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When initializing a container in --unshare-netns mode, we avoid mounting /run/systemd/resolve. This allows nsswitch to fallback to myhostname when resolving the container's hostname, fixing an issue where 'hostname -i' fails with 'Unknown host'. Fixes 89luca89#2079
balanza
self-requested a review
July 17, 2026 09:27
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Hi @kairosci, I've tried the patch on this machine and it's not working > cat /etc/os-release
PRETTY_NAME="Ubuntu 24.04.4 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.4 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo
> distrobox enter archlinux -- hostname -i
hostname: gethostbyname: Unknown host
2026/07/21 21:48:46 failed to execute enter command: failed to enter the container: error running the interactive command :exit status 1 |
Contributor
Author
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@balanza I don't know why, but the push didn't push everything even though I literally ran |
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Author
distrobox enter test-arch -- hostname -i 2>&1
test-arch
Starting container... [ OK ]
Installing basic packages... [ OK ]
Setting up devpts mounts... [ OK ]
Setting up read-only mounts... [ OK ]
Setting up read-write mounts... [ OK ]
Setting up host's sockets integration... [ OK ]
Setting up host's sockets integration... [ OK ]
Integrating host's themes, icons, fonts... [ OK ]
Setting up distrobox profile... [ OK ]
Setting up sudo... [ OK ]
Setting up user's group list... [ OK ]
Setting up existing user - shell... [ OK ]
Setting up existing user - groups... [ OK ]
Ensuring user's access... [ OK ]
Container Setup Complete!
192.168.1.88 |
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This PR solves solves the systemd-resolved socket from being mounted when the container uses an isolated network namespace.
Closes #2079