Basic (stupid) question on tubes and pump......

Excitedly I picked up my first ever MTB yesterday. As a roadie, the idea of something that weighs the same as a small car and is optimised to cover you in mud is going to take some getting used to.
Anyway, apologies for the very stupid question but what do I do for tubes and pump?
I assumed everything in the MTB world was Schrader so I need a new hand pump and spare tube for rides as I only have road Presta pumps. The tubes seem to come in both versions though. From reading a bit it seems the rim drilling is a little larger for Schrader so maybe not the best idea to use Presta tubes?
To complicate things though, I’m quite keen on going tubeless and Trek advise these are the ones for my rims. They’re Presta as most tubeless kits seem to be.
If in an emergency I have to use a tube and it has to be Schrader that means making sure I have a pump which can do both which is a pain.
Sorry this is a bit rambling. What do you guys do?
As an aside, I got a Topeak RaceRocket yesterday as it can do both but they’re famed for unscrewing the valve inners on Presta which is something I really could do without.
https://www.trekbikes.com/gb/en_GB/equipment/cycling-components/bike-tyres/bike-tyre-accessories/bontrager-round-base-tlr-valve-stem/p/27395/
Anyway, apologies for the very stupid question but what do I do for tubes and pump?
I assumed everything in the MTB world was Schrader so I need a new hand pump and spare tube for rides as I only have road Presta pumps. The tubes seem to come in both versions though. From reading a bit it seems the rim drilling is a little larger for Schrader so maybe not the best idea to use Presta tubes?
To complicate things though, I’m quite keen on going tubeless and Trek advise these are the ones for my rims. They’re Presta as most tubeless kits seem to be.
If in an emergency I have to use a tube and it has to be Schrader that means making sure I have a pump which can do both which is a pain.
Sorry this is a bit rambling. What do you guys do?
As an aside, I got a Topeak RaceRocket yesterday as it can do both but they’re famed for unscrewing the valve inners on Presta which is something I really could do without.
https://www.trekbikes.com/gb/en_GB/equipment/cycling-components/bike-tyres/bike-tyre-accessories/bontrager-round-base-tlr-valve-stem/p/27395/
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You can buy grommets to make the hole smaller as well. I think the idea is that it stops the tube from trying to squeeze through the hole and popping (I doubt it's much of a problem at 30psi or whatever i run the mtb tyres at)
If you want to stay Schrader for some reason, I think I have some Schrader tubeless valves which I'll never use and could drop in the post (if I can find them).
What is fitted to your new MTB? Just buy tubes with valves to match.
The majority of MTBs are equipped with presta valves but the main difference between road and MTB tyres is that the former are high pressure whereas the latter are high volume. So your new pump needs* to be a high volume version.
* You can use a high pressure version but it takes longer to pump the tyre up.
And it all promised so so much”
Giant Trance 2 27.5 2016 ¦ Sonder Broken Road 2021¦ Giant Revolt Advanced 2 2019 ¦ Giant Toughtroad SLR 1 2019 ¦ Giant Anthem 3 2015 ¦ Specialized Myka Comp FSR 2009
MTB tubes they mostly now are Presta.
If you're going tubeless you carry a Presta tube with you as you should do.
No problem here.
I always carry a suitable tube with me on my tubeless setup, it will be the same tube that I would have fitted if I wasn't running tubeless; when it comes to using it, you'll just remove the tubeless valve from the rim and then fit the tube as normal (while getting thoroughly messy hands from the sealant - try not to get any on your nice clean MTB clothes). I also carry a tubeless repair kit, which normally consists of some rubber rods, a gouging / pushing tool, scraper, cutter, and maybe some rubber solution too, I've never had to use it yet though as normal puncture holes tend to fix themselves.
It may be normal for your tubeless tyres to seep a bit of sealant (it may splatter onto your frame) as it finds any tiny gaps and holes, it should seal them after a ride or two so your tyre pressures should then remain stable (around 15 - 20psi for 2.3 width, 10 - 15psi for 2.8/3.0 width). I have some Specialized "tubeless ready" tyres that have thin sidewalls, they just wouldn't seal at all - the sealant kept seeping out through the walls where the canvas stitching showed through - if this continues after the initial ride then I can only advise that you do what I did and stick to tubes for those tyres, or buy some with thicker sidewalls. I'd also advise that you do the tubeless rim tape yourself, I've never had a problem when I did this but always had a problem when someone else did it!
I tend to go for the short and fat pump types, they move a lot of air per stroke and they're easy to carry or store on the frame (next to the bottle cage, or in a pocket).
Depending on whether or not you want to join the backpackers, there are MTB specific tops and jerseys available that come with rear pockets, I've never lost anything from mine so long as the stuff was inside the elasticated top, I can carry everything I need in them for a day's ride and I have a bottle or two on the frame.
Oh, and make sure you have a decent track pump, you'll need it for fast pumping of a tubeless tyre to achieve that initial seal.
Usually it's me.