[Bug 1473323] Comment bridged from LTC Bugzilla

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------- Comment From pthan at cn.ibm.com 2015-08-27 03:40 EDT-------
Looks like I cannot reproduce this bug with latest 15.10:

root at dilllp1:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu Wily Werewolf (development branch)
Release:        15.10
Codename:       wily
root at dilllp1:~# uname -a
Linux dilllp1 4.1.0-3-generic #3-Ubuntu SMP Tue Jul 28 12:23:44 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
root at dilllp1:~#

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Title:
  ISST-LTE: cannot find root device after installing

Status in debian-installer package in Ubuntu:
  New

Bug description:
  == Comment: #0 - Ping Tian Han <pthan at cn.ibm.com> - 2015-07-07 04:02:18 ==
  ---Problem Description---
  After installation, the system cannot being booted up:

  Loading Linux 3.19.0-22-generic ...
  Loading initial ramdisk ...
  OF stdout device is: /vdevice/vty at 30000000
  Preparing to boot Linux version 3.19.0-22-generic (buildd at fisher01) (gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13) ) #22-Ubuntu SMP Tue Jun 16 17:15:17 UTC 2015 (Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1)
  Detected machine type: 0000000000000101
  Max number of cores passed to firmware: 256 (NR_CPUS = 2048)
  Calling ibm,client-architecture-support... done
  command line: BOOT_IMAGE=/boot/vmlinux-3.19.0-22-generic root=UUID=b8116f85-dd9f-455c-8fd9-73664a05f162 ro splash quiet
  memory layout at init:
    memory_limit : 0000000000000000 (16 MB aligned)
    alloc_bottom : 000000000a3e0000
    alloc_top    : 0000000010000000
    alloc_top_hi : 0000000010000000
    rmo_top      : 0000000010000000
    ram_top      : 0000000010000000
  instantiating rtas at 0x000000000ecb0000... done
  prom_hold_cpus: skipped
  copying OF device tree...
  Building dt strings...
  Building dt structure...
  Device tree strings 0x000000000a3f0000 -> 0x000000000a3f18cf
  Device tree struct  0x000000000a400000 -> 0x000000000a430000
  Calling quiesce...
  returning from prom_init
   -> smp_release_cpus()
  spinning_secondaries = 31
   <- smp_release_cpus()
   <- setup_system()
  [    1.471942] /build/buildd/linux-3.19.0/drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
  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/b8116f85-dd9f-455c-8fd9-73664a05f162 does not exist.  Dropping to a shell!

  
  BusyBox v1.22.1 (Ubuntu 1:1.22.0-9ubuntu1) built-in shell (ash)
  Enter 'help' for a list of built-in commands.

  (initramfs)

   
  ---uname output---
  na
   
  Machine Type = na 
   
  Contact Information = Ping Tian Han/pthan at cn.ibm.com, 	Mikhail Afanasiev/afanasie at us.ibm.com 
   
  ---boot type---
  HDD
   
  ---Kernel cmdline used to launch install---
  ubuntu-installer-14043/ppc64el/vmlinux tasks=standard pkgsel/language-pack-patterns= pkgsel/install-language-support=false url=http://10.33.11.31/data/autoinst/ted.preseed --- quiet
   
  ---Install repository type---
  Internet repository
   
  ---Install repository Location---
  ports.ubuntu.com
   
  ---Point of failure---
  Problem during post-install (stage 2) configuration or other problem seen after reboot

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