Dear PPC types :
So I carefully built kernel 4.15.6 and created the needed initrd.img-4.15.6 in /boot with update-initramfs and checked it carefully against the pre-existing initrd.img-4.13.0-1-powerpc64 for Debian buster/sid. Everything looks great and my objective was to poke around the RFI flush of L1-D cache issue. Which may exist. No one really knows ( yet ): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aa8a5e0062ac940f7659394f4817c948dc8c0667 I had to take a picture of the screen but really it seems to say that my new initrd will not load into memory for some reason. Perhaps too darn big? This is an old yet well loved PowerMac G5 and I am wondering if there is an nvram or maybe an openfirmware command magic incantation to utter? I have 8G of memory and surely no reason to not load in a very large initrd image? What I see on the screen seems fairly clear : Welcome to yaboot version 1.3.17 Enter "help" to get some basic usage information boot: Linux Please wait, loading kernel... Elf64 kernel loaded... Loading ramdisk... ERROR: claim of 0xfe49172 in range 0x1340000-0x10000000 failed Claim failed for initrd memory ramdisk load failed ! Apple PowerMac11,2 5.2.7f1 BootROM built on 09/30/05 at 15:31:03 Copyright 1994-2005 Apple Computer, Inc. All Rights Reserved. Welcome to Open Firmware, the system time and date is: 03/03/2018 23:31:47 etc etc and the usual "0 >" prompt wherein I went looking for nvram data with printenv. I won't retype all that. I am hoping that the variable load-base may be of help here. Any thoughts? Dennis ps: yaboot conf is trivial : nix# cat /etc/yaboot.conf ## yaboot.conf generated by debian-installer ## ## run: "man yaboot.conf" for details. Do not make changes until you have!! ## see also: /usr/share/doc/yaboot/examples for example configurations. ## ## For a dual-boot menu, add one or more of: ## bsd=/dev/hdaX, macos=/dev/hdaY, macosx=/dev/hdaZ boot="/dev/disk/by-id/ata-Hitachi_HDS725050KLA360_KRVN23ZAHA5DBD-part2" device=/ht@0,f2000000/pci@9/k2-sata-root@c/@0/@0 partition=3 root="/dev/sda3" timeout=50 install=/usr/lib/yaboot/yaboot magicboot=/usr/lib/yaboot/ofboot enablecdboot image=/boot/vmlinux label=Linux read-only initrd=/boot/initrd.img image=/boot/vmlinux.old label=old read-only initrd=/boot/initrd.img.old nix# However I did add in these : nix# diff /etc/yaboot.conf_20180303232549 /etc/yaboot.conf 20a21,22 > append="verbose ipv6.disable=1" > pause-after nix#
