usb 1-2: Manufacturer: PNY Technologies

Feb 19 04:26:24 centos kernel: usb 1-2: SerialNumber: AAB71A8400000050

Feb 19 04:26:24 centos kernel: usb 1-2: configuration #1 chosen from 1 choice

Feb 19 04:26:24 centos kernel: scsi12 : SCSI emulation for USB Mass Storage devices

Feb 19 04:26:25 centos kernel: scsi 12:0:0:0: Direct-Access     PNY      USB 2.0 FD       8192 PQ: 0 ANSI: 4

Feb 19 04:26:25 centos kernel: sd 12:0:0:0: Attached scsi generic sg2 type 0

Feb 19 04:26:25 centos kernel: sd 12:0:0:0: [sdb] 15826944 512-byte logical blocks: (8.10 GB/7.54 GiB)

Feb 19 04:26:25 centos kernel: sd 12:0:0:0: [sdb] Write Protect is off

Feb 19 04:26:25 centos kernel: sd 12:0:0:0: [sdb] Assuming drive cache: write through

Feb 19 04:26:25 centos kernel: sd 12:0:0:0: [sdb] Assuming drive cache: write through

Feb 19 04:26:25 centos kernel: sdb: sdb1

Feb 19 04:26:25 centos kernel: sd 12:0:0:0: [sdb] Assuming drive cache: write through

Feb 19 04:26:25 centos kernel: sd 12:0:0:0: [sdb] Attached SCSI removable disk

im running CentOS 6.3, so should be same results for RHE6.3 that is the end of my /var/log/messages when I plug in a new flash drive, pen drive as the OP calls it. It is clearly marked as new USB device and also clearly marked as a USB mass storage device. it goes so far as to tell you what type of device it is.

This is the info the OP should be looking for.

Code:

# tail -f /var/log/messages

run that command, then plug in the flash drive. watch and see what happens.