[dm-crypt] luksHeaderBackup

[dm-crypt] luksHeaderBackup

[Ali Reza Sajedi]

[-- Attachment #1: Type: text/plain, Size: 709 bytes --]

Hello All,

I have cryptsetup 1.1.0 installed.

I am trying to backup the header of a crypted USB drive using the following command:

cryptsetup luksHeaderBackup /dev/sdb1 --header-backup-file /etc/b2g/header

when I execute the command from the shell it does the job, but, wenn I start it using http or cron (in webmin) it doesn't

I tried to execute the command in webmin by a cron-job. What I get here is the following error:

--header-backup-file: unknown option

Could anyone see what is going wrong here, since it does work when started at the shell but does fail when started otherwise.

From which version is this command implemented?

Thank you for your help.

Best regards

Ali

[-- Attachment #2: Type: text/html, Size: 2029 bytes --]

Re: [dm-crypt] luksHeaderBackup

[Arno Wagner]

On Mon, Jun 07, 2010 at 12:27:02AM +0200, Ali Reza Sajedi wrote:
> Hello All,
> 
> I have cryptsetup 1.1.0 installed. I am trying to backup the header of a
> crypted USB drive using the following command: cryptsetup luksHeaderBackup
> /dev/sdb1 --header-backup-file /etc/b2g/header when I execute the command
> from the shell it does the job, but, wenn I start it using http or cron
> (in webmin) it doesn't I tried to execute the command in webmin by a
> cron-job. What I get here is the following error:
> 
> --header-backup-file: unknown option
> 
> Could anyone see what is going wrong here, since it does work when started
> at the shell but does fail when started otherwise. From which version is
> this command implemented? Thank you for your help.
>
> Best regards
> Ali

I suspect you have two version on your system and different PATH
variables in cron/webmin and your normal shell. One way to find out
is to run "cryptsetup --version" in cron/webmin. To get the right
version to run, remove the old version and check whether you need
to adjust the search path for cron/webmin.

Arno

-- 
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier 

Re: [dm-crypt] luksHeaderBackup

[Ali Reza Sajedi]

Dear Arno,

Thank you very much for your hint.

Yes, you are right. I have 2 versions running.

I installed 1.1.0 on 1.0.6 without removing the older version.

I thought the new version would only update the older version. However, 
apparently, this is not the case.

I will try to remove the older version and see if it works. Thank you.

Best regards

Ali
----- Original Message ----- 
From: "Arno Wagner" <arno@wagner.name>
To: <dm-crypt@saout.de>
Sent: Monday, June 07, 2010 2:37 PM
Subject: Re: [dm-crypt] luksHeaderBackup


> On Mon, Jun 07, 2010 at 12:27:02AM +0200, Ali Reza Sajedi wrote:
>> Hello All,
>>
>> I have cryptsetup 1.1.0 installed. I am trying to backup the header of a
>> crypted USB drive using the following command: cryptsetup 
>> luksHeaderBackup
>> /dev/sdb1 --header-backup-file /etc/b2g/header when I execute the command
>> from the shell it does the job, but, wenn I start it using http or cron
>> (in webmin) it doesn't I tried to execute the command in webmin by a
>> cron-job. What I get here is the following error:
>>
>> --header-backup-file: unknown option
>>
>> Could anyone see what is going wrong here, since it does work when 
>> started
>> at the shell but does fail when started otherwise. From which version is
>> this command implemented? Thank you for your help.
>>
>> Best regards
>> Ali
>
> I suspect you have two version on your system and different PATH
> variables in cron/webmin and your normal shell. One way to find out
> is to run "cryptsetup --version" in cron/webmin. To get the right
> version to run, remove the old version and check whether you need
> to adjust the search path for cron/webmin.
>
> Arno
>
> -- 
> Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: 
> arno@wagner.name
> GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 
> 338F
> ----
> Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
>
> If it's in the news, don't worry about it.  The very definition of
> "news" is "something that hardly ever happens." -- Bruce Schneier
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt 

Re: [dm-crypt] luksHeaderBackup

[Arno Wagner]

Hi Ali,

no problem, the same happened to me. I had an old version
from Debian in /usr/sbin and a manually installed new
wersion in /usr/local/sbin.

Arno

On Mon, Jun 07, 2010 at 08:27:50PM +0200, Ali Reza Sajedi wrote:
> Dear Arno,
>
> Thank you very much for your hint.
>
> Yes, you are right. I have 2 versions running.
>
> I installed 1.1.0 on 1.0.6 without removing the older version.
>
> I thought the new version would only update the older version. However,  
> apparently, this is not the case.
>
> I will try to remove the older version and see if it works. Thank you.
>
> Best regards
>
> Ali
> ----- Original Message ----- From: "Arno Wagner" <arno@wagner.name>
> To: <dm-crypt@saout.de>
> Sent: Monday, June 07, 2010 2:37 PM
> Subject: Re: [dm-crypt] luksHeaderBackup
>
>
>> On Mon, Jun 07, 2010 at 12:27:02AM +0200, Ali Reza Sajedi wrote:
>>> Hello All,
>>>
>>> I have cryptsetup 1.1.0 installed. I am trying to backup the header of a
>>> crypted USB drive using the following command: cryptsetup  
>>> luksHeaderBackup
>>> /dev/sdb1 --header-backup-file /etc/b2g/header when I execute the command
>>> from the shell it does the job, but, wenn I start it using http or cron
>>> (in webmin) it doesn't I tried to execute the command in webmin by a
>>> cron-job. What I get here is the following error:
>>>
>>> --header-backup-file: unknown option
>>>
>>> Could anyone see what is going wrong here, since it does work when  
>>> started
>>> at the shell but does fail when started otherwise. From which version is
>>> this command implemented? Thank you for your help.
>>>
>>> Best regards
>>> Ali
>>
>> I suspect you have two version on your system and different PATH
>> variables in cron/webmin and your normal shell. One way to find out
>> is to run "cryptsetup --version" in cron/webmin. To get the right
>> version to run, remove the old version and check whether you need
>> to adjust the search path for cron/webmin.
>>
>> Arno
>>
>> -- 
>> Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email:  
>> arno@wagner.name
>> GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 
>> 338F
>> ----
>> Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
>>
>> If it's in the news, don't worry about it.  The very definition of
>> "news" is "something that hardly ever happens." -- Bruce Schneier
>> _______________________________________________
>> dm-crypt mailing list
>> dm-crypt@saout.de
>> http://www.saout.de/mailman/listinfo/dm-crypt 
>
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt
>

