How to create your own ublue-os variant [step by step]

hey what's going on welcome to part two in ublue  OS and what I'm going to show you today is how   to create your own repo like I showed you in  the previous video at high level but now show   you from scratch how to do that how to generate  your own image based on the config files and the   template that's there and also how to rebase to  that new image and also how to make a change so   yeah basically this will be an in-depth video  but as you can hopefully see at the end of the   video it's not that complicated to do it. I have  my desktop here what I'll do is I'll completely   start from scratch so assume you have nothing so  I'm also going to assume one other thing and that   is that you already have a booted ublue OS variant  and that can be any where you have the bootc in   there so that is that is still a prerequisite  so that you should bootc status if you do this   of course provide your password that you at  least have this if you don't have this then it   doesn't have then it doesn't make sense for you  to follow along maybe there's another way uh to   have bootc but that's really out of the scope of  this video and if you're at this moment wondering   well what is this all about then make sure to  check part one I'll have it popping up in the   corner at this moment so make sure you have the  bootc ready to go and you're booted from there   and here's my repos or my variant is scaling octo  meme uh uh just a random name so step one go to uh GitHub.com and then go to ublue  OS that's step one and sign in   I'll pause the video signed in let  me uh move this here move out of the way so repositories and search  for templates sorry template singular the image template that's the one you  need to have and if you're signed in you'll see   here uh in green use this template right so create  a new repository based on that and you could   generate a a name musical couscous why not and  this is a a demo a repo for video to be removed later all right and just go ahead and click create  repository and just in a few seconds you will have   in your own account you will have it now what  you need to do first is clone this repository   and to do that you can use three options https  SSH and GitHub CLI and for this video I have   set up my keys and if you want to know how to do  that I'll uh make a small side step if you're not   interested in that and then skip to  the marker I will have the time stamp   here and I just go to there and then follow  along so if you're interested in how to set   this up using SSH Keys open up a terminal  so on my machine I already have this and let's generate the commands so use commands the  command is SSH keygen type RSA so for improved   security if I hit enter now it will generate  a key so two keys one uh private key and one   public key hit enter here so it will ask you  indeed where to save the key if you just hit   enter Then will override my existing so  I will not do that and will also ask you   for whether or not you will want a password  but just for the sake of this video let's   um so ID RSA demo enter so here you have the  passphrase enter for no same again that's it   so if you now LS your key h we have a couple of  keys here and also the demo one so you see two   so one is the pop and that's the actually the  one that will be adding so if you catch that out uh this so I'll will remove this key  later so uh no problem in showing you this   string for now so just copy this to your  clipboard right click copy so this is the   generated pub key and in your account you go click  on your picture here and go to settings settings   and then go to SSH and PGP keys let me zoom them  in a little bit here you click here you'll see   the existing ones and just add the new key in  here uh just paste and then you also have that   unique identifier you can add your own but yeah  as you can see here so if I now add that SSH key   in here it will be added and then I can follow  along with the rest of the steps so I just added that and never used that's the one I just added  I'll delete it from my account okay now you can   follow along again all right so welcome back  uh if you click here and then you can copy   this URL to your clipboard and for me I Al uh  in my home directory I have a git repo so then   you can just do get clone paste it using the SSH  keys will resolve it you can also use HTP but uh   for now just use this hidden as as well so this  is what you get out of the box and you don't have   the keys here but that's the part we do next so  let's scroll down and you will see here uh First   Step install the cosine CI tool click that open  and on my machine I have Brew meaning you could   use Brew so Brew install code sign that's  basically it there other ways just check it   repository uh but this is a very important step  I already have cosign so we'll just reinstall it done and it has installed it indeed here so you   can just close this turbinol open up  a new One console in my case and run cosine cosine to here we have it all right  can if it's done installing you can close   that window and in the directory so  need to go back into get and then musical you run this command uh in the directory  Co red Keir no password done so here you have   these two entries pop and the key itself so don't  be alarmed uh we have already a do get ignore file   and where you have the cosign do key so to prevent  to accidentally committing that uh for the whole   world to see you will need to set that