by heavyset_go | 2025-10-29 02:56:17+00:00
> The fact that mobile phones aren't yet just a standard type of portable computer with an open-ish harware/driver ecosystem that anybody can just make an OS for (and hence allow anybody to just install what they want) is kind of wild IMHO. Why hasn't the kind of ferver that created Linux driven engineers to fix their phones?

It's because each phone SoC is essentially its own bespoke architecture. You can't build one arm64 Linux ISO that will work on all phones like you can an x86_64 ISO on a PC. Each and every model of phone requires 0) unlocked bootloaders and either 1) full support from the vendor for Linux or 2) dedicated hackers willing to reverse engineer the board to get it to boot Linux in the first place & then developers willing to write missing device drivers & then maintainers willing to keep the fork up to date or mainline the changes.

It will always be cheaper for phone manufacturers to develop bespoke SoCs than it is for them to implement protocols and interfaces that make booting and hardware discovery standardized like they are on the PC. Making a phone as accessible as a PC to booting generic operating systems inherently means increasing costs at every level from the design up.

> I'm sometimes surprised at the plethora of cheap handheld gaming systems coming out of China that support either Linux, Android, or sometimes both, and seem to be based on a handful of chipsets. If anybody ever slapped an LTE module and drivers onto one of those things we'd have criminally cheap and powerful, open phone ecosystem.

On the surface it seems like that, but all of those devices suffer from the same issues I described above. There will be thousands of devices that "support" Linux, but only nominally.

What happens is, if the manufacturer even releases the kernel source, you get a git dump of a forked kernel that was never modified to be upstreamed with the vanilla mainline kernel. That essentially means you are stuck using that fork unless you have the time, knowledge and skill to port that fork over to the mainline, which is a lot of work. This applies to every SoC, and SoC modification, in gaming systems. Barely any of this work crosses over or can be standardized like it is on a PC.

None of that makes a platform a real open ecosystem.

Source: I'm involved in porting and maintaining a Linux distro for those cheap Chinese handheld gaming systems. The only reason Linux runs on them is because weird nerds spent time getting it to run on them. When they get bored, your Linux "support" ends.

The best we can hope for is for ARM servers to scale down to the point we can use them in small form factors, as ARM servers implement the same standards PCs do to run generic Linux ISOs. We aren't going to get this from the mobile hardware ecosystem, there just are no incentives to make such an investment. Maybe we'll get them if ARM PCs truly take off.

> It is interesting though how this same conversation doesn't exist in the same way in other areas of computing like video game consoles or other embedded computing devices where the controls against arbitrary applications is even stronger.

The conversation takes place all the time, there are tons of people who want to, and do, run homebrew and Linux on their consoles, same thing with embedded devices. Getting Linux or Doom to run on an embedded device is a rite of passage.