Re: HELP! Re: How to fix I/O errors?

[Ric Moore <wayward4now@gmail.com>]

On 02/08/2017 04:38 PM, Marc Shapiro wrote:
> On 02/08/2017 01:26 PM, Ric Moore wrote:
> > On 02/08/2017 02:37 AM, Marc Shapiro wrote:
> > > How it went is not well.  I tested the new drive with SeagateTools and
> > > it was fine.  Then I made a clonezilla live CD and booted from it.  It
> > > stopped on the first read error with a message saying to restart using
> > > the rescue option.  I did that.  After 5 hours it finished without
> > > mentioning any errors.
> > >
> > > I tried to boot to the old disk (since it was still wired that way).  I
> > > got dropped int a maintenance shell with fs errors in /dev/sda4 which is
> > > the physical volume for all my LVM logical volumes -- /usr, /var, /home
> > > and /temp.  It says to run fsck manually.
> > >
> > > I decided to try the new drive, so I changed the cables and re-booted.
> > >
> > > Maintenance shell, again.
> > >
> > > / mounted clean
> > >
> > > lvm started
> > >
> > > /home fs has errors run fsck (at this point, I'm afraid to try it)
> > >
> > > /var, /usr, and /tmp all say that the superblock can not be read, or is
> > > invalid.  Try running
> > >
> > > e2fsck -b 8193 <device>
> > > or
> > > e2fsck -b 32768 <device>
> > >
> > > Which do I use?
> > >
> > > How did trying to clone the disk nake such a mess of BOTH disks?
> >
> >
> > You cloned a mess, you got a perfect copy. I'd do a clean install to
> > the new drive, after formatting the entire drive. Once you boot into
> > that drive, mount the old drive. It should show up in /media/<username>
> > Then copy the directories of personal stuff you want to keep to a new
> > location on the new drive. I use cp -raf <source directory>
> > <destination> and everything, including sub-directories, file
> > ownership and file permissions are preserved. If a file is clunky, it
> > won't copy it and should proceed.
> >
> > Next, if you are in your office, observe if the window is open. If
> > yes, throw the old drive out of it. :) Ric
> Ric,
>
>
> As soon as I finished my last post (above) I realized that what you
> suggest is exactly what I should have done in the first place.  Why I
> did not realize that earlier (and save myself a lot of headaches) I do
> not know.  The system is now booting to the old drive, just as it did
> before.  I think it just needed a good night's sleep.  I know that I did.
>
> My next steps are:
>
>     Format new drive
>
>     Install fresh on new drive
>
>     Mount and copy /home from old drive to new drive

Careful there, I would not copy any of the /home/username/dot-files or 
dot directories over, except like .mozilla and .thunderbird, so you 
don't carry over some old and crufty setting that might have been 
problematic. To spare you nightmares like this one, I use the /opt 
directory on a separate partition for all of my personal data.
So, I use /opt/ric/Documents and in my brand-new /home/ric directory I 
delete the newly created Documents directory and then link (ln -s 
/opt/ric/Documents Documents) and do the same with the other familiar 
home directories like Videos, Music, Downloads, everything except 
Desktop. If something goes ape, systemk-wise, you can do a fresh install 
of / (root) directory and leave /opt alone. I've done this since the old 
Caldera days. Nary a burp in the barrel! Ric



--
My father, Victor Moore (Vic) used to say:
"There are two Great Sins in the world...
..the Sin of Ignorance, and the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.
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