I am also having error "Invalid argument" as shown in #19 comment.
Vagrant says: mount -t vboxsf -o uid=1000,gid=1000,_netdev dist /dist The error output from the command was: /sbin/mount.vboxsf: mounting failed with the error: Invalid argument dmesg says: [ 10.792892] vboxsf: g_fHostFeatures=0x8000000f g_fSfFeatures=0x1 g_uSfLastFunction=29 [ 10.792962] vboxsf: Successfully loaded version 6.1.16_Ubuntu [ 10.792987] vboxsf: Successfully loaded version 6.1.16_Ubuntu on 5.4.0-80-generic SMP mod_unload modversions (LINUX_VERSION_CODE=0x5047c) [ 10.807936] 19:53:39.226512 main VBoxService 6.1.22_Ubuntu r144080 (verbosity: 0) linux.amd64 (Jun 22 2021 07:15:58) release log 19:53:39.226514 main Log opened 2021-08-06T19:53:39.226504000Z [ 10.807994] 19:53:39.226603 main OS Product: Linux [ 10.808053] 19:53:39.226650 main OS Release: 5.4.0-80-generic [ 10.808126] 19:53:39.226749 main OS Version: #90-Ubuntu SMP Fri Jul 9 22:49:44 UTC 2021 [ 10.808160] 19:53:39.226778 main Executable: /usr/sbin/VBoxService 19:53:39.226779 main Process ID: 792 19:53:39.226779 main Package type: LINUX_64BITS_GENERIC (OSE) [ 10.819491] 19:53:39.238084 main 6.1.22_Ubuntu r144080 started. Verbose level = 0 [ 10.820412] 19:53:39.239016 main vbglR3GuestCtrlDetectPeekGetCancelSupport: Supported (#1) [ 16.552729] vboxsf: Invalid info signature: 0x75 0x69 0x64 0x3d! [ 16.552731] vbsf_read_super_aux err=-22 [ 16.574695] vboxsf: Invalid info signature: 0x75 0x69 0x64 0x3d! [ 16.574697] vbsf_read_super_aux err=-22 [ 21.608093] vboxsf: Invalid info signature: 0x75 0x69 0x64 0x3d! [ 21.608095] vbsf_read_super_aux err=-22 [ 26.638080] vboxsf: Invalid info signature: 0x75 0x69 0x64 0x3d! [ 26.638082] vbsf_read_super_aux err=-22 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1873506 Title: ubuntu/focal64 fails to mount Vagrant shared folders Status in cloud-images: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Eoan: Fix Released Status in linux source package in Focal: Fix Released Bug description: SRU Justification Impact: When our kernel packaging was updated to build the virtualbox guest packages by downloading the dkms package, the modules were accidentally moved to linux-modules-extra instead of linux-modules. This has caused the modules to go missing in our Vagrant images. Fix: Move the modules back to linux-modules. Test Case: Build the kernel packages and confirm that the vboxguest and vboxsf drivers are now in linux-modules rather than linux-modules- extra. Regression Potential: Since linux-modules is required, anyone who is using the vbox drivers will continue to have them after this change. Therefore the risk of regression is extremely low. --- Attempting to `vagrant up` using the `ubuntu/focal64` box fails to mount the `/vagrant` shared folder. `ubuntu/bionic64` works as expected. Here is the Vagrant error message: Vagrant was unable to mount VirtualBox shared folders. This is usually because the filesystem "vboxsf" is not available. This filesystem is made available via the VirtualBox Guest Additions and kernel module. Please verify that these guest additions are properly installed in the guest. This is not a bug in Vagrant and is usually caused by a faulty Vagrant box. For context, the command attempted was: mount -t vboxsf -o uid=1000,gid=1000 vagrant /vagrant The error output from the command was: : No such device To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/1873506/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp