﻿id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
17360,Cannot mount loop device from within shared folder on 5.2.x -> fixed in 6.0.6,thurask,,"Host: Windows 10 Enterprise v1709 AMD64

Guest: Xubuntu 17.10 AMD64

On 5.2.2 r119230 and 5.2.3 r119552, attempting to mount an EXT4 partition image on the Linux guest stored in a shared folder on the Windows host fails with ""mount: can't read superblock on /dev/loop0"". 5.1.30 did not have this issue as far as I can remember.

With a new and up-to-date Xubuntu VM and Guest Additions installed:


{{{
$ cd /media/sf_SharedFolder
$ dd if=/dev/zero of=test.img bs=4k count=60000
$ sudo mkfs.ext4 test.img
$ mkdir testout
$ sudo mount -o loop test.img testout/
""mount: /media/sf_SharedFolder/testout: can't read superblock on /dev/loop0""
}}}


Doing the same thing on a folder inside the VM storage (like ~) correctly mounts the EXT4 image. The shared folder can be read from and written from within the VM as long as there's no loop mounting.",defect,closed,shared folders,VirtualBox 5.2.0,fixed,"shared, folder",,Linux,Windows
