[Bug]: termux_step_update_alternatives() has /dev/stderr: Permission denied inside termux-docker inside GitHub Actions #25377
Description
Problem description
Unfortunately, after:
building termux packages inside termux-docker inside GitHub Actions has stopped working, because of this error happening:
This error happens because GitHub Actions restricts direct /dev/stderr access to the root user, but in order for termux-docker to function properly, it has to be run as a non-root user.
What steps will reproduce the bug?
Minimal reproducible example code including GitHub Actions log:
owokitty/termux-on-gha@a7d3bf8
What is the expected behavior?
termux-docker working to build termux-packages packages inside of GitHub Actions, like previously
System information
/data/data/com.termux/files/usr/bin/getprop: 3: exec: /system/bin/getprop: not found
/data/data/com.termux/files/usr/bin/getprop: 3: exec: /system/bin/getprop: not found
/data/data/com.termux/files/usr/bin/getprop: 3: exec: /system/bin/getprop: not found
/data/data/com.termux/files/usr/bin/getprop: 3: exec: /system/bin/getprop: not found
/data/data/com.termux/files/usr/bin/getprop: 3: exec: /system/bin/getprop: not found
/data/data/com.termux/files/usr/bin/getprop: 3: exec: /system/bin/getprop: not found
/data/data/com.termux/files/usr/bin/getprop: 3: exec: /system/bin/getprop: not found
Termux Variables:
unsupported
Packages CPU architecture:
x86_64
Subscribed repositories:
# sources.list
deb https://packages-cf.termux.dev/apt/termux-main stable main
Updatable packages:
All packages up to date
termux-tools version:
1.45.0
Android version:
Kernel build information:
Linux 37ae260dec3a 6.11.0-1018-azure #18~24.04.1-Ubuntu SMP Sat Jun 28 04:46:03 UTC 2025 x86_64 Android
Device manufacturer:
Device model:
Supported ABIs:
SUPPORTED_ABIS:
SUPPORTED_32_BIT_ABIS:
SUPPORTED_64_BIT_ABIS:
LD Variables:
LD_LIBRARY_PATH=
LD_PRELOAD=/data/data/com.termux/files/usr/lib/libtermux-exec-ld-preload.so