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I am logged in as root at the command line prompt. I have this new 4TB Western Digital My Book Studio USB2.0/3.0 external hard drive which I intend to use as backup storage. I tried plugging it in but this is what I get:

[325053.885636] sd 10:0:0:0: [sdg] No Caching mode page present
[325053.887454] sd 10:0:0:0: [sdg] Assuming drive cache: write through
[325053.894273] sd 10:0:0:0: [sdg] No Caching mode page present
[325053.896423] sd 10:0:0:0: [sdg] Assuming drive cache: write through
[325053.953886] sd 10:0:0:0: [sdg] No Caching mode page present
[325053.955547] sd 10:0:0:0: [sdg] Assuming drive cache: write through
_

It remained stuck there for more than 15 min. So I pressed CTRL+C to abort. sdg shows up fine in lsblk with two partitions sdg1 (200M) and sdg2 (1.7T) and does not appear to be mounted, and the USB device appears in lsusb, so it's connected and the system knows it. fdisk -l gives me this:

Disk /dev/sdg: 4000.8 GB, 4000752599040 bytes
255 heads, 63 sectors/track, 486397 cylinders, total 7813969920 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

Device    Boot    Start         End      Blocks    Id    System
/dev/sdg1             1  4294967288  2147483644    ee    GPT
Partition 1 does not start on physical sector boundary.

I have two questions:

(1) Is it OK for me to proceed with ext3 formatting and manual mounting?

(2) Why did the system hang after I connected the external drive and what is the problem with the physical sector boundary?

Just wanting to make sure I'm not missing out on anything important, and taking the opportunity to learn.

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closed as off-topic by Jorge Castro, Warren Hill, BuZZ-dEE, Richard, Avinash Raj Mar 15 at 8:46

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – Jorge Castro, Warren Hill, BuZZ-dEE, Richard, Avinash Raj
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If you are in a virtual console the above thing is not an error, is a log. Have you tried to simply press <return>? In the VCs the messages and the bash prompt intermingle... –  Rmano Mar 14 at 16:27