NetBSD Problem Report #54871

From www@netbsd.org  Sat Jan 18 15:07:13 2020
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Message-Id: <20200118150711.E85B37A1AE@mollari.NetBSD.org>
Date: Sat, 18 Jan 2020 15:07:12 +0000 (UTC)
From: guest01@vp.pl
Reply-To: guest01@vp.pl
To: gnats-bugs@NetBSD.org
Subject: No oportunity to edit MBR partitions table for USB stick on system installation
X-Send-Pr-Version: www-1.0

>Number:         54871
>Category:       install
>Synopsis:       No oportunity to edit MBR partitions table for USB stick on system installation
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jan 18 15:10:00 +0000 2020
>Last-Modified:  Sat Jan 18 22:30:01 +0000 2020
>Originator:     guest01
>Release:        http://nycdn.netbsd.org/pub/NetBSD-daily/netbsd-9/202001160600Z/images/NetBSD-9.0_RC1-amd64-install.img.gz
>Organization:
-
>Environment:
NetBSD  9.0_RC1 NetBSD 9.0_RC1 (GENERIC) #0: Thu Jan  9 17:18:43 UTC 2020  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/amd64/compile/GENERIC amd64
>Description:
When you install NetBSD 9.0_RC1 on USB stick and you have set geometry there is no oportunity to edit MBR partiton table. Sysinst goes to setup NetBSD partitions.
NetBSD 8.0 allows edit MBR partion table for USB stick.
>How-To-Repeat:
Boot computer with NetBSD 9.0_RC1 installation image and then select:
1. Install NetBSD to hard disk
2. Shall we continue? Yes
3. On which disk do you want to install NetBSD?
   b: sd0 (929M)
4. Sysinst could not automatically determine the BIOS geoemtry of the disk.
   The phisical geometry is 471 cylinders 16 sectors 63 heads.
   You will be prompted for the geometry. Please enter the number of sectors per track (maximum 63) and the number of heads (maximum 256) that the BIOS uses to access the disk. The number of cylinders will be calculated from the disk size.
   sectors [63]: enter
   heads   [16]: enter

There is not oportunity to edit MBR partition table here which was in NetBSD 8.0. Next screen will be about NetBSD partitions.
>Fix:

>Audit-Trail:
From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: install/54871: No oportunity to edit MBR partitions table for
 USB stick on system installation
Date: Sat, 18 Jan 2020 16:25:19 +0100

 I guess this means the stick had a disklabel already, can you please
 verify? The output of

 	fdisk sd0
 	disklabel -r sd0

 give the needed hints.

 Martin

From: guest01@vp.pl
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: Re: install/54871: No oportunity to edit MBR partitions table for
	USB stick on system installation
Date: Sat, 18 Jan 2020 16:49:47 +0100

 Result of fdisk and disklabel the same as for #54870. The same USB stick.
 When I try install NebBSD 8.0 I do "Use the entire disk" option and then "W=
 hole disk" is 929. It is equal to 929M what is see when I select on which d=
 isk installation I want.

 guest01

 W dniu 2020-01-18 16:30:07 u=C5=BCytkownik Martin Husemann <martin@duskware=
 .de> napisa=C5=82:
 > The following reply was made to PR install/54871; it has been noted by GN=
 ATS.

 From: Martin Husemann <martin@duskware.de>
 To: gnats-bugs@netbsd.org
 Cc: =

 Subject: Re: install/54871: No oportunity to edit MBR partitions table for
  USB stick on system installation
 Date: Sat, 18 Jan 2020 16:25:19 +0100

  I guess this means the stick had a disklabel already, can you please
  verify? The output of
  =

  	fdisk sd0
  	disklabel -r sd0
  =

  give the needed hints.
  =

  Martin
  =


From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: Re: install/54871: No oportunity to edit MBR partitions table
 for USB stick on system installation
Date: Sat, 18 Jan 2020 20:16:38 +0100

 On Sat, Jan 18, 2020 at 05:15:01PM +0000, guest01@vp.pl wrote:
 >  Result of fdisk and disklabel the same as for #54870. The same USB stick.
 >  When I try install NebBSD 8.0 I do "Use the entire disk" option and then "W=
 >  hole disk" is 929. It is equal to 929M what is see when I select on which d=
 >  isk installation I want.

 I get the same options as with the 8.0 installer when I try to reproduce it;
 must be something specific to this usb stick that confuses it.

