Bug 131398

Summary: dosfsck, mkdosfs conflicting results
Product: [Fedora] Fedora Reporter: Mace Moneta <moneta.mace>
Component: dosfstoolsAssignee: Peter Vrabec <pvrabec>
Status: CLOSED WORKSFORME QA Contact: Ben Levenson <benl>
Severity: medium Docs Contact:
Priority: medium    
Version: 2CC: barryn, moneta.mace
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Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2004-10-11 09:00:00 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Mace Moneta 2004-08-31 23:17:45 UTC 
Description of problem:

dosfsck reports that newly created filesystem (mkdosfs) is in error. 
If dosfsck is unusable, it should be removed or disabled.  If mkdosfs
is creating bad filesystems, it should be removed or disabled.

Version-Release number of selected component (if applicable):

dosfstools-2.8-12

How reproducible:

Create a dos filesystem on a device, then check it.

Steps to Reproduce:
1.mkdosfs a partition
2.dosfsck the partition
3.observe error
  
Actual results:

Error

Expected results:

No error

Additional info:

Sample run:

# mkdosfs /dev/sdf2
mkdosfs 2.8 (28 Feb 2001)

# dosfsck /dev/sdf2
dosfsck 2.8, 28 Feb 2001, FAT32, LFN
Warning: FAT32 support is still ALPHA.
Cluster 608765 out of range (4870146 > 1217333). Setting to EOF.
/
  Contains a free cluster (2). Assuming EOF.
FAT32 root dir starts with a bad cluster!
Comment 1 Barry K. Nathan 2004-09-01 11:29:23 UTC 
If you happen to have a copy of the appropriate software, you could
try scanning a mkdosfs'd filesystem with chkdsk (Win2K/XP) or scandisk
(Win98/ME/MS-DOS 7.x). Or you could use Windows or MS-DOS 7.x to
format a filesystem, then check it with dosfsck.

BTW, it looks like your bug report fails to specify how reproducible
the bug is.
Comment 2 Mace Moneta 2004-09-02 04:35:13 UTC 
Sorry, it's 100% reproducible (I was testing with a 20GB firewire dive).  

I don't have access to a real Windows system that can access the
Firewire drive (the reason I was using mkdosfs/dosfsck), so I can't
check to see which is in error.