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Old 06-07-2011, 01:27 AM
Bret Busby
 
Default - unexpected issue with iso images

Hello.

First thing - I think that it would be a good idea for each version to
have its own mailing list, with message prepending (in a form such as
the one above), so that users can easily identify messages that apply to
each user's particular appropriate version(s).


Second thing (and, the purpose of this message), is an unexpected issue
relating to the cd/DVD iso images.


I am running Debian 5, on my computers that are running Debian.

I have been intending to replace Debian 5 with Debian 6, when and where
I can, and install Debian 6 on a computer that Debian 5 won't install on
(the computer is apparently too new, or has optical drive unknown to
Debian 5).


I had previously downloaded and tried the netinst image for Debian 6.0,
and the imgae did not work, I assume, due to lack of hardware drivers,
which are now apparenetly (if I understand correctly) ommitted from
Debian, fron Debian 6 onward.


So, I reasoned that using Debian 6 DVD iso images should include all
appropriate drivers for installing the operating system.


So, I tried to download the new Debian 6.0.1 DVD iso images (one of each
of the 32 bit and the "amd64" 64 bit versions).


However, after taking about a day or so, for the first download attempt,
using gwget, as per the instructions on the web page at
http://www.debian.org/CD/http-ftp/ ;


"
Please do not download CD or DVD images with your web browser the way
you download other files! The reason is that if your download aborts,
most browsers do not allow you to resume from the point where it failed.


Instead, please use a tool that supports resuming. Under Unix, you can
use aria2, wxDownload Fast or (on the command line) wget -c URL or curl
-C - -L -O URL. Under Windows, you might want to try Free Download
Manager. Under Mac OS, have a look at CocoaWget. You can also look at a
comparison of download managers and choose a program that you like.

"

the downloads (I was downloading the 32 bit and 64 bit images at
the same time, as permitted by gwget) crashed, with the error message
"Unknown error"


So, I tried waiting, and the "Resume all" option, for a few hours, but
it kept retunring the same message.


So, I closed the gwget application, and opened a new instance of it,
and, repoeatedly got the same error messsage, with also "Not connected"
and "Not running", showing in the sequence of displayued error messages.


Then, I tried downloading the 64 bit version, using the http method, in
a web browser (iceape) window.


The download was ten times as fast, but, after a few hours, crashed, at
4.0GB (and it crashed the web browser.


I tried that a couple of times, with the same result.

I then tried to download the 64 bit version, using wget, at the command
line, with one of the partial downloads as the target file.


The response was:

"
wget -c
http://cdimage.debian.org/debian-cd/6.0.1a/amd64/iso-dvd/debian-6.0.1a-amd64-DVD-1.iso
--2011-06-07 02:52:14--
http://cdimage.debian.org/debian-cd/6.0.1a/amd64/iso-dvd/debian-6.0.1a-amd64-DVD-1.iso
Resolving cdimage.debian.org... 130.239.18.163, 130.239.18.173,
2001:6b0:e:2018::163, ...

Connecting to cdimage.debian.org|130.239.18.163|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location:
http://hammurabi.acc.umu.se/debian-cd/6.0.1a/amd64/iso-dvd/debian-6.0.1a-amd64-DVD-1.iso
[following]
--2011-06-07 02:52:16--
http://hammurabi.acc.umu.se/debian-cd/6.0.1a/amd64/iso-dvd/debian-6.0.1a-amd64-DVD-1.iso

Resolving hammurabi.acc.umu.se... 130.239.18.165, 2001:6b0:e:2018::165
Connecting to hammurabi.acc.umu.se|130.239.18.165|:80... connected.
HTTP request sent, awaiting response... 206 Partial Content
Length: 4689108992 (4.4G), 394141697 (376M) remaining
[application/octet-stream]

Saving to: `debian-6.0.1a-amd64-DVD-1.iso'

91%
[++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++
] 4,294,967,295 --.-K/s File size limit exceeded

"

So, I checked, and each unsucessful download attempt, resulted in a file
with exactly the same size; the file size stated above, which is stated
by the download or file management software (using the file Properties,
I think) to be 4.0GB.


So, I have now downloaded copies of the 32 bit and 64 bit CD iso images
(for the first disk of each, only).


But, the concept here, is that, from my reasoning (and I stand to be
corrected in this, if I am wrong), a 32 bit operating system (or, the
Debian 5 32 bit "ix86" operating system, which is what I was using to
download the iso images), appears to have a maximum file size of 4.0GB.


As I have said, I stand to be corrected, if I am wrong in that
deduction.


But, if I am correct, perhaps, a warning to that effect, could be put on
the web page at http://www.debian.org/CD/http-ftp/, to avoid wastage of
bandwidth (I have probably, now, downloaded about 20-30GB, to end up
with two CD images, and, unusable partial DVD iso images).


So, this is an unexpected issue, of which, I believe I have a duty to
advise, and, possibly, to seek clarification.


--
Bret Busby
Armadale
West Australia
..............

"So once you do know what the question actually is,
you'll know what the answer means."
- Deep Thought,
Chapter 28 of Book 1 of
"The Hitchhiker's Guide to the Galaxy:
A Trilogy In Four Parts",
written by Douglas Adams,
published by Pan Books, 1992

.................................................. ..


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Old 06-07-2011, 02:01 AM
William Hopkins
 
Default - unexpected issue with iso images

On 06/07/11 at 09:27am, Bret Busby wrote:
> Hello.
>
> First thing - I think that it would be a good idea for each version
> to have its own mailing list, with message prepending (in a form
> such as the one above), so that users can easily identify messages
> that apply to each user's particular appropriate version(s).

This is a user list, and I think it is best to have as many users as possible for broad support (:
Where would you go for 5-6 migration efforts, the 5 list or the 6 list? You would cc: both, no doubt.

> So, I have now downloaded copies of the 32 bit and 64 bit CD iso
> images (for the first disk of each, only).

Why are you downloading both? Choose whichever is appropriate for you, and download that. I would posit that it's probably 32bit unless you have a specific need for the 64bit distribution (even if your CPU supports 64 bit).

> But, the concept here, is that, from my reasoning (and I stand to be
> corrected in this, if I am wrong), a 32 bit operating system (or,
> the Debian 5 32 bit "ix86" operating system, which is what I was
> using to download the iso images), appears to have a maximum file
> size of 4.0GB.

The file size limit is set by your filesystem. Which OS you're downloading has no bearing on it, but it does sound like you're hitting a limit. What OS are you currently *using*? I wasn't able to determine from your email. FAT32 has 4GB limits. Ext3 does not, regardless of architecture. I have a 32bit kernel and ext3 and I have many files >5GB

> But, if I am correct, perhaps, a warning to that effect, could be
> put on the web page at http://www.debian.org/CD/http-ftp/, to avoid
> wastage of bandwidth (I have probably, now, downloaded about
> 20-30GB, to end up with two CD images, and, unusable partial DVD iso
> images).

A warning about filesizes could probably be put there, but I am not the one to do it. Send that request to the debian-www list.


Now as for your issue. As stated on the first 'Getting Debian' page:

"If you simply want to install Debian and have an Internet connection on the target computer please consider the Network Install media which is a smaller download."

Or download the CD image, instead of the DVD image. It sounds like whatever you've got doesn't support >4GB files.


--
Liam
 

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