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#1 2019-09-12 05:18:12

crc
Member
Registered: 2019-09-12
Posts: 6

Integrity check

Hello! Im a new to this community, but used Crunchbang Linux and Bunsenlabs sometime ago. I want to renew this experience.

I have a question - when I try to check integrity of iso while in the installation - both images helium-5-amd64.hybrid.iso and helium-5-i386.hybrid.iso checked whith errors.
Checksum not matched. Is it normal, or not?

Thanks!

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#2 2019-09-12 05:35:53

damo
....moderator....
Registered: 2015-08-20
Posts: 5,096

Re: Integrity check

crc wrote:

...
Checksum not matched. Is it normal, or not?

Thanks!

It is not normal - either you have a corrupted download, or you aren't using the correct checksum file, or you have made a mistake in the procedure.

bunsenlabs wrote:

Make sure to pass the name of the *.sha256sum.txt file, and not the ISO file!

(Let's assume you have got the genuine iso's from Bunsenlabs!)


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#3 2019-09-12 05:58:09

crc
Member
Registered: 2019-09-12
Posts: 6

Re: Integrity check

I download all images directly from Bunsenlabs.org with wget command (i can see and recheck downloaded file) and burn when to usb stick with dd comand.

For example burning debian iso same way in same usb stick - check passed with ok.

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#4 2019-09-12 10:31:01

clusterF
Member
Registered: 2019-05-07
Posts: 176

Re: Integrity check

Maybe show an example of how you do the integrity check.


Everything not saved will be lost.

--Nintendo "Quit Screen" message

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#5 2019-09-12 12:04:10

crc
Member
Registered: 2019-09-12
Posts: 6

Re: Integrity check

In this time I don't have an option to do screenshots.

But in words:
1. Start installation process from bunsenlabs iso media (usb / cd-rom / etc).
2. When you see a first screen whith language selection, press "escape" button.
In open list select "Integrity Check" option and do it.

Please report - if not only I have this issue.
Maybe this issue just compilation bug of integrity check option...

P.S. As this OS based on Debian, Debian installation have same way to do integrity check.

Last edited by crc (2019-09-12 12:06:50)

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#6 2019-09-12 15:11:27

damo
....moderator....
Registered: 2015-08-20
Posts: 5,096

Re: Integrity check

OK, I misunderstood. Did you do the sha256 checksum test on the iso before trying to install? If it passes OK, does a full install procedure work without trying a subsequent integrity check?


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#7 2019-09-12 17:58:08

crc
Member
Registered: 2019-09-12
Posts: 6

Re: Integrity check

Yes. Iso is normal, and OS installed well.

But this issue made me not sleep.
I think if I have any options in working OS or Installing OS - it's must be working.

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#8 2019-09-12 18:20:43

ohnonot
...again
Registered: 2015-09-29
Posts: 4,007
Website

Re: Integrity check

crc wrote:

1. Start installation process from bunsenlabs iso media (usb / cd-rom / etc).
2. When you see a first screen whith language selection, press "escape" button.
In open list select "Integrity Check" option and do it.

That's not what the bunsenlabs installation page recommends:

Place the file containing the checksums in the same directory as your ISO file downloads, and then run in a terminal sha256sum --check ${CHECKSUM_FILE}. Make sure to pass the name of the *.sha256sum.txt file, and not the ISO file!

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#9 2019-09-12 19:30:57

crc
Member
Registered: 2019-09-12
Posts: 6

Re: Integrity check

Ok, I combined the checksum file and the image, all is well.
But, where is the guarantee that the image was recorded to media correctly?
It was the integrity check during the installation that helped determine the extent of the installation, and now this option is useless and not recommended by the installation guide?
Strange...

Last edited by crc (2019-09-12 19:31:37)

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#10 2019-09-14 08:18:35

ohnonot
...again
Registered: 2015-09-29
Posts: 4,007
Website

Re: Integrity check

It is strange only to you because you're new to it.

crc wrote:

But, where is the guarantee that the image was recorded to media correctly?

You can check that too. I think the first two results have enough options between them.

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#11 2019-09-14 13:37:49

crc
Member
Registered: 2019-09-12
Posts: 6

Re: Integrity check

For me this issue classified as "strange" not because I can't do integrity check with usb and checksum file, but because the installation program have this option, but it's not working. And if it's not working, and don't have any value - just exclude it from installation menu - and question of it is not be.

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#12 2019-09-14 14:46:44

clusterF
Member
Registered: 2019-05-07
Posts: 176

Re: Integrity check

Im not sure i understand the issue here but possibly the difference between installations has the dpkg --verify flag set in debian iso's whereas bunsenlabs may not?

https://wiki.debian.org/CheckingDebsums


Everything not saved will be lost.

--Nintendo "Quit Screen" message

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#13 2019-09-15 04:19:15

johnraff
nullglob
From: Nagoya, Japan
Registered: 2015-09-09
Posts: 5,850
Website

Re: Integrity check

crc wrote:

For me this issue classified as "strange" not because I can't do integrity check with usb and checksum file, but because the installation program have this option, but it's not working. And if it's not working, and don't have any value - just exclude it from installation menu - and question of it is not be.

The BunsenLabs installer is essentially the Debian Installer. Our modifications are mostly extra theme files and some preseeding, but removing that Integrity Check entry from the menu would mean a lot more hacking of the code than we want to do at the moment.

It would be interesting to look into why it fails with BL but succeeds in the Debian Installer - my guess is that it will be related to how live-build generates the checksum file - but right now it will have to take a lower priority than some other tasks in getting the new Lithium system put together.


John
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