Hi, Michael, thanks for you reply. Please forgive me for not having mentioned grub2-mkconfig and grub2-install. The mentioned grub.cfg was a sample from a working system, with legacy grub:0, from which I have recovered parts of the kernel command line parameters.
After "genkernel" finished to build the kernel, I've issued: grub2-mkconfig -o /boot/grub2/grub.cfg grub2-install /dev/sda Sorry for this. Francisco 2013/8/26 Michael Hampicke <m...@hadt.biz> > Am 26.08.2013 17:41, schrieb Francisco Ares: > > Hi, > > > > After a few solved problems, I am still unable to completely boot using > > grub:2, and now I just can't find anything else to fiddle with. > > > > So I would really appreciate if someone could take a look at my > > configuration: > > > > - system is amd64; > > - hard disk partitioning: > > - two first primary partitions, unused (for now); > > - third (/dev/sda3) is /boot partition, kernel built and in place; > > - extended partition as fourth partition; > > - logical partition (/dev/sda5) is "/" linux partition, ext4 formated; > > - emerged the following, before building kernel; > > - genkernel ; > > - media-gfx/splashutils-1.5.4.4-r1; > > - media-gfx/splash-themes-gentoo-20101212-r1 ; > > - sys-apps/v86d-0.1.10; > > - genkernel command line: > > genkernel all \ > > --color --menuconfig --splash=natural_gentoo \ > > --splash-res=1024x768,1280x1024,1366x768,1440x900 \ > > --mountboot --install --unionfs --real-root=/dev/sda5 \ > > --ramdisk-modules --postclear > > - kernel built with: > > - CONFIG_FB_UVESA=y > > - CONFIG_INITRAMFS_SOURCE="/usr/share/v86d/initramfs" > > - CONFIG_EXT4_FS=y > > - CONFIG_EXT4_FS_POSIX_ACL=y > > - CONFIG_EXT4_FS_SECURITY=y > > - grub2 defaults (/etc/defaults/grub2) only difference from original: > > GRUB_CMDLINE_LINUX="init=/linuxrc real_root=/dev/sda5 > > video=uvesafb,mtrr:3,ywrap splash=silent,fadein,theme:natural_gentoo > > nodevfs udev devfs=nomount CONSOLE=/dev/tty1 quiet" > > > > - sample extract from grub:0 config file, used in a working (a bit older) > > system: > > title=Gentoo Linux (3.8.13-gentoo) > > root (hd0,1) > > kernel /boot/kernel-genkernel-x86_64-3.8.13-gentoo ro root=/dev/ram0 > \ > > init=/linuxrc real_root=/dev/sda4 vga=791 > > splash=silent,theme:natural_gentoo \ > > console=tty1 verbose nodevfs udev devfs=nomount CONSOLE=/dev/tty1 > > quiet > > initrd /boot/initramfs-genkernel-x86_64-3.8.13-gentoo > > > > > > Now the boot stops showing the messages (after the Tux logos appeared): > > > > Can't open cfg file //etc/splash/natural_gentoo/640x480.cfg > > No verbose picture specified in the theme > > No silent picture specified in the theme > > No verbose picture specified in the theme > > Can't open cfg file //etc/splash/natural_gentoo/640x480.cfg > > No verbose picture specified in the theme > > No silent picture specified in the theme > > !! Block device /dev/sda5 is not a valid root device > > > > > > The last line explains the ones preceding it. > > > > Any hints on where to look at? > > > > Thanks > > Francisco > > > > Have you tried generating a grub2 config file via grub2-mkconfig. You > should try that and see if you can boot. Then adjust the configuration > to your needs. > > On first glance, everything in your setup looks the way it's supposed to > be, but I suspect your customized grub2 cfg. > >
