[英]modprobe: ERROR: could not insert 'v4l2loopback': Unknown symbol in module, or unknown parameter (see dmesg)
I am trying to set up virtual v4l2 devices on an AWS EC2 instance.我正在尝试在 AWS EC2 实例上设置虚拟 v4l2 设备。 I did apt install for
v4l2loopback-dkms
and v4l2loopback-utils
.我为
v4l2loopback-dkms
和v4l2loopback-utils
做了 apt install 。
I get the following error when i try to set up devices with当我尝试设置设备时出现以下错误
sudo modprobe v4l2loopback device=8
modprobe: ERROR: could not insert 'v4l2loopback': Unknown symbol in module, or unknown parameter (see dmesg)
If I check dmesg
: [87243.295525] v4l2loopback: Unknown symbol video_ioctl2 (err -2)如果我检查
dmesg
: [87243.295525] v4l2loopback: Unknown symbol video_ioctl2 (err -2)
[87243.295553] v4l2loopback: Unknown symbol v4l2_ctrl_handler_init_class (err -2) [87243.295553] v4l2loopback:未知符号 v4l2_ctrl_handler_init_class (err -2)
[87243.295582] v4l2loopback: Unknown symbol video_devdata (err -2) [87243.295582] v4l2loopback:未知符号 video_devdata (err -2)
[87243.295605] v4l2loopback: Unknown symbol v4l2_ctrl_new_custom (err -2) [87243.295605] v4l2loopback:未知符号 v4l2_ctrl_new_custom (err -2)
[87243.295623] v4l2loopback: Unknown symbol video_unregister_device (err -2) [87243.295623] v4l2loopback:未知符号 video_unregister_device (err -2)
. . .
. .
.
uname -a
5.4.0-1055-aws #58~18.04.1-Ubuntu SMP Wed Jul 28 03:04:50 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Could you please help me on this?你能帮我解决这个问题吗?
Using AWS EC2 - ubuntu 20.04 LTS, I installed:使用 AWS EC2 - ubuntu 20.04 LTS,我安装了:
sudo apt -y install v4l2loopback-dkms v4l2loopback-utils linux-modules-extra-$(uname -r)
followed by:其次是:
sudo modprobe v4l2loopback
worked for me为我工作
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