[ubuntu-za] Blown Disk

[Wayne Abroue]

Firstly , Ypou need to boot with externalmedia, and unmount the drive.

Then go with /dev/sda  first, then follow up with /dev/sda1 /2 etc.

check out
https://linuxexpresso.wordpress.com/2010/03/31/repair-a-broken-ext4-superblock-in-ubuntu/

Wayne A

On Sun, Feb 15, 2015 at 4:54 PM, Bill Cairns <cairnsww at gmail.com> wrote:

> Hi Wayne,
>
> sudo fsck /dev/sda1
>
> gives:
> fsck from util-linux 2.20.1
> e2fsck 1.42.9 (4-Feb-2014)
> fsck.ext4: Attempt to read block from filesystem resulted in short read
> while trying to open /dev/sda1
> Could this be a zero-length partition?
>
> (I hope not!)
>
>
>
>
> On 15 February 2015 at 16:39, Wayne Abroue <plettpc at gmail.com> wrote:
>
>> Hi
>>
>> Doesnt sound like your disk is gone or needing a reinstall, just a bit of
>> reshuffling  and linux magic needed. HAve you tried
>>
>> sudo fsck /dev/***   the partition or drive.?
>>
>> Wayne A
>>
>>
>>
>> On Sun, Feb 15, 2015 at 4:18 PM, Bill Cairns <cairnsww at gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> It seems that the sudden power failures caused by load shedding has
>>> somehow caused some disk damage. When I tried to boot this morning, I got a
>>> grub message that it was trying to read / write beyond hda limits. I booted
>>> from the original  DVD, but when I try to look at the root drive where the
>>> OS is located I get "Unable to access 20 GB volume" and lots of error
>>> messages including "mount:wrong fs type, bad option, bad superblock on
>>> /dev/sda1.
>>>
>>> So it does not look good.
>>>
>>> Fortunately all my files are on another Home drive and I can access them
>>> - I also have full backup (although Murphy told me not to backup last week
>>> so I am missing some stuff ...)
>>>
>>> My first thought is to simply re-instal on the root drive while keeping
>>> my Home directory alone. But I thought that before I did that I would ask
>>> if there is perhaps something else I can try - and also ask whether my
>>> diagnosis is correct?
>>>
>>> Any comments or suggestions would be appreciated.
>>>
>>> (I am not sure that I have used the right terminology here - I hope that
>>> I have been clear enough that you can still understand).
>>>
>>> Bill
>>>
>>> --
>>> ubuntu-za mailing list
>>> ubuntu-za at lists.ubuntu.com
>>> https://lists.ubuntu.com/mailman/listinfo/ubuntu-za
>>>
>>>
>>
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