Public bug reported: Ubuntu 14.04LTS I'm experimenting with LVM mirroring feature.
1. In VM I have two physical disks: /dev/sda, /dev/sdb 2. I've created two PV (physical volumes) based on these disks: user:~$ sudo pvdisplay --- Physical volume --- PV Name /dev/sda1 VG Name vg PV Size 8.00 GiB / not usable 2.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 2047 Free PE 0 Allocated PE 2047 PV UUID Jswylr-H08n-PIw5-1GYR-HDYV-qL6h-2rFqMb --- Physical volume --- PV Name /dev/sdb1 VG Name vg PV Size 8.00 GiB / not usable 2.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 2047 Free PE 0 Allocated PE 2047 PV UUID YLRwrP-oKtY-wEMl-fHbG-ezfQ-GMPj-HI8iPe 3. Then I've created VG (volume group) and 2 mirrored (--type raid1) logical volumes (LVs) user:~$ sudo vgdisplay --- Volume group --- VG Name vg System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 8 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 0 Max PV 0 Cur PV 2 Act PV 2 VG Size 15.99 GiB PE Size 4.00 MiB Total PE 4094 Alloc PE / Size 4094 / 15.99 GiB Free PE / Size 0 / 0 VG UUID 1UTE5s-0NeB-V14m-nfG8-akwT-Qllu-bJUvX7 user:~$ sudo lvdisplay --- Logical volume --- LV Path /dev/vg/vg_root LV Name vg_root VG Name vg LV UUID pOO5di-Gg2X-KTcV-AHG6-RRoE-wt0N-v7brjJ LV Write Access read/write LV Creation host, time debian, 2015-05-20 08:01:24 +0000 LV Status available # open 0 LV Size 7.50 GiB Current LE 1920 Mirrored volumes 2 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:4 --- Logical volume --- LV Path /dev/vg/vg_swap LV Name vg_swap VG Name vg LV UUID u3PxrF-3MYJ-MgZ6-CXe3-qBOb-pJ3c-TdBecS LV Write Access read/write LV Creation host, time debian, 2015-05-20 08:01:33 +0000 LV Status available # open 0 LV Size 500.00 MiB Current LE 125 Mirrored volumes 2 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:9 4. Now we have 2 LVs available for filesystem creation and so on, and 8 hidden subLVs, representing parts of mirrored LVs user:~$ sudo lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert vg_root vg rwi-a-r--- 7.50g 100.00 [vg_root_rimage_0] vg iwi-aor--- 7.50g [vg_root_rimage_1] vg iwi-aor--- 7.50g [vg_root_rmeta_0] vg ewi-aor--- 4.00m [vg_root_rmeta_1] vg ewi-aor--- 4.00m vg_swap vg rwi-a-r--- 500.00m 100.00 [vg_swap_rimage_0] vg iwi-aor--- 500.00m [vg_swap_rimage_1] vg iwi-aor--- 500.00m [vg_swap_rmeta_0] vg ewi-aor--- 4.00m [vg_swap_rmeta_1] vg ewi-aor--- 4.00m 5. Now disk structure is prepared and we can start Ubuntu installation. Everything goes usual way, but at partitioning step we see: Guided partitioning Configure software RAID Configure the Logical Volume Manager Configure encrypted volumes Configure iSCSI volumes │ │ LVM VG vg, LV vg_root - 8.1 GB Linux device-mapper (raid) │ > #1 8.1 GB │ LVM VG vg, LV vg_root_rimage_0 - 8.1 GB Linux device-mapper (linear) │ > #1 8.1 GB │ LVM VG vg, LV vg_root_rimage_1 - 8.1 GB Linux device-mapper (linear) │ > #1 8.1 GB │ LVM VG vg, LV vg_root_rmeta_0 - 4.2 MB Linux device-mapper (linear) │ > #1 4.2 MB │ LVM VG vg, LV vg_root_rmeta_1 - 4.2 MB Linux device-mapper (linear) │ > #1 4.2 MB │ LVM VG vg, LV vg_swap - 524.3 MB Linux device-mapper (raid) │ > #1 524.3 MB │ LVM VG vg, LV vg_swap_rimage_0 - 524.3 MB Linux device-mapper (linear) │ > #1 524.3 MB │ LVM VG vg, LV vg_swap_rimage_1 - 524.3 MB Linux device-mapper (linear) │ > #1 524.3 MB │ LVM VG vg, LV vg_swap_rmeta_0 - 4.2 MB Linux device-mapper (linear) │ > #1 4.2 MB │ LVM VG vg, LV vg_swap_rmeta_1 - 4.2 MB Linux device-mapper (linear) │ > #1 4.2 MB │ SCSI3 (0,0,0) (sda) - 8.6 GB VMware, VMware Virtual S │ > #1 primary 8.6 GB │ SCSI3 (0,4,0) (sdb) - 8.6 GB VMware, VMware Virtual S │ > #1 primary 8.6 GB As we see all the LVs are enlisted: mirrored LVs and subLVs that contained inside. It doesn't affect installation process but I think that subLVs at thus step should be hidden. ** Affects: ubuntu Importance: Undecided Status: New ** Tags: lvm ** Package changed: grub-installer (Ubuntu) => ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1456936 Title: At partitioning step installer shows hidden logical volumes created with LVM mirroring feature To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1456936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs