I have installed VirtualBox 6.1 on Kubuntu 20.04.2.
I have created a shared virtual machine among two different host users, following the @scottgus1's post in the thread viewtopic.php?f=7&t=102676.
Both of the host users belong to the voboxusers group, and I also added virtualbox udev rules as described in viewtopic.php?f=7&t=59462&start=15
Nevetheless a very strange behaviour still remains. When the host user A launch the vm USB devices are available but when the host user B launch the same vm no USB device have found.
User A is the first user on the linux host machine (ie UID:GID is 1000:1000), user B the second one.
No USB device found for one host user
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Re: No USB device found for one host user
That would be because user B has not installed the extension pack. That fact that you did so is recorded in the user information, it is not global.korda wrote:When the host user A launch the vm USB devices are available but when the host user B launch the same vm no USB device have found.
Re: No USB device found for one host user
Estension pack was installed from repository as superuser. How can I check what you said?mpack wrote:That would be because user B has not installed the extension pack. That fact that you did so is recorded in the user information, it is not global.korda wrote:When the host user A launch the vm USB devices are available but when the host user B launch the same vm no USB device have found.
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Re: No USB device found for one host user
Look at the user B VM log after a session. The presence or not of the extension pack is reported in the first few lines.
And just to be clear, I assume we are not talking about both users running at once.
And just to be clear, I assume we are not talking about both users running at once.
Re: No USB device found for one host user
Yep, the users don't use the same vm simultaneouslympack wrote:Look at the user B VM log after a session. The presence or not of the extension pack is reported in the first few lines.
And just to be clear, I assume we are not talking about both users running at once.
Here there are the log files... it seems to me that both the users have Extensions Pack already setted (but user B doesn't see any device)
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Re: No USB device found for one host user
Both logs show working Extension Pack, with apparently-working USB3 in the VM. I read topics, could have sworn rather recently, about Linux hosts not being able to see USB. Can't find them nor remember the solution. We'll need a Linux guru on this one.
Carefully go through USB basics and troubleshooting. If you finish all the steps 1-7 and cannot get your USB device into the guest OS, carefully post the outputs of the commands in step 8 as text in
Carefully go through USB basics and troubleshooting. If you finish all the steps 1-7 and cannot get your USB device into the guest OS, carefully post the outputs of the commands in step 8 as text in
Code: Select all
tags, not screenshots. Zip and post the logs step 8 call for, using the forum's Upload Attachment tab.
Re: No USB device found for one host user
scottgus1 wrote:Both logs show working Extension Pack, with apparently-working USB3 in the VM. I read topics, could have sworn rather recently, about Linux hosts not being able to see USB. Can't find them nor remember the solution. We'll need a Linux guru on this one.
Carefully go through USB basics and troubleshooting. If you finish all the steps 1-7 and cannot get your USB device into the guest OS, carefully post the outputs of the commands in step 8 as text inCode: Select all
tags, not screenshots. Zip and post the logs step 8 call for, using the forum's Upload Attachment tab.[/quote] Uhmm... such procedure seems challenging. I will follow step by step the instructions proposed in the next few days and I will feedback you soon.
Re: No USB device found for one host user
It seems that this issue has been solved without my any direct intervention. I have only run (generic) system updates on the linux host.
I am not sure to flag this topic as Resolved: I don't know how to solve it yet
I am not sure to flag this topic as Resolved: I don't know how to solve it yet
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Re: No USB device found for one host user
Gotta love those intermittent self-resolving problems! We can leave the topic open, no need to bother with it if the problem stays resolved. Glad you're up and running! (for now.... )