@akdev did you ever find a decent workaround for ld being missing? I'm trying to put rust/cargo on a

@akdev did you ever find a decent workaround for ld being missing? I'm trying to put rust/cargo on an image and running into the ld /etc/alternatives thing again

akdev•6/1/23, 1:35 PM

You could create the correct links on first boot

akdev•6/1/23, 1:35 PM

Or inside the container create the link but remove everything after you use it

j0rgeOP•6/1/23, 3:53 PM

there's no fixing this in a containerfile is there?

Jj0rge @akdev did you ever find a decent workaround for ld being missing? I'm trying to...

Bigpod•6/1/23, 4:59 PM

i just have a distroboxes/containers for all languages

Jj0rge there's no fixing this in a containerfile is there?

dreamyuki•6/1/23, 5:02 PM

alternatives cannot create symlinks on its own during a container build

RUN ln -s /usr/bin/ld.bfd /etc/alternatives/ld && ln -s /etc/alternatives/ld /usr/bin/ld
Nvidia image have this workaround i think

j0rgeOP•6/1/23, 6:43 PM

found it, oh neat!

np2•6/1/23, 6:56 PM

Will there ever be a day where ublue starts from scratch images instead of the ones from

quay.io/fedora-ostree-desktops

quay.io/fedora-ostree-desktops

j0rgeOP•6/1/23, 6:59 PM

the plan is to rebase to

quay.io/fedora

quay.io/fedora

when those images are ready

Nnp2 Will there ever be a day where ublue starts from scratch images instead of the o...

Bigpod•6/1/23, 7:15 PM

It realy doesnt make sense at this point to build everything from scratch ourself as the point is for us to build uppon what fedora image based distros provide, there would also be not much of a benefit to us going from scratch

j0rgeOP•6/1/23, 7:23 PM

https://github.com/ublue-os/bluefin/pull/254/files

j0rgeOP•6/1/23, 7:24 PM

any ideas here? The nvidia images have the right symlink and I'm trying to add it to all my images just not only the nvidia one, I thought a -f would do it

j0rgeOP•6/1/23, 7:25 PM

oh I need an f in both places.

Ddreamyuki # alternatives cannot create symlinks on its own during a container build RUN ln...

j0rgeOP•6/1/23, 9:25 PM

thanks for this, it was the solution I needed that was hidden in plain sight.

Jj0rge thanks for this, it was the solution I needed that was hidden in plain sight. 😄

dreamyuki•6/1/23, 9:29 PM

Np
I remember something about ld with Nvidia image

Ddreamyuki # alternatives cannot create symlinks on its own during a container build RUN ln...

bsherman•6/1/23, 9:54 PM

and @j0rge
I think there is a better, generic solution for this since the lack of alternatives breaks many RPM installs, not just

ld

ld

...

before doing an

rpm-ostree install

rpm-ostree install

Containerfile

Containerfile

run

mkdir -p /var/lib/alternatives

mkdir -p /var/lib/alternatives

Example where i removed the manual symlink of

ld

ld

and used this instead:
https://github.com/ublue-os/akmods/blob/main/build-prep.sh#L17

j0rgeOP•6/1/23, 9:54 PM

wait, is this it?

Jj0rge wait, is this it?

bsherman•6/1/23, 9:55 PM

this allows successful install of any RPM with "post-install" operations that depend on alternatives, yah

j0rgeOP•6/1/23, 9:55 PM

I wonder if this is worth investigating project-wide? like in -main?

bsherman•6/1/23, 9:55 PM

i even suggested this on an upstream Fedora issue somewhere

j0rgeOP•6/1/23, 9:56 PM

what were the downsides?

Jj0rge I wonder if this is worth investigating project-wide? like in -main?

bsherman•6/1/23, 9:58 PM

yes, we should probably use it in our builds...

the downside is

ostree container commit

ostree container commit

doesn't like stuff in

/var

/var

so you have to clean it before doing the container commit... but we do that anyway...

so if you just want builds and RPM installs to work, the above is all you need...

but you CAN go a step further, copy the contents of /var/lib/alternatives out, ostree container commit, and then copy them back to /var/lib/alternatives if you want to try to preserve that stuff I do the latter in my image... but it's not crucial just nice to have the extra info IMHO

bsherman•6/1/23, 9:58 PM

it IS a hack, but it's required to install somethings, like the netcat RPM, it simply breaks without it

j0rgeOP•6/1/23, 9:59 PM

I think copying back and forth is a bit janky, but just creating the directory, I feel like ugly but working is better, especially since like, stuff like rust doesn't work otherwise.

j0rgeOP•6/1/23, 9:59 PM

and since it's an image when we clean it up later no fuss, no muss.

bsherman•6/1/23, 10:00 PM

This is my upstream issue: https://github.com/fedora-silverblue/issue-tracker/issues/430

Jj0rge there's no fixing this in a containerfile is there?

akdev•6/1/23, 10:00 PM

Create the link inside the containerfile and it should work

akdev•6/1/23, 10:00 PM

But you may need to remove the link

j0rgeOP•6/1/23, 10:00 PM

I have to drop by car off for service tonight but I'm down to work on this later if you want

Jj0rge I think copying back and forth is a bit janky, but just creating the directory, ...

bsherman•6/1/23, 10:00 PM

i'm fine with that. the main goal is to cleanly do installs, not preserve the alternatives data

Aakdev Create the link inside the containerfile and it should work

j0rgeOP•6/1/23, 10:00 PM

yeah I just did it in an sh file like how nvidia did it

j0rgeOP•6/1/23, 10:01 PM

but if we can skip this whole thing entirely by making an empty dir .... (showerthinking)

akdev•6/1/23, 10:01 PM

mkdir /etc/alternatives may work

bsherman•6/1/23, 10:02 PM

i'm nursing a headache, just got up from a nap, and not validating my statements, but i'm pretty confident (hence my link from an issue posted a few months ago)

akdev•6/1/23, 10:02 PM

Actually there’s probably no harm in doing that

akdev•6/1/23, 10:02 PM

before ostree would fail if there was data in /etc

akdev•6/1/23, 10:02 PM

But now it will just clean up

Aakdev mkdir /etc/alternatives may work

bsherman•6/1/23, 10:02 PM

this also doesn't hurt anythign, but it is not an alternative to mkdir /var/lib/alternatives ...

akdev•6/1/23, 10:03 PM

No, it is a workaround

Bbsherman i'm nursing a headache, just got up from a nap, and not validating my statements...

j0rgeOP•6/1/23, 10:03 PM

alright let's table it for later then, I have no problems making tonight video game night, heh

Bbsherman yes, we should probably use it in our builds... the downside is `ostree contain...

akdev•6/1/23, 10:04 PM

ostree container commit now cleans up /var iirc

akdev•6/1/23, 10:05 PM

unless I am making stuff up which is possible

bsherman•6/1/23, 10:05 PM

right, but i mean, I don't think mkdir /etc/alternatives is required, but mkdir /var/lib/alternatives is...

at least, i think

happy to be proven wrong with a better solution... i' just know it's been working

here's where i do it in my personal image (the "cleanup" bit, which assumes the