Thank you for your explanation, all is fine.

Hmmm. Could you post the results of the following command...

It's rather unusual for a device to stop working in this manner by itself (software related,) so I'm wondering if there might be some other issue, such as a piece of hardware. Also, if you would, please run a S.M.A.R.T. test using this information and post a screenshot of the readout.

Yes, either by adding additional modules or swapping out (trading) the existing modules for ones that have a larger amount of memory. Please see an example here.

I'm not sure at this point, perhaps another member can comment. Maybe that's something I can research here after a while, Lord willing.

No, you should be able to keep your current install and be able to choose which one you log into at boot. However, I can't guarantee it will be a seamless process, problems may or may not occur.

Regards...

thank you and command:

lijian@ubuntu:~$ dmesg | grep -iC 3 "eth0"
[ 29.932202] alloc irq_desc for 27 on node -1
[ 29.932211] alloc kstat_irqs on node -1
[ 29.932245] atheros_eth 0000:06:00.0: irq 27 for MSI/MSI-X
[ 29.937165] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 29.989176] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 30.585205] /dev/vmmon[1029]: Module vmmon: registered with major=10 minor=165
[ 30.585237] /dev/vmmon[1029]: Initial HV check: anyNotCapable=0 anyUnlocked=0 anyEnabled=1 anyDisabled=0
lijian@ubuntu:~$

for "so I'm wondering if there might be some other issue, such as a piece of hardware. Also, if you would, please run a S.M.A.R.T. test using this information and post a screenshot of the readout.":

yes, there are some other issues but they should not be related to cable connection to Internet because the cable connection is good when i change to another hard disk installed windows 7 (in this case,it seems ok for every aspects on this computer).

on my current ubuntu system, it always give alarm: one or more disks are failing.
but it can continue working as long as i turn on the computer. the attachment is the screen shot of the computer before i run self test.

Attached Thumbnails

 

Hi...

Let me make sure I understand this correctly. Are you dual booting both Ubuntu and Windows 7 from the same hard drive (the Toshiba MK3265GSX) or is each OS installed on a separate drive? The Toshiba drive appears to be failing and will need to be replaced.

The issue can easily be related as bad sectors effect the OS and other software on the drive and may be affecting the drivers for your ethernet device.

Just to be on the safe side, I would highly encourage you to back up everything you want to save to a USB thumb drive as quickly as possible!!

Regards...

REPLACE YOUR DISK!!!!!

You have thousands of bad sectors, according to that SMART attachment.
Certainly, take a full backup as a matter of urgency.

yes, it is dual system on the same disk and the windows system has booting problem. (by the way,i have another spare disk installed windowsn7. it run good for Internet,which means the adapter is ok)
but under ubuntu system, the alarm of disk arose almost at the beginning time i bought the computer. this has been for several years since then. the bad sectors developed very slow? can i install the card driver again on good sectors to fix the connection issue under ubuntu? and i do not know how to re-install the driver for cable connection to Internet. for "give "ATL1C" instead "ATL1E"", what can i do to find more information?

thank you. will you tell me how to do to avoid more bad sectors coming?

You cannot fix or repair the disk.
Replace the disk with a new one.
Consider whether do take a copy of your disk or whether to to do a re-install of the OS.

Keep an eye on the bad sector count - a few dozen is OK, but if it increases substantially over a few weeks, its probably time to scrap the disk.

Hi...

Ok, thank you. If you intend to use the spare hard drive on a regular basis, I would check with Microsoft to make sure you use of that copy of Windows 7 is legal for use on this particular system.

That's possible. However, to confirm that the hard drive is indeed failing, you should use another diagnostic utility. Seagate Seatools should be able to scan your drive, as it normally supports other brands of hard drives. Download the .iso file and then burn it as an image to a CD using a CD/DVD burning application. Please post the results.

I'm not sure how you would do that. If the drive is indeed failing, it wouldn't be worth the time anyway. It would be be best just to back up everything you want to keep and replace the drive as soon as possible.

Regards...

i don't mean to use the spare hard drive on a regular basis. that is just for test usage which tell me the computer's card adaptor is functional (in hardware aspect). the term "driver" i use indicate card's software which i hope to rebuild on the card adaptor. i don't mean hard disk driver. thank you a lot.

it is good reminder. thank you

Hi...

Thank you for the clarification.

I knew what you were referring to. However, as I mentioned, if the hard drive is failing (and accumulating bad sectors,) this would be a pointless endeavor. Please run the utility I mentioned above and post the results.

You're welcome

Regards...