Help setting up FEX-EMU on Fedora Rawhide on Snapdragon X Elite system

Ask Fedora
,
1

Hello, I am trying to run FEX-EMU on a Snapdragon X Elite laptop, the Yoga Slim 7x, in Fedora rawhide but running FEXBash with any command complains about libc missing:

/home/you/.fex-emu/RootFS/Fedora_40/usr/bin/uname: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory

glibc is already installed on my system.

I installed FEX-Emu by doing dnf install fex-emu which installed

fex-emu-filesystem-0:2410-1.fc42.noarch
fex-emu-0:2410-1.fc42.aarch64
fex-emu-rootfs-fedora-0:42-4.fc42.noarch

The rootfs image that automatically downloads doesnā€™t load at all: running FEXBash doesnā€™t do anything and it times out. So then I installed fex-emu-utils and used FEXRootFSFetcher to download a Fedora 40 EroFS as seen above and also a Ubuntu 24.04 EroFS and archlinux EroFS both of which have the same issue and thatā€™s where I am now. The same behavior also occurs when using a SquashFS image instead of EroFS. Previously I was testing an Ubuntu image on this system and FEX-Emu worked there.

2

Please report issues with rawhide directly to the developers at the mailing list test@lists.fedoraproject.org

Very few users on this list use rawhide and the developers seldom frequent this forum so they would not see the discussion here.

3

Got it. Do you have a guide on how to use a mailing list? Iā€™ve never used one before

4

This link should allow you to set up an account, then it is simply a mailing list that can be treated mostly similar to this forum but is dedicated to support / testing / development of rawhide (and branched + beta before release).
https://lists.fedoraproject.org/admin/lists/test.lists.fedoraproject.org/

1 Like
5

Well, the test list is for talking to the Quality team, yes, but not exactly for reporting bugs, those go to Bugzilla:

FEX-EMU is a very niche project, which very few people have experience with. If someone from test list (or here, I think the likelihood is about the same) can help out, great. Or just file the bug and hope that a Fedora packager has some time to look at it. (Since it worked on Ubuntu, this might not be an upstream issue - but you can try asking the upstream developers/in their support channels as well).

6

Can we please re-consider this advice?

The test@ list is run by the quality-team , and we consider Discourse a perfectly good place to also have those discussions, if anything we want to move towards using Discourse and retiring the mailing list at some point.

ā€œThe developersā€ do not necessarily read test@ , if anything they read devel@ , but this forum is equally supposed to be a viable place for development discussions and we shouldnā€™t by default redirect topics from here to a mailing list for that, either.

If there arenā€™t appropriate tags/topics/whatever in Discourse for this kind of thing, we should set those up, not redirect people to mailing lists, IMO.

Anyway, on to practical advice: @ngompa is involved in the FEX stuff, so tagging him, he should be able to help with this or find someone who can.

7

None of us actively read Discourse, so the best way to reach us is through the mailing lists.

I at least will be notified if thereā€™s a ping on Discourse.

8

Yeah, no developers are reading this at all. (I kid, I read things here and I think thereā€™s a number of other people who are ā€˜developersā€™ who do).

9

Sorry, I mean in the form of the ones working on the FEX change. @dcavalca and myself donā€™t frequent Discourse unless we actively need to.