NetBSD Problem Report #48117

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Date: Tue, 13 Aug 2013 02:05:02 +0000 (UTC)
From: dhgutteridge@sympatico.ca
Reply-To: dhgutteridge@sympatico.ca
To: gnats-bugs@NetBSD.org
Subject: disklabel(8) and mount_msdos(8) on evbarm don't work with USB pen drives that work on other architectures
X-Send-Pr-Version: www-1.0

>Number:         48117
>Category:       port-evbarm
>Synopsis:       disklabel(8) and mount_msdos(8) on evbarm don't work with USB pen drives that work on other architectures
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-evbarm-maintainer
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Aug 13 02:10:00 +0000 2013
>Closed-Date:    Sun Dec 23 01:37:29 +0000 2018
>Last-Modified:  Sun Dec 23 01:37:29 +0000 2018
>Originator:     David H. Gutteridge
>Release:        6.99.23
>Organization:
>Environment:
(I don't have access to run "uname -a" right now, but it's 6.99.23/evbarm from a July 31st releng build.)
>Description:
If I try to mount a USB pen drive with an FAT12 or FAT16 file system
on a Raspberry Pi running 6.99.23/evbarm, the actual partition with
data on it isn't being recognized. The same examples work on other
architectures I've tried (amd64, i386, macppc).

Disklabel output on amd64:

# /dev/rsd1d:
type: SCSI
disk: Store 'n' Go    
label: fictitious
flags: removable
bytes/sector: 512
sectors/track: 32
tracks/cylinder: 16
sectors/cylinder: 512
cylinders: 980
total sectors: 501760
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# microseconds
track-to-track seek: 0	# microseconds
drivedata: 0 

5 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 d:    501760         0     unused      0     0        # (Cyl.      0 -    979)
 e:    501728        32      MSDOS                     # (Cyl.      0*-    979)

Disklabel output on evbarm:

# /dev/rsd0c:
type: SCSI
disk: Store 'n' Go    
label: fictitious
flags: removable
bytes/sector: 512
sectors/track: 32
tracks/cylinder: 16
sectors/cylinder: 512
cylinders: 980
total sectors: 501760
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# microseconds
track-to-track seek: 0	# microseconds
drivedata: 0 

3 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 c:    501760         0     unused      0     0        # (Cyl.      0 -    979)

>How-To-Repeat:
Try mounting a USB pen drive with an FAT partition.
>Fix:
None known.

>Release-Note:

>Audit-Trail:
From: David Holland <dholland-bugs@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-evbarm/48117: disklabel(8) and mount_msdos(8) on evbarm
 don't work with USB pen drives that work on other architectures
Date: Sun, 13 Jul 2014 05:08:10 +0000

 On Tue, Aug 13, 2013 at 02:10:00AM +0000, dhgutteridge@sympatico.ca wrote:
  > If I try to mount a USB pen drive with an FAT12 or FAT16 file system
  > on a Raspberry Pi running 6.99.23/evbarm, the actual partition with
  > data on it isn't being recognized. The same examples work on other
  > architectures I've tried (amd64, i386, macppc).

 Is this related to 47463? (Or, the fix for 47463?)

 -- 
 David A. Holland
 dholland@netbsd.org

From: "David H. Gutteridge" <dhgutteridge@sympatico.ca>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-evbarm/48117: disklabel(8) and mount_msdos(8) on evbarm don't work with USB pen drives that work on other architectures
Date: Sun, 13 Jul 2014 23:07:25 -0400

 On 2014-07-13, at 1:10 AM, David Holland wrote:
 > The following reply was made to PR port-evbarm/48117; it has been =
 noted by GNATS.
 >=20
 > From: David Holland <dholland-bugs@netbsd.org>
 > To: gnats-bugs@NetBSD.org
 > Cc:=20
 > Subject: Re: port-evbarm/48117: disklabel(8) and mount_msdos(8) on =
 evbarm
 > don't work with USB pen drives that work on other architectures
 > Date: Sun, 13 Jul 2014 05:08:10 +0000
 >=20
 > On Tue, Aug 13, 2013 at 02:10:00AM +0000, dhgutteridge@sympatico.ca =
 wrote:
 >> If I try to mount a USB pen drive with an FAT12 or FAT16 file system
 >> on a Raspberry Pi running 6.99.23/evbarm, the actual partition with
 >> data on it isn't being recognized. The same examples work on other
 >> architectures I've tried (amd64, i386, macppc).
 >=20
 > Is this related to 47463? (Or, the fix for 47463?)

 It presumably is: from looking at the other PR, it seems related. The
 change that was committed doesn't address my problem. I just tested
 with a kernel and userland from July 8th, and the problem still
 persists. There's a difference now in terms of what disklabel(8)
 reports, but it's not an improvement. For some reason, it now makes
 reference to a 4.2BSD fstype entry, which is not present on the
 drive.

