[Bug 1843402] Re: Failed to install guestOS ubuntu-19.10-server-amd64.iso with bios in ESXi

[vmware-gos-Yuhua]

Steps to reproduce:
1. Create VM with default setting
2. open VMRC and mount iso ubuntu-19.10-server-amd64.iso(daily build Aug-26)
3. Power on VM, The iso is recognized and it will start to install guestOS
4. During the stage "Partition Disks", we choose the default "Guilded - use entire disk and set up LVM"
5. Failed to install grub during the installing process. please check attached "failed_install_grub.png"


relative test:
---------------------
1. No such issue if we choose "Guilded - use entire disk" in stage "Partition disks" with bios 
   (check attached partition_method.jpg)

2. No such issue with create VM with EFI firmware in ESXi

3. It's not related to CPU type: Intel/AMD

4. It's not related to disk controller: find the same issue when create
VM with LSI/PVSCSI controller in ESXi


Comments from Vmware's Dev:
    The error image says "Failed to install GRUB on /dev/mapper".

    I did not find anything unusual in the vmware.log. This looks like an ubuntu installer bug. 
    That path /dev/mapper seems incorrect. It should either be a device or a volume.

    I tried resuming the VM and saved debug logs from the guest. I have uploaded them to the bug. 
    Vishal and I looked at the syslog but there are no grub-install failure messages in it.


** Attachment removed: "failed_install_grub.png"
   https://bugs.launchpad.net/ubuntu/+source/base-installer/+bug/1843402/+attachment/5287709/+files/failed_install_grub.png

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https://bugs.launchpad.net/bugs/1843402

Title:
  Failed to install guestOS ubuntu-19.10-server-amd64.iso with bios in
  ESXi

Status in base-installer package in Ubuntu:
  Confirmed

Bug description:
  Summary:
  ---------------------
  Failed to install guestOS  ubuntu-19.10-server-amd64.iso(daily build Aug-26) with bios in ESXi

  If we choose the default partitioning method "Guilded - use entire
  disk and set up LVM" in stage "Partition disks"(check attached
  partition_method.jpg), it will failed to install grub in stage
  "Install Grub"(check attached failed_install_grub.png).

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