Regression on shared folders when deleting directories

[alexgit2k]

The changelog of VirtualBox 6.0.6 says: "Linux guests: shared folder performance and reliability improvements and missing features (bugs #17360, #819)". A regression of this change was fixed in VirtualBox 6.0.12: "Linux guests: unprivileged users unable to create files inside shared folders (bug #18737)"

However, VirtualBox 6.0.12 still has a regression with shared folders of the change in 6.0.6. It can be reproduced with Windows 10 as host and CentOS 7 as guest with /home/vboxsf as shared folder:

sudo rpm -i https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm http://rpms.remirepo.net/enterprise/remi-release-7.rpm
sudo yum -y install php73 git unzip
cd /home/vboxsf
curl -s https://getcomposer.org/installer | php73
php73 composer.phar require ocramius/package-versions -vvv

The error-message is:

Could not delete /home/vboxsf/vendor/ocramius/package-versions/src/PackageVersions:

It is working within another filesystem than vboxsf or with VirtualBox 6.0.4 and vboxsf.

See also ​https://github.com/Ocramius/PackageVersions/issues/107

[Frank Batschulat (Oracle)]

duplicate of:

Ticket #18776 Vagrant shared folders unable to install Package Management Plugins (Composer, PHP)

https://www.virtualbox.org/ticket/18776