id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
16629	Virtual Box 5.1.18 corrupted vdi drives on Windows 10	JohnP123		"I recently upgraded to VirtualBox 5.1.18r114002 and started a few
Virtual Box Images which just worked fine under Virtual Box 5.0.32.
However, after a restart the guest's Linux file system got corrupted.
Too many multiply claimed blocks (fsock error and device no longer found).
I also notices slower performance. HDD on the host is SATA. The guest
uses a sata (AHCI) controller as well.

After digging around, I saw that there was a similar problem in 2012, so
I decided to use the IDE Controller on the guest instead of the SATA controller.
Corruption of file system no longer occurs. Problem fixed with a work-
around but still thought this bug should be reported as I lost a few
hours getting this to work."	defect	closed	virtual disk	VirtualBox 5.1.18	worksforme	corrupt, disk, fsck, multiply claimed block		Linux	Windows