Re: install/53531: The ISO files you have for download are bad. They have a megabyte of zeros on the front.

[Rick Rodman <richard.rodman%gmail.com@localhost>]

The following reply was made to PR install/53531; it has been noted by GNATS.

From: Rick Rodman <richard.rodman%gmail.com@localhost>
To: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%NetBSD.org@localhost>
Cc: 
Subject: Re: install/53531: The ISO files you have for download are bad. They have a megabyte of zeros on the front.
Date: Sat, 18 Aug 2018 16:11:51 -0400

 Hmm. I'll try burning the 8.0 image then. The 7.x image I downloaded a coupl=
 e of months ago produced only coasters, and the other iso's I looked at all h=
 ad nonzero bytes at the beginning. Thanks for replying so quickly! NetBSD th=
 e truly portable OS!
 
 Rick
 
 I have no internet, so it may be a week or more before I get back to you.
 
 > On Aug 16, 2018, at 2:50 PM, Martin Husemann <martin%duskware.de@localhost> wrote:
 >=20
 > The following reply was made to PR install/53531; it has been noted by GNA=
 TS.
 >=20
 > From: Martin Husemann <martin%duskware.de@localhost>
 > To: gnats-bugs%NetBSD.org@localhost
 > Cc:=20
 > Subject: Re: install/53531: The ISO files you have for download are bad. T=
 hey
 > have a megabyte of zeros on the front.
 > Date: Thu, 16 Aug 2018 20:49:50 +0200
 >=20
 >> On Thu, Aug 16, 2018 at 05:50:00PM +0000, richard.rodman%gmail.com@localhost wrote:=
 
 >> click on the ISO link. The file downloads pretty fast, which is good, and=
  the size matches (around 700MB), but the file is unusable because it has a m=
 egabyte (or more) of zeros on the front of it.
 >=20
 > Why do you think this is wrong?
 >=20
 > Here is how the (known good) original looks:
 >=20
 > [/pub/NetBSD/NetBSD-8.0/images] > ls -lh NetBSD-8.0-i386.iso
 > -r--r--r--  2 builds  builds  677M Jul 18 00:26 NetBSD-8.0-i386.iso
 > [/pub/NetBSD/NetBSD-8.0/images] > hexdump NetBSD-8.0-i386.iso | head -15
 > 0000000 0000 0000 0000 0000 0000 0000 0000 0000
 > *
 > 0008000 4301 3044 3130 0001 654e 4274 4453 2020
 > 0008010 2020 2020 2020 2020 2020 2020 2020 2020
 > 0008020 2020 2020 2020 2020 454e 4254 4453 385f
 > 0008030 2030 2020 2020 2020 2020 2020 2020 2020
 > 0008040 2020 2020 2020 2020 0000 0000 0000 0000
 > 0008050 492e 0005 0500 2e49 0000 0000 0000 0000
 > 0008060 0000 0000 0000 0000 0000 0000 0000 0000
 > 0008070 0000 0000 0000 0000 0001 0100 0001 0100
 > 0008080 0800 0008 a63a 0000 0000 3aa6 0018 0000
 > 0008090 0000 0000 0000 2d00 0000 0000 0022 0042
 > 00080a0 0000 0000 4200 1000 0000 0000 0010 3337
 > 00080b0 3636 6133 0234 0000 0001 0100 0001 2020
 > 00080c0 2020 2020 2020 2020 2020 2020 2020 2020
 >=20
 >=20
 > Have you verified the checksum of the file you downloaded?
 > [/pub/NetBSD/NetBSD-8.0/images] > fgrep NetBSD-8.0-i386.iso SHA512=20
 > SHA512 (NetBSD-8.0-i386.iso) =3D b08497b71a4031538a76ce8e5289de4047f55c473=
 3457b3d1e84b905f4371dd622edf459bea663a528787eb2ee21b3775b8e05fe1563b1f1bbf72=
 ddccd117262
 >=20
 >=20
 > Martin
 >=20