My problem is that manjaro doesn't boot. grub rescue shell opens when starting the machine but all the partitions are unknown. I have tried some solutions and booted into a live USB but it turned out that manjaro partition is indicated as unformatted (not ext4) and cannot be mounted.
HOW can I revive my partition and the grub?
I'll write how I ended up here for reference ...
I have a dual-boot system. manjaro is installed on a rather small partition. I tried to resize it using KDE patitionong tool into an unallocated space (to the right of manjaro partition). The process succeeded and every thing was OK until I rebooted. grub rescue opened and I never saw manjaro again. I can boot to windows manually though.