How to fix corrupted ploop
Stop the container Mount the container’s ploop image.
cd /vz/private/CTID
check fdisk:
fdisk -l root.hdd/root.hdd
Mount:
ploop mount root.hdd/DiskDescriptor.xml
e2fsck /dev/ploop28980
mke2fs /dev/ploop28980
e2fsck -b 32768 /dev/ploop28980
Run fdisk -l for the ploop device reported by the previous command.