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Groups > comp.os.linux.misc > #5792 > unrolled thread

how can I tell if a partition is a luks partition?

Started byTodd <Todd@invalid.invalid>
First post2012-07-30 22:20 -0700
Last post2012-08-03 16:21 -0700
Articles 20 on this page of 23 — 8 participants

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  how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-07-30 22:20 -0700
    Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-07-30 22:36 -0700
      Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-07-30 22:37 -0700
        Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-07-30 22:46 -0700
        Re: how can I tell if a partition is a luks partition? Bit Twister <BitTwister@mouse-potato.com> - 2012-07-31 08:10 +0000
          Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-07-31 10:12 -0700
            Re: how can I tell if a partition is a luks partition? Bit Twister <BitTwister@mouse-potato.com> - 2012-07-31 17:31 +0000
              Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-07-31 12:27 -0700
                Re: how can I tell if a partition is a luks partition? "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2012-07-31 15:38 -0400
                  Re: how can I tell if a partition is a luks partition? Aragorn <stryder@telenet.be.invalid> - 2012-07-31 21:55 +0200
                    Re: how can I tell if a partition is a luks partition? "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2012-07-31 16:03 -0400
                      Re: how can I tell if a partition is a luks partition? Robert Riches <spamtrap42@jacob21819.net> - 2012-08-01 04:11 +0000
                        Re: how can I tell if a partition is a luks partition? Richard Kettlewell <rjk@greenend.org.uk> - 2012-08-01 09:08 +0100
                  Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-08-01 11:04 -0700
                    Re: how can I tell if a partition is a luks partition? "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2012-08-01 14:25 -0400
                      Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-08-01 13:54 -0700
    Re: how can I tell if a partition is a luks partition? Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-07-31 13:57 -0500
      Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-07-31 12:31 -0700
        Re: how can I tell if a partition is a luks partition? Loki Harfagr <l0k1@thedarkdesign.free.fr.INVALID> - 2012-08-01 10:03 +0000
          Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-08-01 11:03 -0700
            Re: how can I tell if a partition is a luks partition? Loki Harfagr <l0k1@thedarkdesign.free.fr.INVALID> - 2012-08-01 20:53 +0000
            Re: how can I tell if a partition is a luks partition? Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2012-08-02 09:50 -0500
              Re: how can I tell if a partition is a luks partition? Todd <Todd@invalid.invalid> - 2012-08-03 16:21 -0700

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#5792 — how can I tell if a partition is a luks partition?

FromTodd <Todd@invalid.invalid>
Date2012-07-30 22:20 -0700
Subjecthow can I tell if a partition is a luks partition?
Message-ID<jv7pvo$5vr$1@dont-email.me>
Hi All,

    From the command line (I am going to write a script),
how can I tell if a partition is a luks partition?

Many thanks,
-T

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#5794

FromTodd <Todd@invalid.invalid>
Date2012-07-30 22:36 -0700
Message-ID<jv7qs4$9q1$1@dont-email.me>
In reply to#5792
On 07/30/2012 10:20 PM, Todd wrote:
> Hi All,
>
>     From the command line (I am going to write a script),
> how can I tell if a partition is a luks partition?
>
> Many thanks,
> -T


Figured it out: blkid   (Block ID)

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#5795

FromTodd <Todd@invalid.invalid>
Date2012-07-30 22:37 -0700
Message-ID<jv7qut$9q1$2@dont-email.me>
In reply to#5794
On 07/30/2012 10:36 PM, Todd wrote:
> On 07/30/2012 10:20 PM, Todd wrote:
>> Hi All,
>>
>>     From the command line (I am going to write a script),
>> how can I tell if a partition is a luks partition?
>>
>> Many thanks,
>> -T
>
>
> Figured it out: blkid   (Block ID)


oops, you have to run "blkid" as root

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#5796

FromTodd <Todd@invalid.invalid>
Date2012-07-30 22:46 -0700
Message-ID<jv7rgd$ccc$1@dont-email.me>
In reply to#5795
On 07/30/2012 10:37 PM, Todd wrote:
> On 07/30/2012 10:36 PM, Todd wrote:
>> On 07/30/2012 10:20 PM, Todd wrote:
>>> Hi All,
>>>
>>>     From the command line (I am going to write a script),
>>> how can I tell if a partition is a luks partition?
>>>
>>> Many thanks,
>>> -T
>>
>>
>> Figured it out: blkid   (Block ID)
>
>
> oops, you have to run "blkid" as root

# lsblk is fun too

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#5799

FromBit Twister <BitTwister@mouse-potato.com>
Date2012-07-31 08:10 +0000
Message-ID<slrnk1f4nl.vct.BitTwister@wb.home.test>
In reply to#5795
On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>
> oops, you have to run "blkid" as root

Oh no, hope my system never finds that out.