up uh later  in the later step but for now is fine so we come   to that step three add the private key to GitHub  so this can also be done manually go to repository   settings under secrets and variables actions you  go here repository here settings scroll down and   secrets and variables and actions because  it's using GitHub actions okay new reposter   secrets and then it's important to specify  the right name for that I will open up a new tab and let's go back to my repository on step three and the  name is signing secrets signing secret copy   that paste in there all right and  here you cut out the cosign do key   so I remove the key after this video so  uh no problem showing that to to you now   so copy control shift C and then paste  it in there okay add the secret done   it's in there let's go back to can close this  go back to repository and then commit to coign   pop to the root of your get repository so  it's already in there right get status you   see that's the cosign pop is red so it's not  included yet so do get at cosign poop get uh um commit with a message add cosign key up key get push get push and now it's in there  all right and that's basically it so   that has been done and and you see  here actions you can see it running   here in progress see for some reason  I already have a pool request that's nice some automated pr request and it's running now so get up  actions is running and let's leave that   running and uh check back later after a  couple of minutes it has been completed   and she indeed uh all the stuff here push to  get up container registry cosign sign in the   container get container registry check  out uh so you see everything uh coming past push this one and here you will  see that is indeed done so this is the address and this by date today but you can also   use latest you can also see here  successfully pushed to latest grab that and the only thing you  now need to do put up new console should the bootc switch and this one so if I had  enter here I need to enter my password give it some time and then  just reboot and then you will boot   into your new operating system it's done  just uh do a system CT Reboot system G and then you will boot into your new OS and  for that we switch to the mobile phone to capture it so here you will have the two  entries and the first one is the   one we just created silver blue hit enter  and uh go into there so for me it will   have my users so I've have test and I  have my own user I can just log in all   right logged in to gome let's continue  with the video capture all right I'm here let open up a terminal so let's validate to boot C status there you go and that's uh that's the  update um so now we're booted and the cool thing   about this that it takes your yeah your personal  data along with you so you don't have to do reinstalls uh open up uh private [Music] window. um account and then uh stories this one this the one we created and here you have the container file let's  say you're happy so let's say you're not   happy all right P sudo bootc roll roll back  just do roll back because this is the roll   back image but warning you can only have two of  these entries so that's a warning you can only   have a booted and one roll back so and here  you can change if you want uh also build.sh   t-x you see t-x is installed t-x TX it's I'm  not expert as tmox but I think just launched   here you can see here green so meaning t-x  have been launched terminal multiplexer example CR is a drawing program I use that a lot   it's not installed here let's  say you want to add it this one so you can add your programs here like  this save it commit it and push it and then   it will re rebuild the whole image and have that  software in there uh I can show you that of course   you might be wondering how to test  this and for that you have tool box create a toolbox and create one for Fedora 41 tool box toolbox enter and you are now in toolbox root a toolbox and here you can test if you can install something for example  CR that I just added to the file you can first   test it if it does if it doesn't install  then you need to do something else oops um so maybe this was not the uh smallest example  but uh at least it works so here you go so you   can launch the program and give it some time  it opens in my other screen I see there's a k so that's one way of doing it  so exit toolbox toolbox is very   handy so let's say you have now validated that um stus mhm so here you have K uh entered  it in here so callon X to save add more sare so if I push it now and go here and then  we see here that it's indeed being picked up   and let's just wait you see the change here now wait till done and then I'll show you the   update and after a couple of minutes it  should complete and then you sudo boot C update you see one layer one layer is needed and it makes sense because  I just in the same layer I added a new piece of   software and then uh just need to update that  one this done you can see everything that has   been done one uh layer removed one added the size  was this and now it's this and just uh as normal reboot and just leave it like this and  then you will have to new boot into new version and back L uh log back in and I see the  newly added program here and you can just start   using it yeah and that's it so uh if you're  not happy then uh you can easily roll back   using a Bootsy and U I would say have fun  testing it and using it and uh that's it bye-bye

2025-02-14 22:34

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