[gentoo-user] Re: MD5SUM

[gentoo-user] Re: MD5SUM

[eroen]

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On Fri, 14 Mar 2014 08:49:51 +0800, Guido Budack <glaivy@yandex.com>
wrote:
> md5sum livedvd-amd64-multilib-20121221.iso

> And now, any suggestion?
> 

You don't specifically state what you are after, but I'll mention some
stuff anyway.

The gentoo livedvds are mostly meant as a showcase of gentoo's
capabilities. While they can be used to install gentoo, just like any
other linux live media in recent memory, they are not mainly intended
for this.

For installing gentoo, the minimal install livecd is recommended for
simple scenarios as noted in the handbook. For more complex setups,
notably installing without a wired network connection, I and many others
recommend using systemrescuecd[1]. If not using the gentoo minimal
install cd, please refer to [2] for some minor deviations from the
handbook that are often necessary.

1: http://www.sysresccd.org/Download
2: https://wiki.gentoo.org/wiki/Installation_alternatives#Installation_from_non-Gentoo_LiveCDs

-- 
eroen

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Re: [gentoo-user] Re: MD5SUM

[Neil Bothwick]

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On Fri, 14 Mar 2014 13:05:33 +0800, Guido Budack wrote:

> nice on but doesn't tell me why the md5sum isn't correct...
> Usually I don't check the sums if it isn't 'critical' stuff or an OS.
> So after I checked the other sources and files I figured out that ALL
> md5sums are incorrect but the file-sizes aren't. In that case either
> the media is corrupted or my local os (Ubunto). The latter one I
> couldn't explain because its all genuine and updated almost on a daily
> basis...

Hardware fault?

> Don't know, may be I stick to my debian and let it just be...
> However, thanks for your efforts.

If you're going to give up on something as simple as this, maybe Gentoo
isn't for you anyway :(


-- 
Neil Bothwick

Top Oxymorons Number 30: Business ethics

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[gentoo-user] Re:MD5SUM

[Guido Budack]

By the way and like I mentioned, the file-sizes are correct!

Re: [gentoo-user] Re:MD5SUM

[Neil Bothwick]

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On Fri, 14 Mar 2014 20:43:37 +0800, Guido Budack wrote:

> By the way and like I mentioned, the file-sizes are correct!

Where did you get the file sizes? The mirror only shows approximate sizes
and the only reported size I recall seeing in this thread was from du,
which is not file size.

FYI

% ls -l livedvd-amd64-multilib-20121221.iso                   
-rw-r--r-- 1 nelz users 4198498304 Jan 16  2013 livedvd-amd64-multilib-20121221.iso


% md5sum -c  livedvd-amd64-multilib-20121221.iso.DIGESTS 2>/dev/null
livedvd-amd64-multilib-20121221.iso: OK
livedvd-amd64-multilib-20121221.iso.CONTENTS: FAILED open or read
livedvd-amd64-multilib-20121221.iso.CONTENTS-squashfs.gz: FAILED open or read
livedvd-amd64-multilib-20121221.iso.CREDITS: FAILED open or read
livedvd-amd64-multilib-20121221.iso.PACKAGES: FAILED open or read

% head -n 2 livedvd-amd64-multilib-20121221.iso.DIGESTS
# MD5 HASH
e86da868be423283ec167725390faefc  livedvd-amd64-multilib-20121221.iso


-- 
Neil Bothwick

Top Oxymorons Number 46: Found missing

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Re:[gentoo-user] Re:MD5SUM

[Guido Budack]

>dev/null... grmpf... :-/

No, the filesize is and was the same...
I'm really astonished...
Listen, to keep it brief... I guess there are more urgend topics to discuss.  I'll repeat the whole procedure when I'm back in Europe at the end of the month and report to the community....
It doesn't make much sense to hold an endless discussion now.
I just can say that the filesize is the same and as reported already before and that my hashing wasn't successful in contrast to on other files.
I was just curious if probably someone has similar problems AND I saw it as some sort of a duty to report it to the community.
However, if someone feels annoyed or bothered or however you call it in english... wasn't intentionally...

I come back to you soon.
Thanks for your consideration.

Gee

Re: [gentoo-user] Re:MD5SUM

[the]

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On 03/14/14 18:01, Guido Budack wrote:
>> dev/null... grmpf... :-/
> 
> No, the filesize is and was the same... I'm really astonished... 
> Listen, to keep it brief... I guess there are more urgend topics to
> discuss.  I'll repeat the whole procedure when I'm back in Europe
> at the end of the month and report to the community.... It doesn't
> make much sense to hold an endless discussion now. I just can say
> that the filesize is the same and as reported already before and
> that my hashing wasn't successful in contrast to on other files. I
> was just curious if probably someone has similar problems AND I saw
> it as some sort of a duty to report it to the community. However,
> if someone feels annoyed or bothered or however you call it in
> english... wasn't intentionally...

How about using another md5sum executable/building it/using openssl?

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Re: [gentoo-user] Re:MD5SUM

[Neil Bothwick]

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On Fri, 14 Mar 2014 22:01:09 +0800, Guido Budack wrote:

> >dev/null... grmpf... :-/  

It was 2>/dev/null, to get rid of all the irrelevant complaints about
missing files. Have you actually tried running md5sum -c on the DIGESTS
file instead of the ISO?

> I just can say that the filesize is the same and as reported already
> before and that my hashing wasn't successful in contrast to on other
> files. I was just curious if probably someone has similar problems AND
> I saw it as some sort of a duty to report it to the community.

It seems to be only you that is affected. I wonder if it could be to do
with your use of --continue? Even a single bit changed at the point of a
restart would cause what you are seeing.

Have you tried another mirror?


-- 
Neil Bothwick

WINDOWS: Will Install Needless Data On Whole System

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Re: [gentoo-user] Re:MD5SUM

[William Kenworthy]

On 15/03/14 03:29, Guido Budack wrote:
> Good proposition but why?
> It works...
> 
> Never change a running system :-/
> 

ahh ... its running, but its NOT running correctly! (if you are
referring to what I think you are)

check if you have caching/buffering between you and the file (i.e., is
it over NFS, cephfs etc) - e.g., this used to happen sometimes when
trying to md5sum cdrom's whilst in a cd drive.

Also, have you checked multiple mirrors and multiple digests? (I don't
think I've seen that you have)

BillK

Re: [gentoo-user] Re:MD5SUM

[the]

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On 03/14/14 23:29, Guido Budack wrote:
> Good proposition but why? It works...
> 
> Never change a running system :-/
> 
Sorry failed to parse that. btw i'm on the list.
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Re: [gentoo-user] Re:MD5SUM

[Mick]

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On Saturday 15 Mar 2014 01:42:51 William Kenworthy wrote:
> On 15/03/14 03:29, Guido Budack wrote:
> > Good proposition but why?
> > It works...
> > 
> > Never change a running system :-/
> 
> ahh ... its running, but its NOT running correctly! (if you are
> referring to what I think you are)
> 
> check if you have caching/buffering between you and the file (i.e., is
> it over NFS, cephfs etc) - e.g., this used to happen sometimes when
> trying to md5sum cdrom's whilst in a cd drive.

The cd hash will never be the same with the iso image saved on a disk which 
was used to burn it with, because the cd includes data at the end of the 
image, the 'lead out' section which closes the session.  If you dd the correct 
number of bytes and pipe these to md5sum then the hash should be the same.

-- 
Regards,
Mick

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