Bug 483085

Summary:	dosfslabel fails to read/write label on device-mapper device
Product:	[Fedora] Fedora	Reporter:	Stepan Kasal <kasal>
Component:	dosfstools	Assignee:	Stepan Kasal <kasal>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	rawhide	CC:	kasal, lvm-team
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	249067	Environment:
Last Closed:	2009-01-29 17:29:02 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Stepan Kasal 2009-01-29 17:00:51 UTC

+++ This bug was initially created as a clone of Bug #249067 +++
Description of problem:
  dosfslabel fails to read/write label on device-mapper device

How reproducible:
  Always

Steps to Reproduce:
  1. Create DM device (multipath, dmraid, etc.)
  2. Execute dosfslabel to write a label on it

Actual results:
  # dosfslabel /dev/mapper/200301384044c0009p1 a
  Invalid disk format in boot sector.
  # dosfslabel /dev/mapper/200301384044c0009p1 
  Invalid disk format in boot sector.

Expected results:
  # dosfslabel /dev/mapper/200301384044c0009p1 a
  # dosfslabel /dev/mapper/200301384044c0009p1 
  a          
---

I was able to reproduce the bug on current rawhide with the shell script:
Created an attachment (id=159672) reproducer shell script

Comment 1 Stepan Kasal 2009-01-29 17:29:02 UTC

The bug is no longer present in dosfstools-3.0.1-1 (the previous reproduction was with dosfstools 2.11).