* * Cannot automatically mount your /boot partition. * Your boot partition has to be mounted rw before the installation * can continue. lilo needs to install important files there. * !!! ERROR: sys-boot/lilo-22.5.8-r1 failed. !!! Function mount-boot_mount_boot_partition, Line 53, Exitcode 0 !!! Please mount your /boot partition manually! !!! FAILED preinst: 1
(The error messages will be pretty much identical for both "lilo" and "grub".)
The problem was, for me at least, that prior to doing the chroot into the new environment, I had failed to mkdir and mount the /boot partition. (See the start of step 2 in my install notes.)
Here's the quick-n-easy way that I fixed the problem. I had to temporarily exit out of the chroot'd environment, back to the livecd bootup environment, mount the partition, and then chroot back.
livecd / # exit livecd / # mkdir /mnt/gentoo/boot livecd / # mount /dev/md0 /mnt/gentoo/boot livecd / # cat /proc/mounts livecd gentoo # chroot /mnt/gentoo /bin/bash livecd / # env-update livecd / # source /etc/profile (now copy your kernel into /boot again from /usr/src/linux-2.6.6) livecd / # emerge lilo (or if you're using grub...) livecd / # emerge grub
Update: While this set of instructions did properly fixup the /boot partition with "grub", it really didn't treat the root cause of the entire mess. (See Troubleshooting Software RAID.)
The root-cause was that back when I did the first part of the install, not only did I fail to mount the /mnt/gentoo and /mnt/gentoo/boot folders properly, but I then mounted them out-of-order when I did catch the error. That causes all sorts of problems down the road, yet the install process will look like it's going off without a hitch (until you reboot).
Links:
www.gentoo.pl - This page might've had the answer, but unfortunately it was written in polish.
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