[Bug 1334649] [NEW] ppc64el/cdrom: ieee1275/cdrom devalias doesn't work on all machines

[Colin Watson]

Public bug reported:

Some systems refuse to boot our ppc64el CD images, dropping to a GRUB
prompt.  This is because I set the GRUB prefix in d-i to
(ieee1275/cdrom)/boot/grub to work around a different failure, but not
all systems have the ieee1275/cdrom devalias.  Setting ()/boot/grub
instead works on the system where I originally had this problem, and
should fix the other hardware in question too.

Bug originally reported by Paulo F. Smorigo.

** Affects: debian-installer (Ubuntu)
     Importance: High
     Assignee: Colin Watson (cjwatson)
         Status: Fix Committed

** Affects: debian-installer (Ubuntu Trusty)
     Importance: High
     Assignee: Colin Watson (cjwatson)
         Status: In Progress

** Changed in: debian-installer (Ubuntu)
       Status: New => Triaged

** Changed in: debian-installer (Ubuntu)
   Importance: Undecided => High

** Changed in: debian-installer (Ubuntu)
     Assignee: (unassigned) => Colin Watson (cjwatson)

** Also affects: debian-installer (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Changed in: debian-installer (Ubuntu Trusty)
       Status: New => Triaged

** Changed in: debian-installer (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: debian-installer (Ubuntu Trusty)
     Assignee: (unassigned) => Colin Watson (cjwatson)

** Changed in: debian-installer (Ubuntu Trusty)
    Milestone: None => ubuntu-14.04.1

** Changed in: debian-installer (Ubuntu)
       Status: Triaged => Fix Committed

** Changed in: debian-installer (Ubuntu Trusty)
       Status: Triaged => In Progress

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https://bugs.launchpad.net/bugs/1334649

Title:
  ppc64el/cdrom: ieee1275/cdrom devalias doesn't work on all machines

Status in “debian-installer” package in Ubuntu:
  Fix Committed
Status in “debian-installer” source package in Trusty:
  In Progress

Bug description:
  Some systems refuse to boot our ppc64el CD images, dropping to a GRUB
  prompt.  This is because I set the GRUB prefix in d-i to
  (ieee1275/cdrom)/boot/grub to work around a different failure, but not
  all systems have the ieee1275/cdrom devalias.  Setting ()/boot/grub
  instead works on the system where I originally had this problem, and
  should fix the other hardware in question too.

  Bug originally reported by Paulo F. Smorigo.

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