[RFC PATCH] rootfs: force mounting rootfs as tmpfs

On Wed, 2018-01-31 at 21:03 -0500, Arvind Sankar wrote:

On Wed, Jan 31, 2018 at 05:48:20PM -0600, Rob Landley wrote:

quoted

On 01/31/2018 04:07 PM, Mimi Zohar wrote:

quoted

On Wed, 2018-01-31 at 13:32 -0600, Rob Landley wrote:>> (The old "I configured in tmpfs and am using rootfs but I want that

rootfs

quoted

quoted

to be ramfs, not tmpfs" code doesn't seem to be a real-world concern, does
it?)

I must be missing something. ?Which systems don't specify "root=" on
the boot command line.

Any system using initrd or initramfs?

Don't a lot of initramfs setups use root= to tell the initramfs which
actual root file system to switch to after early boot?

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

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

Mimi

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