 Martin

From: guest01@vp.pl
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: Re: Re: install/54871: No oportunity to edit MBR partitions table
	for USB stick on system installation
Date: Sat, 18 Jan 2020 23:26:13 +0100

 Second test

 I did procedure "Initializing and using USB flash drives" from NetBSD Guide=
  to create MSDOS partition on USB stick.
 Then I started NetBSD 8.0 installation but the installation finished with m=
 essage "Rewrite of MBR failed. I can't continue."
 Then I started NetBSD 9.0_RC1 installation but there still is size of USB s=
 tick 232 MB and there are no screens to set MBR partitions.
 Results of fdisk and disklabel at the end.

 Details bellow:

 Initializing and using USB flash drives
 1. dd if=3D/dev/zero of=3D/dev/rsd0d bs=3D1m count=3D1
 2. fdisk -au sd0
    Do you want to change our idea of what BIOS thinks? [n]
    Which partition do you want to change?: [none]0
    sysid: [0..255 default: 169]11
    Do you want to change the active partition? [n]y
    active partition: [0..4 default: 4]0
    Are you happy with this choice? [n]y
    Should we write new partition table? [n]y
 3. newfs_msdos /dev/rsd0e

 Installation of NetBSD 8.0
 1. Install NetBSD to hard disk
 2. Shall we continue? Yes
 3. sd0 (929M, SONY WALKMAN)
 4. The phisical geometry is 471 cylinders 16 sectors 63 heads
    sectors [63]:Enter
    heads   [16]:Enter
 5. Use the entire disk
 6. Do you want to install the NetBSD bootcode? Yes
 7. Set sizes of NetBSD partitions
 8. a:
    Size for / in MB?[33+]:800
    b:
    Size for swap in MB? [893]:0+
    x: Accept partition sizes
 9. Partition sizes ok
 10. Please enter a name for your NetBSD disk [WALKMAN   ]:Enter
 11. Shall we continue? Yes
     Rewrite of MBR failed. I can't continue.
     Hit enter to continue

 Installatin of NetBSD 9.0_RC1
 1. Install NetBSD to hard disk
 2. Shall we continue? Yes
 3. On which disk do you want to install NetBSD?
    b: sd0 (929M)
 4. The phisical geometry is 471 cylinders 16 sectors 63 heads
    sectors [63]:Enter
    heads   [16]:Enter
 5. Set sizes of NetBSD partitions
    i: Change input units (sectors/cylinders/MB/GB)
    b: Megabytes
    a:
    Would you like to delete this partition and continue ?
    a: Yes
    Size for / in MB?[0]:200
    b:
    Size for in MB?[232]:0+
 8. x: Go on.
 9. Partition sizes ok
 10. Shall we continue? Yes
 11. Selected bootblock: BIOS console
     x: Continue
 12. x: Abandon installation

 Result of fdisk sd0
 Disk: /dev/rsd0
 NetBSD disklabel disk geometry:
 cylinders: 471, heads: 16, sectors/track: 63 (1008 sectors/cylinder)
 total sectors: 475648, bytes/sector: 2048

 BIOS disk geometry:
 cylinders: 472, heads: 16, sectors/track: 63 (1008 sectors/cylinder)
 total sectors: 475648

 Partitions aligned to 1008 sector boundaries, offset 63

 Partition table:
 0: Primary DOS with 32 bit FAT (sysid 11)
     start 63, size 475585 (929 MB, Cyls 0-471/13/61), Active
         PBR is not bootable: Bad magic number (0x0000)
 1: <UNUSED>
 2: <UNUSED>
 3: <UNUSED>
 First active partition: 0


 Result of disklabel sd0
 # /dev/rsd0:
 type: unknown
 disk: WALKMAN        =

 label: fictitious
 flags:
 bytes/sector: 2048
 sectors/track: 63
 tracks/cylinder: 16
 sectors/cylinder: 1008
 cylinders: 471
 total sectors: 475648
 rpm: 3600
 interleave: 1
 trackskew: 0
 cylinderskew: 0
 headswitch: 0           # microseconds
 track-to-track seek: 0  # microseconds
 drivedata: 0 =


 4 partitions:
 #        size    offset     fstype [fsize bsize cpg/sgs]
  a:    409600         0     4.2BSD      0     0     0  # (Cyl.      0 -    =
 406*)
  c:    475648         0     unused      0     0        # (Cyl.      0 -    =
 471*)
  d:    475648         0     unused      0     0        # (Cyl.      0 -    =
 471*)

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