Re: [gentoo-user] Re: Can't get the GUI to stay up for more than a minute or so before crashing

[Michael <confabulate@kintzios.com>]

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On Monday, 24 June 2024 22:52:31 BST Dale wrote:
> Grant Edwards wrote:
> > On 2024-06-24, Dale <rdalek1967@gmail.com> wrote:
> >> Michael wrote:
> >>> On Monday, 24 June 2024 20:47:15 BST Dale wrote:
> >>>> Have you seen this before?
> >>> 
> >>> No, because I've never used dracut.
> >> 
> >> I just had a thought.  I have /usr on the root partition now.  Do I even
> >> need a init thingy? 
> > 
> > Same question as always: does your kernel have enough built-in
> > drivers/modules to mount the root fileystem on /?
> > 
> > If yes, then you don't need an initrd.
> > 
> > If no, then you do need an initrd.
> > 
> > I don't think where /usr is matters, does it?
> > 
> > --
> > Grant
> 
> My understanding, the whole init thing started with a bluetooth keyboard
> or mouse driver that was installed in /usr instead of /bin or /sbin,
> whichever one fits.  I've always had /usr on its own partition until
> this time.  Mostly because it is easier to put /boot and root on regular
> partitions and then put /usr, /var and of course /home on LVM.  That way
> as software like LOo, KDE and others grew, I could use LVM to grow them
> easily enough. 

You need access to the LVM tools to be able to access your /usr.  I expect 
they will be under /usr - hence you need an early userspace with the required 
tools to be able mount LVM and anything in it.

Alternatively, use btrfs and do away with LVM.


> Given the merge of bin and sbin to /usr, I have no idea if a system will
> boot without a init thingy or not.

It won't boot without a initrd if /usr is on a different partition, because 
the OS needs commands available on /usr to boot with.  Chicken <-> egg 
problem.


> This is the first time I've
> ran/installed a system with those merged.  I'd think it would work but I
> don't want to have a unbootable system to find out it doesn't either. 

With a merged /usr you will now also have /bin, /sbin, /lib, /lib64, all of 
them in /usr.


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