[bittwister@wb ~]$ /sbin/blkid | grep sda6
/dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"

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#5803

FromTodd <Todd@invalid.invalid>
Date2012-07-31 10:12 -0700
Message-ID<jv93mo$k2q$2@dont-email.me>
In reply to#5799
On 07/31/2012 01:10 AM, Bit Twister wrote:
> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>
>> oops, you have to run "blkid" as root
>
> Oh no, hope my system never finds that out.
>
> [bittwister@wb ~]$ /sbin/blkid | grep sda6
> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"
>


Oh, now it decides to work as a user today!  Yesterday,
I got nothing back, unless I was root.

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#5804

FromBit Twister <BitTwister@mouse-potato.com>
Date2012-07-31 17:31 +0000
Message-ID<slrnk1g5jh.fhp.BitTwister@wb.home.test>
In reply to#5803
On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
> On 07/31/2012 01:10 AM, Bit Twister wrote:
>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>
>>> oops, you have to run "blkid" as root
>>
>> Oh no, hope my system never finds that out.
>>
>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"
>>
>
>
> Oh, now it decides to work as a user today!  Yesterday,
> I got nothing back, unless I was root.

If you run "blkid" I will guess it would be broke again.  :-8

And magically "/sbin/blkid" will work. :-D

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#5806

FromTodd <Todd@invalid.invalid>
Date2012-07-31 12:27 -0700
Message-ID<jv9bjt$9d9$1@dont-email.me>
In reply to#5804
On 07/31/2012 10:31 AM, Bit Twister wrote:
> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>
>>>> oops, you have to run "blkid" as root
>>>
>>> Oh no, hope my system never finds that out.
>>>
>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"
>>>
>>
>>
>> Oh, now it decides to work as a user today!  Yesterday,
>> I got nothing back, unless I was root.
>
> If you run "blkid" I will guess it would be broke again.  :-8
>
> And magically "/sbin/blkid" will work. :-D
>

That stupid sbin directory again!  AAAAHHHHHHH

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#5808

From"Chris F.A. Johnson" <cfajohnson@gmail.com>
Date2012-07-31 15:38 -0400
Message-ID<kqole9-301.ln1@cjlocal.com>
In reply to#5806
On 2012-07-31, Todd wrote:
> On 07/31/2012 10:31 AM, Bit Twister wrote:
>> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>>
>>>>> oops, you have to run "blkid" as root
>>>>
>>>> Oh no, hope my system never finds that out.
>>>>
>>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"
>>>>
>>>
>>>
>>> Oh, now it decides to work as a user today!  Yesterday,
>>> I got nothing back, unless I was root.
>>
>> If you run "blkid" I will guess it would be broke again.  :-8
>>
>> And magically "/sbin/blkid" will work. :-D
>>
>
> That stupid sbin directory again!  AAAAHHHHHHH

   Why is /sbin not in your PATH?

-- 
   Chris F.A. Johnson, <http://cfajohnson.com>
   Author:
   Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
   Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)

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#5809

FromAragorn <stryder@telenet.be.invalid>
Date2012-07-31 21:55 +0200
Message-ID<jv9d7b$iar$1@dont-email.me>
In reply to#5808
On Tuesday 31 July 2012 21:38, Chris F.A. Johnson conveyed the following 
to comp.os.linux.misc...

> On 2012-07-31, Todd wrote:
>
>> On 07/31/2012 10:31 AM, Bit Twister wrote:
>>
>>> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>>>
>>>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>>>
>>>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>>>
>>>>>> oops, you have to run "blkid" as root
>>>>>
>>>>> Oh no, hope my system never finds that out.
>>>>>
>>>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6"
>>>>> TYPE="ext4"
>>>>
>>>> Oh, now it decides to work as a user today!  Yesterday,
>>>> I got nothing back, unless I was root.
>>>
>>> If you run "blkid" I will guess it would be broke again.  :-8
>>>
>>> And magically "/sbin/blkid" will work. :-D
>>
>> That stupid sbin directory again!  AAAAHHHHHHH
> 
>    Why is /sbin not in your PATH?

Probably because he was executing it as a non-root user, in which case 
it should indeed _not_ be in his $PATH.

