[Bug 1606089] Re: unable to boot after 'entire disk' install (16.10, ppc)

[K1773R]

awesome, didnt know grub could boot on operfirmware already.

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Title:
  unable to boot after 'entire disk' install (16.10, ppc)

Status in yaboot package in Ubuntu:
  Confirmed
Status in yaboot package in Debian:
  Confirmed

Bug description:
  Just did an entire disk install from todays (24.07.2016) Yakkety
  daily. Installation procedure went fine, but the automatically created
  /etc/yaboot.conf seems faulty.

  1st stage-boot runs fine, the boot options are displayed correctly,
  pressing "L" leaves me at the 2nd stage boot prompt where you can
  choose between "Linux" and "old" boot options. But either of them does
  not work, throwing the error message:

  "/pci at f4000000/ata-6 at d/@0:3,/boot/vmlinux: unknown or corrupt
  filesystem"

  To rule out other issues I did an openfirmware reset, wiped /dev/sda
  and tried a second time with a fresh mac partition table. But the
  problem stays the same, 16.10 is not bootable on my PowerBook 5,6. It
  did run 16.04 before.

  Partition layout is the standard created by "entire disk" install, /dev/sda4 is swap.
  /dev/sda2: LABEL="bootstrap" TYPE="hfs" PARTLABEL="untitled"
  /dev/sda3: UUID="b7bdb9a4-7316-4966-aa65-1d546b211204" TYPE="ext4" PARTLABEL="untitled"

  ## yaboot.conf generated by the Ubuntu installer
  boot="/dev/disk/by-id/ata-ST9808211A_3LF2VVGH-part2"
  device=/pci at f4000000/ata-6 at d/@0
  partition=3
  root="UUID=b7bdb9a4-7316-4966-aa65-1d546b211204"
  timeout=50
  install=/usr/lib/yaboot/yaboot
  magicboot=/usr/lib/yaboot/ofboot
  enablecdboot

  image=/boot/vmlinux
  	label=Linux
  	read-only
  	initrd=/boot/initrd.img
  	append="quiet splash"

  image=/boot/vmlinux.old
  	label=old
  	read-only
  	initrd=/boot/initrd.img.old
  	append="quiet splash"

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: yaboot 1.3.16-4ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-31.50-powerpc-smp 4.4.13
  Uname: Linux 4.4.0-31-powerpc-smp ppc
  ApportVersion: 2.20.2-0ubuntu1
  Architecture: powerpc
  CasperVersion: 1.376
  CurrentDesktop: MATE
  Date: Mon Jul 25 00:19:21 2016
  LiveMediaBuild: Ubuntu-MATE 16.10 "Yakkety Yak" - Alpha powerpc (20160724)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: yaboot
  UpgradeStatus: No upgrade log present (probably fresh install)

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