[RFC PATCH] rootfs: force mounting rootfs as tmpfs

On Thu, 2018-02-01 at 09:20 -0600, Rob Landley wrote:

quoted

With your patch and specifying "root=tmpfs", dracut is complaining:

dracut: FATAL: Don't know how to handle 'root=tmpfs'
dracut: refusing to continue

[googles]... I do not understand why this package exists.

If you're switching to another root filesystem, using a tool that
wikipedia[citation needed] says has no purpose but to switch to another
root filesystem, (so let's reproduce the kernel infrastructure in
userspace while leaving it the kernel too)... why do you need initramfs
to be tmpfs? You're using it for half a second, then discarding it,
what's the point of it being tmpfs?

Unlike the kernel image which is signed by the distros, the initramfs
doesn't come signed, because it is built on the target system. ?Even
if the initramfs did come signed, it is beneficial to measure and
appraise the individual files in the initramfs.

Sigh. If people are ok with having rootfs just be tmpfs whenever tmpfs
is configured in, even when you're then going to overmount it with
something else like you're doing, let's just _remove_ the test. If it
can be tmpfs, have it be tmpfs.

Very much appreciated!

thanks,

Mimi

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