OT: Re: lazy old guy asks question

[john doe <johndoe65534@mail.com>]

On 8/29/25 11:55 AM, mick.crane wrote:
> On 2025-08-29 02:05, Greg Wooledge wrote:
> > 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.
>
> I apologise for not being clear in my question I should know by now not 
> to post if "tired".
> For the purpose of backing up 3 ~200Gb disks, with Debian operating 
> systems on them, I wondered if I can put them all on one 1Tb disk and be 
> able to copy them back.
> Not really understanding how dd works wondered if a bootable disk can be 
> copied to a partition on another disk for the purpose of backup.
> Or if the disks should be copied to ISOs. I've not done that before.
>

Sometime the easyest way is to reinstall..

--
John Doe