-- 
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier 

Re: [dm-crypt] luksHeaderBackup

[Ali Reza Sajedi]

Dear Arno,

I removed the old version 1.0.6 and now webmin finds the new version 1.1.0

Thank you for your help.

Best regards

Ali

----- Original Message ----- 
From: "Arno Wagner" <arno@wagner.name>
To: <dm-crypt@saout.de>
Sent: Monday, June 07, 2010 9:14 PM
Subject: Re: [dm-crypt] luksHeaderBackup


> Hi Ali,
>
> no problem, the same happened to me. I had an old version
> from Debian in /usr/sbin and a manually installed new
> wersion in /usr/local/sbin.
>
> Arno
>
> On Mon, Jun 07, 2010 at 08:27:50PM +0200, Ali Reza Sajedi wrote:
>> Dear Arno,
>>
>> Thank you very much for your hint.
>>
>> Yes, you are right. I have 2 versions running.
>>
>> I installed 1.1.0 on 1.0.6 without removing the older version.
>>
>> I thought the new version would only update the older version. However,
>> apparently, this is not the case.
>>
>> I will try to remove the older version and see if it works. Thank you.
>>
>> Best regards
>>
>> Ali
>> ----- Original Message ----- From: "Arno Wagner" <arno@wagner.name>
>> To: <dm-crypt@saout.de>
>> Sent: Monday, June 07, 2010 2:37 PM
>> Subject: Re: [dm-crypt] luksHeaderBackup
>>
>>
>>> On Mon, Jun 07, 2010 at 12:27:02AM +0200, Ali Reza Sajedi wrote:
>>>> Hello All,
>>>>
>>>> I have cryptsetup 1.1.0 installed. I am trying to backup the header of 
>>>> a
>>>> crypted USB drive using the following command: cryptsetup
>>>> luksHeaderBackup
>>>> /dev/sdb1 --header-backup-file /etc/b2g/header when I execute the 
>>>> command
>>>> from the shell it does the job, but, wenn I start it using http or cron
>>>> (in webmin) it doesn't I tried to execute the command in webmin by a
>>>> cron-job. What I get here is the following error:
>>>>
>>>> --header-backup-file: unknown option
>>>>
>>>> Could anyone see what is going wrong here, since it does work when
>>>> started
>>>> at the shell but does fail when started otherwise. From which version 
>>>> is
>>>> this command implemented? Thank you for your help.
>>>>
>>>> Best regards
>>>> Ali
>>>
>>> I suspect you have two version on your system and different PATH
>>> variables in cron/webmin and your normal shell. One way to find out
>>> is to run "cryptsetup --version" in cron/webmin. To get the right
>>> version to run, remove the old version and check whether you need
>>> to adjust the search path for cron/webmin.
>>>
>>> Arno
>>>
>>> -- 
>>> Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email:
>>> arno@wagner.name
>>> GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25
>>> 338F
>>> ----
>>> Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
>>>
>>> If it's in the news, don't worry about it.  The very definition of
>>> "news" is "something that hardly ever happens." -- Bruce Schneier
>>> _______________________________________________
>>> dm-crypt mailing list
>>> dm-crypt@saout.de
>>> http://www.saout.de/mailman/listinfo/dm-crypt
>>
>> _______________________________________________
>> dm-crypt mailing list
>> dm-crypt@saout.de
>> http://www.saout.de/mailman/listinfo/dm-crypt
>>
>
> -- 
> Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: 
> arno@wagner.name
> GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 
> 338F
> ----
> Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
>
> If it's in the news, don't worry about it.  The very definition of
> "news" is "something that hardly ever happens." -- Bruce Schneier
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt 

[dm-crypt] luksHeaderBackup

[Two Spirit]

[-- Attachment #1: Type: text/plain, Size: 299 bytes --]

Is the cryptsetup luksHeaderBackup equvalent to just doing a dd of the LUKS
drive?
how would I know the exact total length. and I assume there is no offset
for the header.

also, I just want to confirm that it wouldn't make a difference if I did a
dd while the
device was luksOpen'd or luksClose'd?

[-- Attachment #2: Type: text/html, Size: 359 bytes --]

Re: [dm-crypt] luksHeaderBackup

[Heinz Diehl]

On 14.08.2012, Two Spirit wrote: 

> Is the cryptsetup luksHeaderBackup equvalent to just doing a dd of the LUKS
> drive?

No.

> how would I know the exact total length. and I assume there is no offset
> for the header.

Look here:

http://wiki.cryptsetup.googlecode.com/git/LUKS-standard/on-disk-format.pdf