Bug 15664

Summary:	"Erase disk" option fails to delete partitions when there's RAID/LVM
Product:	Mageia	Reporter:	Thierry Vignaud <thierry.vignaud>
Component:	Installer	Assignee:	Mageia tools maintainers <mageiatools>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	Normal	CC:	alejandro.anv, marja11, pterjan
Version:	Cauldron
Target Milestone:	---
Hardware:	All
OS:	Linux
Whiteboard:
Source RPM:	drakx-installer-stage2	CVE:
Status comment:
Attachments:	try harder to erase disk with RAID/LVM

Description Thierry Vignaud 2015-04-09 14:49:25 CEST

This is a very old bug: "Erase disk" option in partitionning wizard fails to delete partitions when there's RAID and/or LVM b/c it doesn't destroy them first and thus the kernel complains they're busy

Reproducible: 

Steps to Reproduce:

Thierry Vignaud 2015-04-09 14:49:35 CEST

CC: (none) => pterjan

Comment 1 Thierry Vignaud 2015-04-13 00:20:38 CEST

Created attachment 6250 [details]
try harder to erase disk with RAID/LVM

still fails with "Remove the logical volumes first" because RemoveFromLVM()
calls lvm::vg_destroy() w/o removing the LVs first

If one manually run lvremove, one can go on.


Likewise for RAIDs, it fails to remove partitions belonging to RAID (busty) despite raid::removeDisk() having called mdadm --stop

Running mdadm --zero-superblock on each member is needed...

Comment 2 Thierry Vignaud 2015-04-13 00:21:31 CEST

Running mdadm --remove on the whole array could maybe do the trick too.

Comment 3 Thierry Vignaud 2015-04-13 00:22:13 CEST

We should maybe display warnings asking for confirmation before killing everything though

Comment 4 Thierry Vignaud 2015-04-16 14:45:56 CEST

*** Bug 15705 has been marked as a duplicate of this bug. ***

CC: (none) => alejandro.anv

Comment 5 Thierry Vignaud 2015-04-16 14:48:18 CEST

As note in bug #15705, that also happen when one manually delete a RAID.
We should probably run "mdadm --remove" after "mdadm --stop".

Comment 6 Alejandro Vargas 2015-04-16 14:49:28 CEST

I think you should remove the raid when you remove the last disk on it...

Samuel Verschelde 2015-05-31 22:42:21 CEST

Whiteboard: (none) => FOR_ERRATA

Marja Van Waes 2016-10-09 11:26:45 CEST

CC: (none) => marja11
Assignee: bugsquad => mageiatools

Samuel Verschelde 2016-10-18 13:11:36 CEST

Whiteboard: FOR_ERRATA => (none)