[Bug 1861655] Comment bridged from LTC Bugzilla

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------- Comment From mranweil at us.ibm.com 2020-04-16 12:27 EDT-------
I was able to install successfully on NVMe using the updated (20.04.1+git19.3bd1382b) installer:
ubuntu at ltc-wcwsp3:~$ mount |grep nv
/dev/nvme0n1p2 on / type ext4 (rw,relatime)
ubuntu at ltc-wcwsp3:~$

Using the old (22.04.1) installer I choose 'Use entire disk' errors with:
ERROR: hook /usr/share/apport/general-hooks/ubuntu.py crashed:??????????????????
An error occurred during installation    tar: Removing leadiTraceback (most recent call last):
????????????????????????????????????????????????????????????????????????????????                  File "/snap/subiqui

This works on the new installer (20.04.1+git19.3bd1382b) - I can
successfully use 'Use entire disk' and select the NVMe device and
install.

However, I still see a problem when I use 'Custom storage layout' with NVMe on 20.04.1+git19.3bd1382b:
tar: Removing leading `/' from member names?????????????????????????????????????
An error occurred during installation    tar: Removing leading `/' from hard link targets
????????????????????????????????????????????????????????????????????????????????

I did send logs, I can paste more info if that's better.

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https://bugs.launchpad.net/bugs/1861655

Title:
  [Ubu 20.04][kernel-5.4.0-12-generic][WSP-DD2.3] Unable to install Ubu
  20.4 on NVMe disk

Status in The Ubuntu-power-systems project:
  Confirmed
Status in grub-installer package in Ubuntu:
  Confirmed
Status in subiquity package in Ubuntu:
  Confirmed

Bug description:
  [Ubu 20.04][kernel-5.4.0-12-generic][WSP-DD2.3] Unable to install Ubu 20.4 on NVMe disk
   
  Contact Information = kalshett at in.ibm.com, naveet89 at in.ibm.com, nasastry at in.ibm.com 
   
  ---uname output---
  [Ubu 20.04][kernel-5.4.0-12-generic]
   
  Machine Type = Witherspoon DD2.3 
   
  Test Environment:
  * Hardware: Witherspoon-DD2.3
  * Ubuntu 20.04 
  * kernel: 5.4.0-12-generic #15-Ubuntu

  Steps:
  1. Kick start  Ubu 20.4 on Witherspoon-DD2.3 baremetal 
  2. Select NVMe disk for installation, at the end of the install seen Grub boot loader issue

    ??????????????????????? Select and install software ???????????????????????
    ?                                                                         ?

  
               ?? [!!] Install the GRUB boot loader on a hard disk ??
    ????????????                                                    ? ?????????
    ?          ?      Unable to install GRUB in /dev/nvme0n1p1      ?         ?
    ?          ? Executing 'grub-install /dev/nvme0n1p1' failed.    ?         ?
    ?          ?                                                    ?         ?
    ? Running "? This is a fatal error.                             ?         ?
    ?          ?                                                    ?         ?
    ????????????     <Go Back>                       <Continue>     ? ?????????
               ?                                                    ?
               ??????????????????????????????????????????????????????


       ????????? [!!] Install the GRUB boot loader on a hard disk ??????????
       ?                                                                   ?
       ?                     Installation step failed                      ?
       ? An installation step failed. You can try to run the failing item  ?
       ? again from the menu, or skip it and choose something else. The    ?
       ? failing step is: Install the GRUB boot loader on a hard disk      ?
       ?                                                                   ?
       ?                            <Continue>                             ?
       ?                                                                   ?
       ?????????????????????????????????????????????????????????????????????

  
  <Tab> moves; <Space> selects; <Enter> activates buttons

  
  Complete install screenshot attached...

  grub-install doesn't seem to install the bootloader on the nvme device. 
  --------------------------------------------------------------------------

  Logs below -

  
  Jan 31 16:01:51 in-target: Installing for powerpc-ieee1275 platform.^M
  Jan 31 16:01:52 in-target: grub-install: error: unknown filesystem.^M
  Jan 31 16:01:52 in-target: Failed: grub-install --target=powerpc-ieee1275 /dev/sda1 ^M
  Jan 31 16:01:52 in-target: WARNING: Bootloader is not properly installed, system may not be bootable^M
  ..
  ..

  Jan 31 16:01:57 40grub2: debug: parsing: fi
  Jan 31 16:01:57 40grub2: debug: parsing: ### END /etc/grub.d/41_custom ###
  Jan 31 16:01:57 50mounted-tests: debug: /usr/lib/linux-boot-probes/mounted/40grub2 succeeded
  Jan 31 16:01:57 linux-boot-prober: debug: linux detected by /usr/lib/linux-boot-probes/50mounted-tests
  Jan 31 16:01:57 grub-installer: info: Installing grub on '/dev/nvme0n1p1'
  Jan 31 16:01:57 grub-installer: info: grub-install does not support --no-floppy
  Jan 31 16:01:57 grub-installer: info: Running chroot /target grub-install  --force "/dev/nvme0n1p1"
  Jan 31 16:01:57 grub-installer: Installing for powerpc-ieee1275 platform.
  Jan 31 16:01:58 grub-installer: grub-install: error: unknown filesystem.
  Jan 31 16:01:58 grub-installer: error: Running 'grub-install  --force "/dev/nvme0n1p1"' failed.

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