grub corrupted after update

URGENT !!!

I can not boot after reboot -> GRUB ERROR calloc()

Is there a way to keep on working I must recover my computer URGENTLY !
!

i got oonly grub rescue and there nothing to do

I just thought during zypper update to do not update... I was right !!

it is urgent !!

symbol "grub calloc" not found

I can mount the partition with a rescue disk but grub2-mkconfig doesn't work
I got grub backups

But I Can't use them

That's 4 posts.

We get that it's a problem.

Somehow, grub was updated but incompletely reinstalled.

Do you use UEFI booting or BIOS/MBR booting?

i don't know
MBR i think I disabled UEFI on this computer

thank you very mutch I have datas to transfer before midnite :{

Do you have boot media?

The install iso for Leap 15.1 or for Leap 15.2 could work. You will need to boot from some recovery media to fix the problem.

I can't remember the boot partition I used for grub...

I'm trying to read the last grub.cfg file from teh system partition...