[Bug 1808854] [NEW] installation fails on btrfs root partition (multiple-device)

[Miroslav Spehar]

Public bug reported:

two drives in latitude e7440 -> idea is to split each drive into 3
paritions 1gb, 25gb and rest (~90gb). two 25gb partitions would be made
into one 50gb btrfs stripe filesystem and used as root. two ~90gb
partitions would be made into a 180gb btrfs stripe filesystem and used
as home.

partitions were made manually using fdisk. btrfs was also made manually.
ubiquity was then used only to select to which parition those should be
mounted to.

details below:

ubuntu at ubuntu:~$ sudo fdisk -l /dev/sda
Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 9E6AAECF-AD43-924D-AB16-1277434C966A

Device        Start       End   Sectors  Size Type
/dev/sda1      2048   2099199   2097152    1G EFI System
/dev/sda2   2099200  54527999  52428800   25G Linux filesystem
/dev/sda3  54528000 250069646 195541647 93.2G Linux filesystem

ubuntu at ubuntu:~$ sudo fdisk -l /dev/sdb
Disk /dev/sdb: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 84039022-7032-F24C-A7BA-79A078262C10

Device        Start       End   Sectors  Size Type
/dev/sdb1      2048   2099199   2097152    1G Linux filesystem
/dev/sdb2   2099200  54527999  52428800   25G Linux filesystem
/dev/sdb3  54528000 250069646 195541647 93.2G Linux filesystem

ubuntu at ubuntu:~$ sudo btrfs filesystem show
Label: none  uuid: 239e7ebd-bdb5-4434-9495-876c626f3137
	Total devices 2 FS bytes used 6.13GiB
	devid    1 size 25.00GiB used 5.01GiB path /dev/sda2
	devid    2 size 25.00GiB used 5.01GiB path /dev/sdb2

Label: none  uuid: e6e0e6ea-39d9-43a3-940c-30f33a12a881
	Total devices 2 FS bytes used 916.00KiB
	devid    1 size 93.24GiB used 2.01GiB path /dev/sda3
	devid    2 size 93.24GiB used 2.01GiB path /dev/sdb3

ubuntu at ubuntu:~$

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: ubiquity 18.10.12
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
CasperVersion: 1.399
Date: Mon Dec 17 19:48:05 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug cosmic ubiquity-18.10.12 ubuntu

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https://bugs.launchpad.net/bugs/1808854

Title:
  installation fails on btrfs root partition (multiple-device)

Status in grub-installer package in Ubuntu:
  New

Bug description:
  two drives in latitude e7440 -> idea is to split each drive into 3
  paritions 1gb, 25gb and rest (~90gb). two 25gb partitions would be
  made into one 50gb btrfs stripe filesystem and used as root. two ~90gb
  partitions would be made into a 180gb btrfs stripe filesystem and used
  as home.

  partitions were made manually using fdisk. btrfs was also made
  manually. ubiquity was then used only to select to which parition
  those should be mounted to.

  details below:

  ubuntu at ubuntu:~$ sudo fdisk -l /dev/sda
  Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
  Units: sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disklabel type: gpt
  Disk identifier: 9E6AAECF-AD43-924D-AB16-1277434C966A

  Device        Start       End   Sectors  Size Type
  /dev/sda1      2048   2099199   2097152    1G EFI System
  /dev/sda2   2099200  54527999  52428800   25G Linux filesystem
  /dev/sda3  54528000 250069646 195541647 93.2G Linux filesystem

  ubuntu at ubuntu:~$ sudo fdisk -l /dev/sdb
  Disk /dev/sdb: 119.2 GiB, 128035676160 bytes, 250069680 sectors
  Units: sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disklabel type: gpt
  Disk identifier: 84039022-7032-F24C-A7BA-79A078262C10

  Device        Start       End   Sectors  Size Type
  /dev/sdb1      2048   2099199   2097152    1G Linux filesystem
  /dev/sdb2   2099200  54527999  52428800   25G Linux filesystem
  /dev/sdb3  54528000 250069646 195541647 93.2G Linux filesystem

  ubuntu at ubuntu:~$ sudo btrfs filesystem show
  Label: none  uuid: 239e7ebd-bdb5-4434-9495-876c626f3137
  	Total devices 2 FS bytes used 6.13GiB
  	devid    1 size 25.00GiB used 5.01GiB path /dev/sda2
  	devid    2 size 25.00GiB used 5.01GiB path /dev/sdb2

  Label: none  uuid: e6e0e6ea-39d9-43a3-940c-30f33a12a881
  	Total devices 2 FS bytes used 916.00KiB
  	devid    1 size 93.24GiB used 2.01GiB path /dev/sda3
  	devid    2 size 93.24GiB used 2.01GiB path /dev/sdb3

  ubuntu at ubuntu:~$

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubiquity 18.10.12
  ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
  Uname: Linux 4.18.0-10-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13
  Architecture: amd64
  CasperVersion: 1.399
  Date: Mon Dec 17 19:48:05 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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