Bug 1608117

Created attachment 1470417 [details]
anaconda_issue_after_selected_san_disks

Description of problem:

I found anaconda can not remove automatically the missing vgs during installation, I tried to install system to a remote disks which existing partitions and vg/lv/pv with the same name. I wonder if anaconda can remove the missing UUID of vgs directly? so that the provision system can be completed for automation in beaker. Thank You!

Version-Release number of selected component (if applicable):
RHEL-7.6-20180724.0 Server x86_64
Anaconda 21.48.22.143-1

How reproducible:
often

Steps to Reproduce:
1. Install system on the FCoE LUN by manual.
   Or clone this beaker job https://beaker.engineering.redhat.com/recipes/5429455 
2. connect the system via vncviewer and select the san disk, issue occurs here.

Actual results:
anaconda-21.48.22.143-1 pop out a dialog here to remind user to rename the vg name with UUID. As below:
************ paste ****************
There is a problem with your existing storage configuration: multiple LVM volume groups with the same name (rhel_storageqe_60)

You must resolve this matter before the installation can proceed. There is a shell available for use which you can access by pressing ctrl-alt and then ctrl-b-2.

Once you have resolved the issue you can retry the storage scan. If you do not fix it you will have to exist the installer.

Rename one of the volume groups so the names as distinct.
Hint 1: vgrename accepts UUID in place of the old name.
Hint 2: You can get the VG UUIDs by running 'pvs -o +vg_uuid'
******************************

I entered the anaconda terminal as prompt, and checked the UUID of vgs names as below:
-----------------------------------
[anaconda root@storageqe-60 ~]# vgs -o +vg_uuid
  WARNING: Device for PV UmRrto-XwY1-s3hk-twJR-LXLg-Ys61-GVF20j not found or rejected by a filter.
  VG                #PV #LV #SN Attr   VSize    VFree VG UUID                               
  rhel_storageqe-60   1   3   0 wz--n-  277.87g    0  lYtrog-C7gv-iqj7-9E1A-wDph-qBfp-3ubEN1
  rhel_storageqe-60   2   3   0 wz-pn- <320.87g 4.00m YQADph-bSrb-jisC-V3HW-23gA-qyGR-ruLxde

As prompt, renaming vg actually doesn't work well. As below:
------------------------------------------
[anaconda root@storageqe-60 ~]# vgrename YQADph-bSrb-jisC-V3HW-23gA-qyGR-ruLxde  
rhel_st60
  Processing VG rhel_storageqe-60 because of matching UUID YQADph-bSrb-jisC-V3HW-23gA-qyGR-ruLxde
  WARNING: Device for PV UmRrto-XwY1-s3hk-twJR-LXLg-Ys61-GVF20j not found or rejected by a filter.
  Couldn't find device with uuid UmRrto-XwY1-s3hk-twJR-LXLg-Ys61-GVF20j.
  Cannot change VG rhel_storageqe-60 while PVs are missing.
  Consider vgreduce --removemissing.
  Cannot process volume group rhel_storageqe-60

I have to remove the missing vgs with the following command:
------------------------------------------
[anaconda root@storageqe-60 ~]# vgreduce --removemissing
  No command with matching syntax recognised.  Run 'vgreduce --help' for more information.
  Nearest similar command has syntax:
  vgreduce --removemissing VG
  Remove all missing PVs from a VG.

Rename again the vg name via UUID, it works. system can install in next step.
--------------------------------------------
rhel_st60 root@storageqe-60 ~]# vgrename lYtrog-C7gv-iqj7-9E1A-wDph-qBfp-3ubEN1  
  Processing VG rhel_storageqe-60 because of matching UUID lYtrog-C7gv-iqj7-9E1A-wDph-qBfp-3ubEN1
  Volume group "lYtrog-C7gv-iqj7-9E1A-wDph-qBfp-3ubEN1" successfully renamed to "rhel_st60"
[anaconda root@storageqe-60 ~]# vgs
  WARNING: Device for PV UmRrto-XwY1-s3hk-twJR-LXLg-Ys61-GVF20j not found or rejected by a filter.
  Couldn't find device with uuid UmRrto-XwY1-s3hk-twJR-LXLg-Ys61-GVF20j.
  VG                #PV #LV #SN Attr   VSize    VFree
  rhel_st60           1   3   0 wz--n-  277.87g    0 
  rhel_storageqe-60   2   3   0 wz-pn- <320.87g 4.00m

Expected results:
The non-existing LVM volume groups could be cleaned automatically, don't let user to rename it here, in fact vg rename doesn't work for the non-existing vg. The correct solution is "vgreduce --removemissing"

Additional info: