Re: [RFC PATCH] rootfs: force mounting rootfs as tmpfs

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On 01/31/2018 10:22 PM, Mimi Zohar wrote:
> 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:
>>> On 01/31/2018 04:07 PM, Mimi Zohar wrote:
>>>> 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
>>>>> 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

"The kernel can't break this buggy userspace package."

"The kernel must give access to a new feature to this buggy userspace
package".

I think kernel policy asks you to pick one, but I could be wrong...

Rob
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