Further to my previous comment #21 above, I have found a workaround to get the shared folders working again with the latest image. It appears that the problem is with the virtualbox-guest-utils package included in the image.
Here are the steps that I performed in order to get a virtualbox ubuntu/focal64 guest with shared folders working again:
vagrant halt
# With the guest powered off, in Virtualbox in the storage settings, add an IDE Optical drive. Select the Guest Additions CD image if already available.
vagrant up
# click on Device -> insert Guest Additions CD image (or select it, if available, when adding the optical drive)
Further to my previous comment #21 above, I have found a workaround to get the shared folders working again with the latest image. It appears that the problem is with the virtualbox- guest-utils package included in the image.
Here are the steps that I performed in order to get a virtualbox ubuntu/focal64 guest with shared folders working again:
Notes: /www.vagrantup. com/docs/ providers/ virtualbox/ configuration# gui-vs- headless
It is OK to use the latest "ubuntu/focal64" box version - this was tested on 20210803.0.0
In order to be able to Insert the Guest Additions CD image, make sure you have gui enabled in Vagrantfile as per: https:/
vagrant halt
# With the guest powered off, in Virtualbox in the storage settings, add an IDE Optical drive. Select the Guest Additions CD image if already available.
vagrant up
# click on Device -> insert Guest Additions CD image (or select it, if available, when adding the optical drive)
vagrant ssh # into guest machine
# then in guest machine... guest-utils en.ig.ma/ notebook/ 2012/virtualbox -guest- additions- on-ubuntu- server dditions. run
sudo apt-get remove virtualbox-
sudo apt update
sudo apt upgrade
# inspired by: http://
sudo apt-get install -y dkms build-essential
sudo mount /dev/cdrom /mnt
sudo /mnt/VBoxLinuxA
exit
# On host machine:
vagrant reload
# If all went well, the shared folders will now be working again. Disable gui in Vagrantfile if no longer needed
dmesg on guest now shows:
01:43: 34.944901 main Log opened 2021-08- 08T01:43: 34.944892000Z dditions- 6.1.22/ sbin/VBoxServic e
01:43: 34.945009 main Process ID: 899
01:43: 34.945010 main Package type: LINUX_64BITS_ GENERIC DetectPeekGetCa ncelSupport: Supported (#1) =0x8000000f g_fSfFeatures=0x1 g_uSfLastFuncti on=29 VERSION_ CODE=0x5047c)
[ 11.087117] vboxvideo: loading version 6.1.22 r144080
[ 11.131885] 01:43:34.944899 main VBoxService 6.1.22 r144080 (verbosity: 0) linux.amd64 (Apr 28 2021 18:43:39) release log
[ 11.131917] 01:43:34.944972 main OS Product: Linux
[ 11.131929] 01:43:34.944987 main OS Release: 5.4.0-80-generic
[ 11.131940] 01:43:34.944998 main OS Version: #90-Ubuntu SMP Fri Jul 9 22:49:44 UTC 2021
[ 11.131956] 01:43:34.945009 main Executable: /opt/VBoxGuestA
[ 11.133106] 01:43:34.946143 main 6.1.22 r144080 started. Verbose level = 0
[ 11.137611] 01:43:34.950642 main vbglR3GuestCtrl
[ 17.071954] vboxsf: g_fHostFeatures
[ 17.072174] *** VALIDATE vboxsf ***
[ 17.072181] vboxsf: Successfully loaded version 6.1.22 r144080
[ 17.072233] vboxsf: Successfully loaded version 6.1.22 r144080 on 5.4.0-80-generic SMP mod_unload modversions (LINUX_