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Ramroot – Run Arch Linux Entirely from RAM (2017)

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Re: Ramroot – Run Arch Linux Entirely from RAM (2017)

#3

This is neat, but nothing new. I remember using this builtin feature on live distros like Slax and DSL over a decade ago. It was fun to see old computers run (comparably) blazingly fast.

The new thing is that it can be just be switched on/off on an existing install.

Sure people have been running distros from ram for a while but getting the tooling situated to make it like any other feature it super cool.

Re: Ramroot – Run Arch Linux Entirely from RAM (2017)

#6
post #4

Does TAILS not do this? Forgive my ignorance, I only know the basic idea of it.

Most live distros do this— rather than have an initramfs that finds and mounts the removable media, they just put everything in the initramfs itself.

What's new here is being able to optionally and seamlessly copy the regular disk install into RAM on boot.

Re: Ramroot – Run Arch Linux Entirely from RAM (2017)

#7
I would love to see this feature added to CentOS/RHEL. In the past, we used NFS Diskless which is anything but diskless. Hacking together an initrd that loads everything into ram is, well, hacky. To have a dracut function or a toggle to enable this would be great for lightweight deployments, testing, labs, vagrant, etc... I'm sure that RHEL must have been contemplating it because there is /etc/sysconfig/readonly-root unless that was just a better way to do NFS diskless...

Re: Ramroot – Run Arch Linux Entirely from RAM (2017)

#8
post #4

Does TAILS not do this? Forgive my ignorance, I only know the basic idea of it.

Most live distros do this— rather than have an initramfs that finds and mounts the removable media, they just put everything in the initramfs itself. What's new here is being able to optionally and seamlessly copy the regular disk install into RAM on boot.

What do you mean by "flip to an existing install?"

Re: Ramroot – Run Arch Linux Entirely from RAM (2017)

#10

Earlier quoted context omitted.

Most live distros do this— rather than have an initramfs that finds and mounts the removable media, they just put everything in the initramfs itself. What's new here is being able to optionally and seamlessly copy the regular disk install into RAM on boot.

What do you mean by "flip to an existing install?"

I think the mechanism is that it's installed in a normal persistent fashion, but per-boot you can opt-in to loading the current install into memory.
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