On 2019-08-28 16:50, Ralph Corderoy wrote:
Hi Tim,
> > (current hard disk is 500gb - formating etc.) and I am looking at
> > fitting a 250gb ssd.
Disk /dev/sda: 500107862016B
$ units 500107862016B bytes
465 GiB + 780 MiB + 24 KiB
Sector size (logical/physical): 512B/4096B
Number Start End Size Type File
system Flags
1 1048576B 49217011711B 49215963136B primary ext4
Its end is well within the area of the new smaller SSD.
$ units -1 49217011711B bytes
45 GiB + 856 MiB + 1023 KiB + 1023 B
2 49217011712B 468647411711B 419430400000B primary ext4
And that covers most of the rust, starting from the end of sda1,
$ expr 468647411712 - 468647411711 - 1
0
and going nearly to the end, just before the swap.
$ units -1 468647411711B bytes
436 GiB + 472 MiB + 1023 KiB + 1023 B
3 468647411712B 500105249279B 31457837568B primary
linux-swap(v1)
If you're not dependent on that swap then you could delete that
partition before the transfer so it's less to do, creating a new one on
the SSD, if you think it's worthwhile.
df -k /dev/sda?*
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda1 47045404 5712048 38913852 13% /
/dev/sda2 402123024 23220796 358405844 7% /home
udev 3890100 0 3890100 0% /dev
Adding the amount used of sda2, /home, onto its starting point as a
rough guide doesn't get us far into a 250 GB SSD.
$ units -1 49217011712B+23220796KiB bytes
67 GiB + 1005 MiB + 572 KiB
So I'd
- Delete the swap partition unless the machine is crippled without
it.
- Boot from a recent live USB stick that offers gparted.
- Use gparted to shrink /home so its end is comfortably under a
250 GB SSD's limit.
Then the content you wish to copy will fit on the smaller destination.
How you do the copy comes down to personal preference a bit.
I'd dd(1), but you might be more use to something else?
--
Cheers, Ralph.
If I dd a partition on my existing spinny disk to an img and then
restore the img to the ssd, what happens to the UUID's of each
partition?
Do they remain the same or do I have to reset them and if so to what?
Change the entries in fstab to what the partition are when I setup the
partition on the ssd (in gparted)?
Regards
Tim H
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