On 12/11/2020 11:39 AM, Michael wrote: > On Friday, 11 December 2020 18:24:27 GMT the...@sys-concept.com wrote: >> On 12/11/2020 10:45 AM, Michael wrote: >>> On Friday, 11 December 2020 16:42:08 GMT tedheadster wrote: >>>> On Fri, Dec 11, 2020 at 9:27 AM <the...@sys-concept.com> wrote: >>>>> On 12/11/2020 07:07 AM, the...@sys-concept.com wrote: >>>>>> Now, when I boot I get a message: >>>>>> >>>>>> Block device UUID=d32946b3-2236-4998-80dd-68b7d78e0c7b is not a valid >>>>>> root device. >>>>> >>>>> This puzzles me. I cannot find the string "is not a valid root device" >>>>> (or >>>> >>>> sub-strings) in the source code for the Linux kernel, GRUB2, and refind. >>>> It >>>> seems to me it should be in one of them. >>>> >>>> - Matthew >>> >>> The error is indicative of the kernel driver for the / block device >>> missing. If it is not built in-the-kernel, but as a module, then it >>> should be in initramfs. >>> >>> Copy the kernel image, System.map, .config and corresponding initramfs to >>> the /boot partition, then point your boot manager to the kernel to boot >>> it. >> How do you copy/generate initramfs in /boot directory? > > https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Kernel > https://wiki.gentoo.org/wiki/Genkernel > > If you're using genkernel it will copy it to /boot. Besides the Handbook you > may find the following reference material on boot managers/loaders useful: > > For rEFInd see here: > > https://wiki.gentoo.org/wiki/Refind > > For GRUB see here: > > https://wiki.gentoo.org/wiki/GRUB2 > > For efibootmgr see here: > > https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/ > Bootloader#Alternative_2:_efibootmgr
After I compile kernel I usually get this message (WHY?): * You will find the initramfs in '/boot/initramfs-5.4.72-gentoo.img'. * WARNING... WARNING... WARNING... * Additional kernel parameters that *may* be required to boot properly: * * With support for several ext* filesystems available, it may be needed to * add "rootfstype=ext3" or "rootfstype=ext4" to the list of boot parameters.
