Issue after restoring disk image on Rock64

Hello everybody!

I write on this topic because i'm searching for few weeks a solution with dd command to make a disk image backup, but I don't find a conclusive solution, so...

Firstly I send dd command.

Disque /dev/mmcblk0 : 29,7 GiB, 31914983424 octets, 62333952 secteurs
Unités : secteur de 1 × 512 = 512 octets
Taille de secteur (logique / physique) : 512 octets / 512 octets
taille d'E/S (minimale / optimale) : 512 octets / 512 octets
Type d'étiquette de disque : dos
Identifiant de disque : 0x53d4dbd7

Périphérique   Amorçage Début      Fin Secteurs Taille Id Type
/dev/mmcblk0p1          32768 10504191 10471424     5G 83 Linux


Disque /dev/sdc : 1,8 TiB, 2000398931968 octets, 3907029164 secteurs
Unités : secteur de 1 × 512 = 512 octets
Taille de secteur (logique / physique) : 512 octets / 512 octets
taille d'E/S (minimale / optimale) : 512 octets / 512 octets
Type d'étiquette de disque : dos
Identifiant de disque : 0xa1be3216

Périphérique Amorçage      Début        Fin   Secteurs Taille Id Type
/dev/sdc1                   2048 2149556223 2149554176     1T 83 Linux
/dev/sdc2             2858452992 3907029163 1048576172   500G  7 HPFS/NTFS/exFAT
/dev/sdc3             2149556224 2858452991  708896768   338G 83 Linux

Les entrées de la table de partitions ne sont pas dans l'ordre du disque.
root@ubuntu:~# dd if=/dev/mmcblk0 of=/media/ubuntu/59C7B06D5FB30054/backup_rock.img bs=4096 conv=notrunc,noerror
7791744+0 enregistrements lus
7791744+0 enregistrements écrits
31914983424 bytes (32 GB, 30 GiB) copied, 428,454 s, 74,5 MB/s

All seems to be good! The imaged is saved on my mounting point in /dev/sda2

But after that my SD can't boot like before...

I have the following message: Press Control-D to continue

I type my password, make a fdisk -l command (see photo)

I have new partition disks mmcblk0bootX

Moreover I succeed to make disk image just after installing armbian, then I install samba (with all dependencies) and everything go wrong after dd command...

However I make my image on other computer (ubuntu) with media unmounted... Which impact this software could cause on this system? I don't understand.

I try another tool Rsync. Impossible to copy all data SD card to another SD card same size.

When it try to copy some kernel element I had a NOK in red (this tool work perfectly on my old RPI2)

I spend a lot of time on my new rock64 and I would be save it for good (if it's possible) ^^

Thanks