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

[Martin Husemann <martin%duskware.de@localhost>]

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

From: Martin Husemann <martin%duskware.de@localhost>
To: 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: Thu, 16 Aug 2018 20:49:50 +0200

 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 megabyte (or more) of zeros on the front of it.
 
 Why do you think this is wrong?
 
 Here is how the (known good) original looks:
 
 [/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
 
 
 Have you verified the checksum of the file you downloaded?
 [/pub/NetBSD/NetBSD-8.0/images] > fgrep NetBSD-8.0-i386.iso SHA512 
 SHA512 (NetBSD-8.0-i386.iso) = b08497b71a4031538a76ce8e5289de4047f55c4733457b3d1e84b905f4371dd622edf459bea663a528787eb2ee21b3775b8e05fe1563b1f1bbf72ddccd117262
 
 
 Martin