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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1873506 Title: ubuntu/focal64 fails to mount Vagrant shared folders To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/1873506/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs