Restore from Mirror SD Card wrong slot size

My Raspberry PI 4 micro SD card seems to have got corrupted. I have a mirrored external card reader with an SD card in it which should hopefully fix this problem.

However the card is a full size SD card so does not fit in the slot! Yes I know I should have bought an adapter with a micro SD card but it’s too late now.

Does anyone know how to get the correct partitions across to a new micro card. The original micro is 16gb and the backup is 32gb, I have a new 16gb micro SD.

thanks in advance

clonezilla could be able to do this.

From document about advanced parameters:

If you are sure all the data from the image could fit the smaller disk, i.e. it won’t be written to the wrong disk space, you can check the option “-icds”.Warning! To select this option, you have to know what you are doing!.

I think your comment about knowing what you are doing is very apt! I am fine with windows but I really struggle with unix.

I have created a new openhabian install on a new 16gb sd card and that is running fine. I now have the mirrored backup sd card in the second card reader, I can see that the partition I need is sda2. How do I get this to overwrite the current install? Or can I just copy across certain files to get this running?

openhabian@openhabian:~ $ lsblk
sda           8:0    1 29.8G  0 disk
├─sda1        8:1    1  256M  0 part
├─sda2        8:2    1 14.6G  0 part
└─sda3        8:3    1 14.9G  0 part
mmcblk0     179:0    0 14.8G  0 disk
├─mmcblk0p1 179:1    0  256M  0 part /boot
└─mmcblk0p2 179:2    0 14.6G  0 part /
zram0       254:0    0    1G  0 disk [SWAP]
zram1       254:1    0  750M  0 disk /opt/zram/zram1
zram2       254:2    0    1G  0 disk /opt/zram/zram2