-- 
= Aragorn =
(registered GNU/Linux user #223157)

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#5810

From"Chris F.A. Johnson" <cfajohnson@gmail.com>
Date2012-07-31 16:03 -0400
Message-ID<q9qle9-301.ln1@cjlocal.com>
In reply to#5809
On 2012-07-31, Aragorn wrote:
> On Tuesday 31 July 2012 21:38, Chris F.A. Johnson conveyed the following 
> to comp.os.linux.misc...
>
>> On 2012-07-31, Todd wrote:
>>
>>> On 07/31/2012 10:31 AM, Bit Twister wrote:
>>>
>>>> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>>>>
>>>>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>>>>
>>>>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>>>>
>>>>>>> oops, you have to run "blkid" as root
>>>>>>
>>>>>> Oh no, hope my system never finds that out.
>>>>>>
>>>>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>>>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6"
>>>>>> TYPE="ext4"
>>>>>
>>>>> Oh, now it decides to work as a user today!  Yesterday,
>>>>> I got nothing back, unless I was root.
>>>>
>>>> If you run "blkid" I will guess it would be broke again.  :-8
>>>>
>>>> And magically "/sbin/blkid" will work. :-D
>>>
>>> That stupid sbin directory again!  AAAAHHHHHHH
>> 
>>    Why is /sbin not in your PATH?
>
> Probably because he was executing it as a non-root user, in which case 
> it should indeed _not_ be in his $PATH.

   I disagree.

   I always have /sbin in my path as a regular user.

   There are commands in /sbin that I often use as a regular user.

-- 
   Chris F.A. Johnson, <http://cfajohnson.com>
   Author:
   Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
   Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)

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#5811

FromRobert Riches <spamtrap42@jacob21819.net>
Date2012-08-01 04:11 +0000
Message-ID<slrnk1hb4d.nvu.spamtrap42@one.localnet>
In reply to#5810
On 2012-07-31, Chris F.A. Johnson <cfajohnson@gmail.com> wrote:
> On 2012-07-31, Aragorn wrote:
>> On Tuesday 31 July 2012 21:38, Chris F.A. Johnson conveyed the following 
>> to comp.os.linux.misc...
>>
>>> On 2012-07-31, Todd wrote:
>>>
>>>> On 07/31/2012 10:31 AM, Bit Twister wrote:
>>>>
>>>>> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>>>>>
>>>>>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>>>>>
>>>>>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>>>>>
>>>>>>>> oops, you have to run "blkid" as root
>>>>>>>
>>>>>>> Oh no, hope my system never finds that out.
>>>>>>>
>>>>>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>>>>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6"
>>>>>>> TYPE="ext4"
>>>>>>
>>>>>> Oh, now it decides to work as a user today!  Yesterday,
>>>>>> I got nothing back, unless I was root.
>>>>>
>>>>> If you run "blkid" I will guess it would be broke again.  :-8
>>>>>
>>>>> And magically "/sbin/blkid" will work. :-D
>>>>
>>>> That stupid sbin directory again!  AAAAHHHHHHH
>>> 
>>>    Why is /sbin not in your PATH?
>>
>> Probably because he was executing it as a non-root user, in which case 
>> it should indeed _not_ be in his $PATH.
>
>    I disagree.
>
>    I always have /sbin in my path as a regular user.
>
>    There are commands in /sbin that I often use as a regular user.

/usr/sbin has lsusb, lshw, and lsof.  /sbin has lsmod along with
the aforementioned blkid.  I'm pretty sure that at one time mailq
and/or ping was in /sbin or /usr/sbin.

-- 
Robert Riches
spamtrap42@jacob21819.net
(Yes, that is one of my email addresses.)

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#5814

FromRichard Kettlewell <rjk@greenend.org.uk>
Date2012-08-01 09:08 +0100
Message-ID<87txwnm3ud.fsf@araminta.anjou.terraraq.org.uk>
In reply to#5811
Robert Riches <spamtrap42@jacob21819.net> writes:
> Chris F.A. Johnson <cfajohnson@gmail.com> wrote:
>> Aragorn wrote:
>>> Chris F.A. Johnson conveyed the following 

>>>> Why is /sbin not in your PATH?
>>>
>>> Probably because he was executing it as a non-root user, in which case 
>>> it should indeed _not_ be in his $PATH.
>>
>> I disagree.
>>
>> I always have /sbin in my path as a regular user.
>>
>> There are commands in /sbin that I often use as a regular user.
>
> /usr/sbin has lsusb, lshw, and lsof.  /sbin has lsmod along with
> the aforementioned blkid.  I'm pretty sure that at one time mailq
> and/or ping was in /sbin or /usr/sbin.

All sorts of generally-useful things are, or have been, in .../sbin.
The concept is at best dubious and the implementation worse.  We'd be
better off without it.

