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Re: [Xen-users] Something went wrong and now I can't load my domu operating system, please help if you can

  • To: xen-users@xxxxxxxxxxxxx
  • From: Alexandre Kouznetsov <alk@xxxxxxxxxx>
  • Date: Wed, 15 Jan 2014 10:10:03 -0600
  • Delivery-date: Wed, 15 Jan 2014 16:11:35 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>


El 14/01/14 09:35, robert jackson escribió:
Today I booted my domu like normal, but something went wrong. Instead of
my login screen loading I was in a terminal. To make matters worse my
filesystem was mounted read only. I did some research and found that I
could mount my filesystem as read/write by doing sudo -i and then mount
-o remount,rw /. This worked for me and I could then run startx again. I
made a mistake though. I think I must have misunderstood what I read,
because I thought to fix the problem I had to edit /etc/fstab and remove
errors=remount-ro. Big mistake. After I rebooted I had the same problem
with the filesystem being mounted read only, but now when I do mount -o
remount,rw / it doesn't work for me. Now it says Unrecognized mount
option "o" or missing value, mount: / not mounted or bad option. I don't
know what to do now. I don't know if I can boot a live CD to mess with
the files on the drive because it's not a real computer. This problem
isn't necessarily Xen related but Xen is complicating the matter. That's
why I'm asking here. Please help me if you can, I don't have any backups
and I'll be very disappointed if I can't fix this.

I'm afraid, the symptoms you describe suggests that your hard disk has some sort of damage, might be only logical, but may be physical.

If your data is valuable to you, I suggest to start thinking in a data recovery procedure. Since the data recovery is a delicate topic, it's a bad idea to try to solve it using remote advices, there is no room for mistakes. If you don't know what are you doing, better call a local specialist.

Although I can tell you what I would do (knowing what I'm doing):
Attach a a 2nd storage of the same or bigger size as the server's storage.
Boot into some Live Linux distribution (Knoppix or systemrescuecd are good options). Get access to the data (specifically in read only mode) and back it up to the 2nd storage. On first sign of physical error, re-evaluate the risks and call a data recovery specialist.


Alexandre Kouznetsov

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