How to recover using a full backup?

[Volker Wysk]

Am Montag, 3. September 2018, 17:01:24 CEST schrieb Colin Watson:
> On Mon, Sep 03, 2018 at 05:39:22PM +0200, Volker Wysk wrote:
> > Am Montag, 3. September 2018, 10:33:20 CEST schrieb Colin Watson:
> > > You may want to make a backup of the disk's partition table structure,
> > > e.g. using sfdisk.  You can just leave this in a file that gets backed
> > > up along with the rest of the system.  Check that you have nothing in
> > > other partitions that you can't reconstruct.
> > 
> > What would one do with the disk's partition table structure..?
> 
> If you need to restore to a new disk, you're going to want to put some
> kind of partition table on it first.  It may not be identical to the old
> one, especially if the disk is a different size, but you'll probably at
> least want the old table as a reference unless it's extremely simple and
> memorable.

Okay. I use fdisk for my partitioning needs. "fdisk -l /dev/..." for instance.
 
> I normally work on the assumption that a restore may be happening in a
> somewhat stressful situation (failed hardware and you need to get the
> machine working again), and so it's a good idea to minimise the amount
> of thinking I need to do.

That's a sensible assumption. :-)

> > >   grub-install [possibly with suitable arguments]
> > 
> > This should be "grub-install /dev/sda".
> 
> Yes, though bear in mind that if you've booted from a USB stick then
> it's not entirely impossible that the USB stick will be /dev/sda.  I
> always check first in that sort of situation, e.g. using "udevadm info".

"lsblk" can also be used...


Cheers
Volker