Patrick
October 30, 2025, 9:21am
45
At time of writing, on Debian trixie, VirtualBox is no longer installable packages.debian.org.
VirtualBox Installer (by Kicksecure, Whonix developers) has been modified to install VirtualBox from the Oracle (virtualbox.org) Debian repository instead.
1 Like
Patrick
November 9, 2025, 9:03am
46
[FAILED] Failed unmounting tmp.mount- Temporary Directory /tmp
During shutdown. VirtualBox bug report:
opened 04:15AM - 09 Nov 25 UTC
bug
### Version
7.2.4
### Host OS Type
Linux
### Host OS name + version
Kubuntu… 24.04 LTS
### Host Architecture
x86
### Guest OS Type
Linux
### Guest Architecture
x86
### Guest OS name + version
Debian 13 (trixie)
### Component
Guest Additions/Other
### What happened?
If a Debian Trixie guest with Guest Additions installed in it is shut down without the user manually stopping VBoxDRMClient first (i.e., by running `sudo pkill VBoxDRMClient`), an error message appears, `[FAILED] Failed unmounting tmp.mount - Temporary Directory /tmp.` appearing during a guest shutdown or reboot. I'm guessing VBoxDRMClient doesn't get stopped before the system attempts to unmount `/tmp` during shutdown, and I can see using `lsof` that VBoxDRMClient has open files in `/tmp`.
[VBox.log](https://github.com/user-attachments/files/23435914/VBox.log)
### How can we reproduce this?
1. Download the Debian 13 netinstaller from https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-13.1.0-amd64-netinst.iso
2. Create a new VM with the following settings:
* VM Name: d13-plain
* OS: Linux
* OS Distribution: Debian
* OS Version: Debian 13 Trixie (64-bit)
* Uncheck "Proceed with Unattended Installation"
* Set base memory to 2048 MB
* Set number of CPUs to 2
* Create a new 20 GB disk image file
* Ensure that the default graphics controller of VMSVGA is used
3. Install a basic Debian system with no desktop environment
4. In the guest, log into a TTY, then click Devices > Insert Guest Additions CD Image...
5. In the guest, `sudo mount /dev/sr0 /mnt; cd /mnt; sudo ./VBoxLinuxAdditions.run; sudo reboot`
6. In the guest, run `pgrep VBoxDRMClient` to ensure the service is running
7. In the guest, run `sudo reboot`
8. See that the guest reports `[FAILED] Failed unmounting tmp.mount - Temporary Directory /tmp.` during the shutdown process
9. In the guest, log into a TTY
10. In the guest, run `sudo pkill VBoxDRMClient`
11. In the guest, run `sudo reboot`
12. See that the guest does not report any issue with unmounting `/tmp`
### Did you upload *all* of your necessary log files, screenshots, etc.?
- [x] Yes, I've uploaded all pertinent files to this issue.
1 Like
It looks like the problem is the latest update, I reinstalled the system again and did everything new, but nothing helped. I would be grateful if someone tries to run any operating system in VirtualBox in the latest version of KickSecure with...
https://github.com/VirtualBox/virtualbox/issues/472
1 Like