proot VS termux-fedora

I suspect some component was upgraded (glib?) and it use some functions that are not handled well by proot. Report issue to https://github.com/termux/proot/issues in order to have chances get it solved for yourself and others with this "black screen" problem.

I needed to look at your comment for 10 minutes before I got what you mean. So you want containers that run on any POSIX operating systems?

You can do this with ptrace() which is in POSIX, but its going to be slow for i/o heavy applications. Unfortunately POSIX doesn't provide anything else (seccomp would already be a step up). See also proot[1], gVisor[2] and User Mode Linux[3] which all use ptrace().

[1] https://github.com/termux/proot

[2] https://gvisor.dev/docs/architecture_guide/platforms/#implem...

[3] https://www.kernel.org/doc/html/v5.9/virt/uml/user_mode_linu...

Documentation does not exist. Just like in best traditions of open source software typically maintained by one person. Look the proot source code instead. Here is the link to extension source code: https://github.com/termux/proot/blob/master/src/extension/link2symlink/link2symlink.c

You'll probably want to do that inside of a proot environment.

Now regarding proot: it can't have higher privileges than your Termux shell session, despite the user "root" which may possibly appear. It was told many times here on Reddit, Termux GitHub and even Wiki (https://wiki.termux.com/wiki/PRoot) that PRoot does not give extra privileges and root user is fake.

I understand the sentiment, but I disagree. From the last time I checked, the big compromise with GNU/Linux phones is still the lack of social media and messaging apps and appstore ecosystem. Android, with root, is every bit as much a computer as a Pinephone and Librem 5, but the opposite isn't true. Termux has PRoot, a user-space implementation of chroot allowing a full distro install. I personally don't have any problem depending on Google, I have a problem with things being locked away with no alternative. Given the option, I will happily accept the risks and void my warray to root.

https://wiki.termux.com/wiki/PRoot

Finally, if you had read the sarchile wiki then you probably understand at proot-distro is dramatically sucks. termux-fedora and sarchile itself does not have such issues like that (yes, hello xeffyr, I hope you behave well here, deleting my comments or spamming on our project are an obvious declaration for a war to sustaination of FOSS communities).