"Guilherme G. Piccoli" <gpicc...@linux.vnet.ibm.com> writes:
> On 08/28/2017 02:56 AM, Michael Ellerman wrote: >> Some Power9 boxes will have this adapter installed, so add it to the >> defconfig so we can boot on those machines without an initrd. > > Michael, not sure if this affects Petitboot (I know it has its own > default config files), but in the past we had some issues with this > driver and it's nice to have the possibility to blacklist it. Why we were black listing it? > What is the rationale for this change? I mean, how being able to boot > without initrd is interesting here? Sorry if it's silly question! It is a silly question! :) When you boot as many kernels as me it's preferable to be able to build a kernel completely remote from the box, throw the kernel on a tftp server and have the machine boot from that kernel all the way to userspace. That requires not using an initrd, and therefore having all the drivers built-in that are needed to get to the boot disk. (Yeah it is "possible" to build an initrd remotely but it's a pain). And the one P9 box I have here uses that driver for its root disk, so I do really want it to be =y. cheers