-- 
http://www.greenend.org.uk/rjk/

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#5825

FromTodd <Todd@invalid.invalid>
Date2012-08-01 11:04 -0700
Message-ID<jvbr48$lnn$2@dont-email.me>
In reply to#5808
On 07/31/2012 12:38 PM, Chris F.A. Johnson wrote:
> On 2012-07-31, Todd wrote:
>> On 07/31/2012 10:31 AM, Bit Twister wrote:
>>> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>>>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>>>
>>>>>> oops, you have to run "blkid" as root
>>>>>
>>>>> Oh no, hope my system never finds that out.
>>>>>
>>>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"
>>>>>
>>>>
>>>>
>>>> Oh, now it decides to work as a user today!  Yesterday,
>>>> I got nothing back, unless I was root.
>>>
>>> If you run "blkid" I will guess it would be broke again.  :-8
>>>
>>> And magically "/sbin/blkid" will work. :-D
>>>
>>
>> That stupid sbin directory again!  AAAAHHHHHHH
>
>     Why is /sbin not in your PATH?
>

It is.

$ echo $PATH
/usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/tony/bin:./:/home/todd:/sbin:/usr/sbin:/home/linuxutil:./

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#5826

From"Chris F.A. Johnson" <cfajohnson@gmail.com>
Date2012-08-01 14:25 -0400
Message-ID<3u8oe9-hnh.ln1@cjlocal.com>
In reply to#5825
On 2012-08-01, Todd wrote:
> On 07/31/2012 12:38 PM, Chris F.A. Johnson wrote:
>> On 2012-07-31, Todd wrote:
>>> On 07/31/2012 10:31 AM, Bit Twister wrote:
>>>> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>>>>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>>>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>>>>
>>>>>>> oops, you have to run "blkid" as root
>>>>>>
>>>>>> Oh no, hope my system never finds that out.
>>>>>>
>>>>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>>>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"
>>>>>>
>>>>>
>>>>>
>>>>> Oh, now it decides to work as a user today!  Yesterday,
>>>>> I got nothing back, unless I was root.
>>>>
>>>> If you run "blkid" I will guess it would be broke again.  :-8
>>>>
>>>> And magically "/sbin/blkid" will work. :-D
>>>>
>>>
>>> That stupid sbin directory again!  AAAAHHHHHHH
>>
>>     Why is /sbin not in your PATH?
>>
>
> It is.
>
> $ echo $PATH
> /usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/tony/bin:./:/home/todd:/sbin:/usr/sbin:/home/linuxutil:./

   Then you can just type 'blkid' without the directory. If you can't,
   there's something you're not telling us.

   What is the output of "type -a blkid"?

-- 
   Chris F.A. Johnson, <http://cfajohnson.com>
   Author:
   Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
   Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)

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#5829

FromTodd <Todd@invalid.invalid>
Date2012-08-01 13:54 -0700
Message-ID<jvc52d$lgq$1@dont-email.me>
In reply to#5826
On 08/01/2012 11:25 AM, Chris F.A. Johnson wrote:
> On 2012-08-01, Todd wrote:
>> On 07/31/2012 12:38 PM, Chris F.A. Johnson wrote:
>>> On 2012-07-31, Todd wrote:
>>>> On 07/31/2012 10:31 AM, Bit Twister wrote:
>>>>> On Tue, 31 Jul 2012 10:12:56 -0700, Todd wrote:
>>>>>> On 07/31/2012 01:10 AM, Bit Twister wrote:
>>>>>>> On Mon, 30 Jul 2012 22:37:33 -0700, Todd wrote:
>>>>>>>>
>>>>>>>> oops, you have to run "blkid" as root
>>>>>>>
>>>>>>> Oh no, hope my system never finds that out.
>>>>>>>
>>>>>>> [bittwister@wb ~]$ /sbin/blkid | grep sda6
>>>>>>> /dev/sda6: LABEL="cauldron" UUID="35f73957-91a7-439b-8aa8-1da6" TYPE="ext4"
>>>>>>>
>>>>>>
>>>>>>
>>>>>> Oh, now it decides to work as a user today!  Yesterday,
>>>>>> I got nothing back, unless I was root.
>>>>>
>>>>> If you run "blkid" I will guess it would be broke again.  :-8
>>>>>
>>>>> And magically "/sbin/blkid" will work. :-D
>>>>>
>>>>
>>>> That stupid sbin directory again!  AAAAHHHHHHH
>>>
>>>      Why is /sbin not in your PATH?
>>>
>>
>> It is.
>>
>> $ echo $PATH
>> /usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/tony/bin:./:/home/todd:/sbin:/usr/sbin:/home/linuxutil:./
>
>     Then you can just type 'blkid' without the directory. If you can't,
>     there's something you're not telling us.
>
>     What is the output of "type -a blkid"?
>

