Fedora builds not working on WSL (dnf / yum failing)

[fquinner]

Please fill out the below information:

• Microsoft Windows [Version 10.0.17134.228]

• What you're doing and what's happening: (Copy&paste specific commands and their output, or include screen shots)

After installing Fedora 28 using an image from WSL-Distribution-Switcher to generate a docker image using:

python get-prebuilt.py fedora:28

And creating a wsl installation using:

choco install lxrunoffline
refreshenv
LxRunOffline.exe install -n fedora28 -d "C:\Users\fquinn\AppData\Local\Packages\Fedora28_LxRunOfflineInstall" -f C:\Users\fquinn\SourceExternal\github\RoliSoft\WSL-Distribution-Switcher\rootfs_fedora_28.tar.gz -s

Attempting to run dnf / yum in these containers causes:

# yum install vim
error: db5 error(12) from dbenv->open: Cannot allocate memory
error: db5 error(22) from dbenv->close: Invalid argument
error: cannot open Packages index using db5 - Cannot allocate memory (12)
error: cannot open Packages database in /var/lib/rpm
Error: Error: rpmdb open failed

I tried clearing out the __db entries in the guest as well as matching the working ubuntu kernel settings but neither has worked. I also tried clearing down my PATH to ensure no interpreter conflicts and that made no difference.

• What's wrong / what should be happening instead:

I should be able to launch the package managers in the guest.

• Strace of the failing command, if applicable: (If some_command is failing, then run strace -o some_command.strace -f some_command some_args, and link the contents of some_command.strace in a gist here).

# ./strace -o ./dnf.install.vim.strace -f dnf install vim
error: db5 error(12) from dbenv->open: Cannot allocate memory
error: db5 error(22) from dbenv->close: Invalid argument
error: cannot open Packages index using db5 - Cannot allocate memory (12)
error: cannot open Packages database in /var/lib/rpm
Error: Error: rpmdb open failed

Generates output: https://gist.github.com/fquinner/85b5b5c589ef0b00543c3fe53cb6a2e0

[therealkenc]

Fedora 28 using an image from WSL-Distribution-Switcher

That's an excellent question to post in that product's forum since they supplied your image.

error: db5 error(22) from dbenv->close: Invalid argument

But saving you the trouble the EINVAL is #902 (message) #658 #3451 by roundabout way of #2852 #2871.

[fquinner]

@therealkenc thanks, see: DDoSolitary/LxRunOffline#46 it was already raised and they think it's wsl's problem and based on #902 it looks like it is.

With WSL-Distribution-Switcher its actually docker from what i understand that provides the binaries used. all that script does is fetch and assemble them, see: https://github.com/RoliSoft/WSL-Distribution-Switcher/blob/master/get-source.py