IBM Power8 requires rootdelay= in order to boot

[Mike Rushton]

ubuntu@P8:~$ lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04

After installing Ubuntu 14.04 onto an IBM Power8 using bare metal mode, the installation will not boot unless setting a rootdelay timeout as a kernel flag.

The following error occurs at boot otherwise:

Gave up waiting for root device. Common problems:
 - Boot args (cat /proc/cmdline)
   - Check rootdelay= (did the system wait long enough?)
   - Check root= (did the system wait for the right device?)
 - Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/by-uuid/ad097f75-53df-40dc-9660-2397ac629778 does not exist. Dropping to a shell!

A setting of rootdelay=190 seems to work whereas 90 was not long enough.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-44-generic 3.13.0-44.73
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic ppc64le
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: ppc64el
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: [Errno 2] No such file or directory: 'iw'
CurrentDmesg:

Date: Fri Jan 30 16:11:28 2015
HibernationDevice: RESUME=UUID=f8fdf988-698a-424f-99ec-f1bcd83535fd
InstallationDate: Installed on 2015-01-29 (1 days ago)
InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release ppc64el (20140416.2)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb:
 Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
PciMultimedia:

ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: root=UUID=ad097f75-53df-40dc-9660-2397ac629778 ro splash quiet rootdelay=190
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-44-generic N/A
 linux-backports-modules-3.13.0-44-generic N/A
 linux-firmware 1.127.11
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)

[Brad Figg (brad-figg)]

This change was made by a bot.

[Anton Blanchard (anton-samba)]

This was fixed in bug #1326199