[ubuntu-za] Blown Disk

[Bill Cairns]

Thanks Wayne - I am afraid that nothing seems to work. fsck tries to access
the disk (sda1) but just comes back with an error that says that the disk
is unreadable. I have tried to follow the instructions from the link you
sent me - but I just don't get far enough.  I also tried the check option
under gparted and got exactly the same result. I think that I am going to
have to try and reformat the partition. At least I have managed to backup
all my files including the ones from last week.

I will sleep on it and try again tomorrow. (One of the advantages of being
retired ...)

Bill

On 15 February 2015 at 17:18, Wayne Abroue <plettpc at gmail.com> wrote:

> 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
>>>>
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>>>>
>>>>
>>>
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