Re: Move bookworm system from SSD to NVME

On 01/08/2024 12:31, Jesper wrote:

Then the system to copy is on the 2 last lines. Correct?
 

No.
In order to preserve the partition information *you must dd the raw disk*
dd id=/dev/sda od = /dev/nvme0n1 (or whatever)
That will create a two partition disk with the UUIDS of the partitions the same as is mentioned in the boot data: If they don't match it wont boot.
Viz:
df -h | grep ^/dev/
/dev/root        15G  1.5G   13G  11% /
/dev/mmcblk0p1  255M   51M  205M  20% /boot
These are the TWO partitions on a bootable PI device
In /boot which is DOS style formatted will be instructions on how to boot the main system
In the main bootable system there will be the fstab file which needs to tally with the partition ids.
more /etc/fstab:
proc            /proc           proc    defaults          0       0
PARTUUID=b8c9fbb7-01  /boot           vfat    defaults          0       2
PARTUUID=b8c9fbb7-02  /               ext4    defaults,noatime  0       1
In the BOOT partition is this file
  more *.txt
::::::::::::::
cmdline.txt
::::::::::::::
console=serial0,115200 console=tty1 root=PARTUUID=b8c9fbb7-02 rootfstype=ext4 fs
ck.repair=yes rootwait modules-load=dwc2,g_ether
Unless the bootloader finds that partition ID, it will *not load Linux*
AIUI the boot sequence is this:
Look for a DOS style VFAT partition on SD card, then USB, then NVME.
Look for a file named 'cmdline.txt' parse the root partition ID  and attempt to load a linux image from the boot  partition and have the kernel image mount the aforementioned PARTUUID as root partition.
If the PARTUUIDs don't match, the boot sequence hangs
So it is important to have the same PARTUUID in /boot/cmdline.txt, and in /etc/fstab, and in the partition label on the boot partition
The easy way to do this is not to clone the partitions, but the RAW DISK

And following drucks first suggestion I should run these 2 commands:
1: dd if=/dev/sda2 of=/dev/nvme0n1 bs=1M status=progress
and
2: dd if=/dev/sda1 of=/dev/nvme0n1 bs=1M status=progress
 replacing the name of the NVME to what I see when it is installed on the raspi.
 Best regards, and thank you for the help.

That wont work, but you wont destroy anything by trying.
--
Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read.
Groucho Marx