hard disk crash
linux r
linuxr at gmail.com
Wed Oct 27 18:27:52 UTC 2004
On Wed, 27 Oct 2004 17:51:06 +0100, James Wilkinson
<james at westexe.demon.co.uk> wrote:
> Emiliano Brunetti wrote:
> > I am running FC1 and one of my hdd crashed: i can't even mount it.
>
> "linux r" suggested:
> > 3. dd it to another removable device, preferably another (USB
> > external) hard drive so that you don't run into weird geometry issues
> > or other time consuming things.
> >
> Emiliano replied:
> > I never really used dd. After i copy the whole partition to another
> > hopefully healthy drive, can't i just zap everything away from the old
> > damaged drive and format it? I just wish i could save some of the data.
> >
> > Is this correct?
>
> Once you've made *sure* you've got everything you can.
>
> You should be in paranoia mode here. Your data may be there, or it may
> not. Keep as many copies as you can: the last thing you want to do is to
> mess up a command and lose your "good" copy.
>
> Incidentally, one of the easiest commands to mess up is dd: make sure
> you get the if= and the of= devices right. It's too common for someone
> to get one of these wrong (or put the of device against if= and vice
> versa), and copy over something they really wanted to keep.
>
> I wouldn't do anything to that hard drive until you're happy you've got
> everything into its new home and properly backed up.
>
> And I wouldn't fully trust it, even then.
>
> Hope this helps,
>
> James.
>
> --
> E-mail address: james | I suppose if one has to go mad, slowly is the way to
> @westexe.demon.co.uk | go. You wouldn't want to rush going mad, you might
> | miss some of the good bits.
> | -- Paul Tomblin
>
> --
>
>
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To make it faster, can you just do just _part_ of the directory tree
with dd? E.g., not do a 70 g partition of / when you can maybe scrap
your apps and just dd /home or something like that. Later you can
remount /home over your fresh install, or mount it in /tmp and cp over
what you need. I would think that you could get by a lot quicker that
way. Unless of course we are talking about a production box or
something like that. If you don't need to save log files, etc. then
this may be a way to cut down the territory considerably.
Marc
Wealth is the product of man's capacity to think.
Ayn Rand
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