 # /dev/rsd0c:
 type: SCSI
 disk: Store 'n' Go   =20
 label: fictitious
 flags: removable
 bytes/sector: 512
 sectors/track: 32
 tracks/cylinder: 16
 sectors/cylinder: 512
 cylinders: 980
 total sectors: 501760
 rpm: 3600
 interleave: 1
 trackskew: 0
 cylinderskew: 0
 headswitch: 0           # microseconds
 track-to-track seek: 0  # microseconds
 drivedata: 0=20

 3 partitions:
 #        size    offset     fstype [fsize bsize cpg/sgs]
  a:    501760         0     4.2BSD      0     0     0  # (Cyl.      0 -  =
   979)
  c:    501760         0     unused      0     0        # (Cyl.      0 -  =
   979)
 disklabel: boot block size 0
 disklabel: super block size 0

 If you want to close this PR and track against the other, that's fine
 with me.

 Dave

From: David H.Gutteridge <dhgutteridge@sympatico.ca>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-evbarm/48117: disklabel(8) and mount_msdos(8) on evbarm don't work with USB pen drives that work on other architectures
Date: Sun, 13 Jul 2014 23:25:57 -0400

 On 2014-07-13, at 11:07 PM, David H. Gutteridge wrote:
 > On 2014-07-13, at 1:10 AM, David Holland wrote:
 >> The following reply was made to PR port-evbarm/48117; it has been =
 noted by GNATS.
 >>=20
 >> From: David Holland <dholland-bugs@netbsd.org>
 >> To: gnats-bugs@NetBSD.org
 >> Cc:=20
 >> Subject: Re: port-evbarm/48117: disklabel(8) and mount_msdos(8) on =
 evbarm
 >> don't work with USB pen drives that work on other architectures
 >> Date: Sun, 13 Jul 2014 05:08:10 +0000
 >>=20
 >> On Tue, Aug 13, 2013 at 02:10:00AM +0000, dhgutteridge@sympatico.ca =
 wrote:
 >>> If I try to mount a USB pen drive with an FAT12 or FAT16 file system
 >>> on a Raspberry Pi running 6.99.23/evbarm, the actual partition with
 >>> data on it isn't being recognized. The same examples work on other
 >>> architectures I've tried (amd64, i386, macppc).
 >>=20
 >> Is this related to 47463? (Or, the fix for 47463?)
 >=20
 > It presumably is: from looking at the other PR, it seems related. The
 > change that was committed doesn't address my problem. I just tested
 > with a kernel and userland from July 8th, and the problem still
 > persists. There's a difference now in terms of what disklabel(8)
 > reports, but it's not an improvement. For some reason, it now makes
 > reference to a 4.2BSD fstype entry, which is not present on the
 > drive.
 >=20
 > # /dev/rsd0c:
 > type: SCSI
 > disk: Store 'n' Go   =20
 > label: fictitious
 > flags: removable
 > bytes/sector: 512
 > sectors/track: 32
 > tracks/cylinder: 16
 > sectors/cylinder: 512
 > cylinders: 980
 > total sectors: 501760
 > rpm: 3600
 > interleave: 1
 > trackskew: 0
 > cylinderskew: 0
 > headswitch: 0           # microseconds
 > track-to-track seek: 0  # microseconds
 > drivedata: 0=20
 >=20
 > 3 partitions:
 > #        size    offset     fstype [fsize bsize cpg/sgs]
 > a:    501760         0     4.2BSD      0     0     0  # (Cyl.      0 - =
    979)
 > c:    501760         0     unused      0     0        # (Cyl.      0 - =
    979)
 > disklabel: boot block size 0
 > disklabel: super block size 0
 >=20
 > If you want to close this PR and track against the other, that's fine
 > with me.
 >=20
 > Dave

 I should add, for comparison, fdisk(8) does show correct information:

 Disk: /dev/rsd0c
 NetBSD disklabel disk geometry:
 cylinders: 980, heads: 16, sectors/track: 32 (512 sectors/cylinder)
 total sectors: 501760, bytes/sector: 512

 BIOS disk geometry:
 cylinders: 980, heads: 16, sectors/track: 32 (512 sectors/cylinder)
 total sectors: 501760

 Partitions aligned to 2048 sector boundaries, offset 32

 Partition table:
 0: DOS (16-bit FAT) - LBA (sysid 14)
     start 32, size 501728 (245 MB, Cyls 0-979), Active
 1: <UNUSED>
 2: <UNUSED>
 3: <UNUSED>
 First active partition: 0
 Drive serial number: 2759040381 (0xa4739d7d)

 Dave

From: "David H. Gutteridge" <david@gutteridge.ca>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-evbarm/48117: disklabel(8) and mount_msdos(8) on evbarm
 don't work with USB pen drives that work on other architectures
Date: Tue, 02 Oct 2018 23:12:25 -0400

 I cannot reproduce this issue with 8.0_STABLE or 8.99.25 kernels (in
 both cases with a 8.0_STABLE userland), so this can be closed, from my
 perspective. (I'm no longer able to test with 7.x, as I've upgraded
 past it.)

 Thanks,

 Dave


State-Changed-From-To: open->closed
State-Changed-By: gutteridge@NetBSD.org
State-Changed-When: Sun, 23 Dec 2018 01:37:29 +0000
State-Changed-Why:
Issue is resolved in recent releases, okay to close.

>Unformatted:

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