Re: dracut - help!

On 2017-02-23 20:08, Thanos Baloukas wrote:
> On 23/02/2017 07:25 μμ, Thanos Baloukas wrote:
>> On 23/02/2017 02:59 μμ, Linuxero wrote:
>>> Hi everybody;
>>> 
>>> I have finished the latest development systemd LFS book. I have NVME
>>> disks in my machine and the LFS partition is a GUID one. I configured 
>>> my
>>> kernel and it boot well if I compile the NVME drivers built-in. 
>>> However,
>>> I wanted to compile NVME as loadable modules. I installed dracut and
>>> tried to create an initrd. Actually, the initrd is well, but for some
>>> strange reason I am always dropped to dracut emergency shell as the
>>> partition can not be found.
>>> 
>>> Dracut version is 044. The emergency shell is unusable, as if the 
>>> system
>>> were halted.
>>> 
>>> Any suggestion about dracut with LFS/BLFS?
>>> 
>>> Thanks in advance,
>>> 
>> Are there any messages? Are the 'linux' and 'root=UUID='
>> entries in grub.cfg correct? Could it be that there is not
>> /etc/os-release? I recall that it would not switch root
>> if it did not exist.
>> 
> You said you are using GUID (I'm getting that as GPT partition table).
> I have no experience with GPT, sorry, the required root= entry
> may differ. UUIDs may not be required, I mentioned that because
> I'm using them in /etc/fstab and grub.cfg when booting with
> an initramfs built with dracut.
> 
> --
> Thanos

Thanks for your answers. It is GPT scheme that I am using. UUIDs, Labels 
and everything is correct.

BTW; UUIDs work the same on GPT.

I guess that my problem is the following:

NVME modules are not loaded in initrd. Because; when I compile the 
kernel with NVME built-in, I can boot without any problem. So it should 
be something with initrd. I am new to dracut. I could write a hook or a 
module, but I don't think that is necessary for my scenario. Am I right?

If someone has more experience with dracut and how to build initrd for 
LFS using it; I'd appreciate any hint.

Thanks again

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