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Re: lazy old guy asks question



On Fri, Aug 29, 2025 at 00:52:24 +0100, mick.crane wrote:
> If I've got 3 200Gb disks that are working and one 1 Tb disk and want to be
> able to copy and replace the 3 disks.

OK.

> Can I dd copy them to .isos on the 1 Tb disk then put them back on other
> disks so they boot?


Ah, you mean one of them is your OS disk, and that you want to remove that
OS disk and put in a new OS disk.

> Copy them to 3 partitions on the 1 Tb disk and dd an individual partition to
> another disk and have it boot?

What I would recommend is that you install Debian on the new 1 TB disk,
nice and clean, and leave a lot of space for your data.  Bring the
system down and add the old disks, and then boot Debian from the new
disk.  Find and mount each of the old disks, and copy the data from them,
using rsync.  Once all the data have been copied to the new disk,
unmount all the old disks, shut down, remove the old disks, then
boot back into the new Debian instance again.


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