Installer(s) Thread

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Noel•3/10/25, 12:29 AM

@Zeglius @tulip @jade @Niklas

@antheas I would like to see if we can hack on getting a live ISO installer up and running. I know we are mostly targeting bluefin LTS for now as a proof of concept, but I definitely think it would be good to get the Fyra Labs folks involved since they are the maintainers of Katsu and we could investigate using ReadyMade as a way to deploy the actual image onto the disk.

https://github.com/Zeglius/bootc-livecd-katsu

@Zeglius I’ll take some time to look at the katsu documentation, but when you have some time, I would be curious to understand how this works a bit better. No pressure on anyone, just trying to brain dump while I’m on the plane.

Noel•3/10/25, 12:31 AM

@jade add anyone from the Frya Labs team to this thread so that we can have a more direct discussion.

neko•3/10/25, 12:47 AM

@thirtyseven, @Owen, @lea, @madomado

neko•3/10/25, 12:47 AM

we’re ready to help with whatever you need on katsu <3

Owen•3/10/25, 12:48 AM

Pretty sure there was some work/testing done with installing bootc images with readymade. Shouldn’t be hard

Zeglius•3/10/25, 12:48 AM

Right so what got in that repo probably collides a bit with the way katsu is normally used.

For what I have seen in their images repo, is a more traditional approach of building a root filesystem with dnf.

We're as in mine, I literally just dumped the container root filesystem with a script

neko•3/10/25, 12:48 AM

i noticed you had one config file yeah

lea•3/10/25, 12:50 AM

we could add functionality to import a rootfs from an OCI root in Katsu maybe

madomado•3/10/25, 12:58 AM

technically you can expand it yourself before running katsu

Noel•3/10/25, 1:07 AM

One of the main things we want to avoid is having the image be on there twice. It's why our current ISOs are so dang big.

NNoel One of the main things we want to avoid is having the image be on there twice. I...

tulip•3/10/25, 1:08 AM

afaik composefs can mount an OCI archive

Noel•3/10/25, 1:08 AM

Offline deployment would still be best, if we can somehow make that happen.

NNoel Offline deployment would still be best, if we can somehow make that happen.

tulip•3/10/25, 1:08 AM

we'll just need some initramfs magic

Ttulip afaik composefs can mount an OCI archive

Noel•3/10/25, 1:08 AM

Composefs still isn't in the upstream images is it?

NNoel Composefs still isn't in the upstream images is it?

tulip•3/10/25, 1:09 AM

its on centos-bootc

tulip•3/10/25, 1:09 AM

using it right now

tulip•3/10/25, 1:09 AM

tulip•3/10/25, 1:09 AM

/sysroot/ostree/repo/objects

/sysroot/ostree/repo/objects

as the datadir

Ttulip its on centos-bootc

Noel•3/10/25, 1:09 AM

Ahhh ok, so missing from fedora then?

tulip•3/10/25, 1:09 AM

yup

Noel•3/10/25, 1:10 AM

I know Timothee and friends are working hard on it, so I'm sure it will eventually be here.

tulip•3/10/25, 1:10 AM

actually i think

fedora-bootc

fedora-bootc

has it?

Noel•3/10/25, 1:10 AM

I'm not sure that Bazzite has composefs yet.

tulip•3/10/25, 1:11 AM

here are the composefs options on centos-bootc:

tulip•3/10/25, 1:11 AM

ro,relatime,seclabel,lowerdir+=/run/ostree/.private/cfsroot-lower,datadir+=/sysroot/ostree/repo/objects,redirect_dir=on,metacopy=on

ro,relatime,seclabel,lowerdir+=/run/ostree/.private/cfsroot-lower,datadir+=/sysroot/ostree/repo/objects,redirect_dir=on,metacopy=on

madomado•3/10/25, 1:14 AM

if you bind-mount the root to katsu/katsu-work/chroot it should theoretically work (tho it's untested because… well hidden "features")

tulip•3/10/25, 1:16 AM

we can avoid duplicate stuff if we use

rpm-ostree deploy

rpm-ostree deploy

for the installation

tulip•3/10/25, 1:16 AM

cuz then we can just have the

/sysroot/ostree

/sysroot/ostree

stuff

tulip•3/10/25, 1:16 AM

bootc install

bootc install

seems to not have host support...

tulip•3/10/25, 1:20 AM

we need to talk about this with colin actually im sure he'd have some insight to share

Ttulip we need to talk about this with colin actually im sure he'd have some insight to...

Noel•3/10/25, 1:22 AM

I can just add him to the thread.

NNoel I can just add him to the thread.

tulip•3/10/25, 1:22 AM

he doesnt use discord much

tulip•3/10/25, 1:22 AM

better way to reach him is to talk to him on matrix

tulip•3/10/25, 1:23 AM

fedora-bootc room on the fedora space

antheas•3/10/25, 8:44 AM

@Zeglius I looked at it again

antheas•3/10/25, 8:44 AM

You will need to use rpm-ostree to stage the / instead

antheas•3/10/25, 8:44 AM

The way you did it will not work for derived images and cause a delta

antheas•3/10/25, 8:44 AM

Then you will also need to use rpm-ostree to create the ostree store

antheas•3/10/25, 8:45 AM

Probably the way you'd do this is first deploy the ostree store with rpm-ostree, that will not dupe the image to container storage

antheas•3/10/25, 8:46 AM

Then stage the image via hard links and place ostree in there

antheas•3/10/25, 8:46 AM

Then chroot, put your installer stuff

antheas•3/10/25, 8:47 AM

And squashfs the whole thing

antheas•3/10/25, 10:01 AM

Looking at the installer stuff again

antheas•3/10/25, 10:01 AM

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