Issue Runnning on Ubuntu on Windows WSL #232

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adam · 2025-12-29T00:21:11+01:00

adam commented

2025-12-29 00:21:11 +01:00

Originally created by @midtur on GitHub (Aug 4, 2021).

Icannot seem to get the docker container to work. It exits every time I try to start it. I get and error something like:

Unable to init server: Could not connect: Connection refused

kvm version too old

qemu-system-x86_64: failed to initialize kvm: Inappropriate ioctl for device

qemu-system-x86_64: falling back to tcg

#####################################################################
Below is the issue template output
#####################################################################
Linux 5.10.16.3-microsoft-standard-WSL2 #1
NAME="Ubuntu"
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
Filesystem Size Used Avail Use% Mounted on
/dev/sdb 251G 9.6G 229G 5% /
QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.17)
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
libvirtd (libvirt) 6.0.0
total used free shared buff/cache available
Mem: 12Gi 1.9Gi 186Mi 406Mi 10Gi 9.9Gi
Swap: 4.0Gi 40Mi 4.0Gi
12
0
-rw-r--r-- 1 user user 0 Aug 4 13:07 /dev/kvm
total 8.0K
drwxr-xr-x 2 root root 4.0K Aug 4 01:01 .
drwxrwxrwt 4 root root 4.0K Aug 4 11:11 ..
asstast+ 1284 0.0 0.0 8168 740 pts/1 S+ 13:10 0:00 grep --color=auto dockerd
kvm:x:108:user
docker:x:119:user
libvirt:x:121:user
libvirt-qemu:x:64055:libvirt-qemu
libvirt-dnsmasq:x:122:

Originally created by @midtur on GitHub (Aug 4, 2021). Icannot seem to get the docker container to work. It exits every time I try to start it. I get and error something like: Unable to init server: Could not connect: Connection refused kvm version too old qemu-system-x86_64: failed to initialize kvm: Inappropriate ioctl for device qemu-system-x86_64: falling back to tcg ##################################################################### Below is the issue template output ##################################################################### Linux 5.10.16.3-microsoft-standard-WSL2 #1 NAME="Ubuntu" PRETTY_NAME="Ubuntu 20.04.2 LTS" VERSION_CODENAME=focal UBUNTU_CODENAME=focal Filesystem Size Used Avail Use% Mounted on /dev/sdb 251G 9.6G 229G 5% / QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.17) Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers libvirtd (libvirt) 6.0.0 total used free shared buff/cache available Mem: 12Gi 1.9Gi 186Mi 406Mi 10Gi 9.9Gi Swap: 4.0Gi 40Mi 4.0Gi 12 0 -rw-r--r-- 1 user user 0 Aug 4 13:07 /dev/kvm total 8.0K drwxr-xr-x 2 root root 4.0K Aug 4 01:01 . drwxrwxrwt 4 root root 4.0K Aug 4 11:11 .. asstast+ 1284 0.0 0.0 8168 740 pts/1 S+ 13:10 0:00 grep --color=auto dockerd kvm:x:108:user docker:x:119:user libvirt:x:121:user libvirt-qemu:x:64055:libvirt-qemu libvirt-dnsmasq:x:122:

adam commented

2025-12-29 00:21:12 +01:00

@allansrc commented on GitHub (Aug 4, 2021):

have you tried upgrade your KVM client?
if not, try it out. version 4.2.1 (Debian 1:4.2-3ubuntu6.17) should work fine.

@allansrc commented on GitHub (Aug 4, 2021): have you tried upgrade your KVM client? if not, try it out. version 4.2.1 (Debian 1:4.2-3ubuntu6.17) should work fine.

adam commented

2025-12-29 00:21:13 +01:00

@midtur commented on GitHub (Aug 16, 2021):

QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.17)
Hello, I have that version running already as stated in the diagnostic info above.

have you tried upgrade your KVM client?
if not, try it out. version 4.2.1 (Debian 1:4.2-3ubuntu6.17) should work fine.

@midtur commented on GitHub (Aug 16, 2021): **QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.17)** Hello, I have that version running already as stated in the diagnostic info above. > > > have you tried upgrade your KVM client? > if not, try it out. version 4.2.1 (Debian 1:4.2-3ubuntu6.17) should work fine.

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Reference: starred/Docker-OSX#232