[ubuntu-za] Blown Disk

[Bruce Pieterse]

On 15/02/2015 21:18, Bill Cairns wrote:
> 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
> <mailto: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
>     <mailto: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
>         <mailto: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 <mailto: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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Hi Bill,

Anything useful in dmesg (dmesg or dmesg | tail)?

-- 
All the best,

Bruce

FSF Member 10674 / The FSF is a charity with a worldwide mission to advance software freedom / Join the Free Software Foundation: http://www.fsf.org/register_form?referrer=10674

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