Who knows.  It is working now

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#5805

FromRobert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid>
Date2012-07-31 13:57 -0500
Message-ID<jv99r1$re3$1@omega-3a.local>
In reply to#5792
On 07/31/2012 12:20 AM, Todd wrote:
> Hi All,
>
>  From the command line (I am going to write a script),
> how can I tell if a partition is a luks partition?

cryptsetup isLuks <device>

Needs read permission on the device, of course.

-- 
Bob Nichols         AT comcast.net I am "RNichols42"

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#5807

FromTodd <Todd@invalid.invalid>
Date2012-07-31 12:31 -0700
Message-ID<jv9bqb$b1n$1@dont-email.me>
In reply to#5805
On 07/31/2012 11:57 AM, Robert Nichols wrote:
> On 07/31/2012 12:20 AM, Todd wrote:
>> Hi All,
>>
>>  From the command line (I am going to write a script),
>> how can I tell if a partition is a luks partition?
>
> cryptsetup isLuks <device>
>
> Needs read permission on the device, of course.
>

Gives me a blank line.  blkid give me info.

# cryptsetup isLuks /dev/sdb1
<blank line>

What am I doing wrong?

# blkid | grep -i sdb1
/dev/sdb1: UUID="cc3b0aed-f926-49eb-960a-c66344fc3066" TYPE="crypto_LUKS"

-T

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#5815

FromLoki Harfagr <l0k1@thedarkdesign.free.fr.INVALID>
Date2012-08-01 10:03 +0000
Message-ID<pan.2012.08.01.10.03.05@thedarkdesign.free.fr.INVALID>
In reply to#5807
Tue, 31 Jul 2012 12:31:22 -0700, Todd did cat :

> On 07/31/2012 11:57 AM, Robert Nichols wrote:
>> On 07/31/2012 12:20 AM, Todd wrote:
>>> Hi All,
>>>
>>>  From the command line (I am going to write a script),
>>> how can I tell if a partition is a luks partition?
>>
>> cryptsetup isLuks <device>
>>
>> Needs read permission on the device, of course.
>>
> 
> Gives me a blank line.  blkid give me info.
> 
> # cryptsetup isLuks /dev/sdb1
> <blank line>
> 
> What am I doing wrong?
> 
> # blkid | grep -i sdb1
> /dev/sdb1: UUID="cc3b0aed-f926-49eb-960a-c66344fc3066" TYPE="crypto_LUKS"
> 
> -T

 you're using a test as a lister :-)
Try:
$ cryptsetup isLuks /dev/sdb1 && echo IMaLUKS

Or alternatively:
$ [[ -L /dev/sdb1 ]] && echo IMaLUKS

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#5824

FromTodd <Todd@invalid.invalid>
Date2012-08-01 11:03 -0700
Message-ID<jvbr26$lnn$1@dont-email.me>
In reply to#5815
On 08/01/2012 03:03 AM, Loki Harfagr wrote:
> Tue, 31 Jul 2012 12:31:22 -0700, Todd did cat :
>
>> On 07/31/2012 11:57 AM, Robert Nichols wrote:
>>> On 07/31/2012 12:20 AM, Todd wrote:
>>>> Hi All,
>>>>
>>>>   From the command line (I am going to write a script),
>>>> how can I tell if a partition is a luks partition?
>>>
>>> cryptsetup isLuks <device>
>>>
>>> Needs read permission on the device, of course.
>>>
>>
>> Gives me a blank line.  blkid give me info.
>>
>> # cryptsetup isLuks /dev/sdb1
>> <blank line>
>>
>> What am I doing wrong?
>>
>> # blkid | grep -i sdb1
>> /dev/sdb1: UUID="cc3b0aed-f926-49eb-960a-c66344fc3066" TYPE="crypto_LUKS"
>>
>> -T
>
>   you're using a test as a lister :-)
> Try:
> $ cryptsetup isLuks /dev/sdb1 && echo IMaLUKS
>
> Or alternatively:
> $ [[ -L /dev/sdb1 ]] && echo IMaLUKS
>

That explains it.  Thank you!

I wonder why it is quiet when it find a Luks device,
but verbose when it does not?

-T

$ cryptsetup isLuks /dev/sdb1; echo $?
Cannot open device /dev/sdb1 for read-only access.
4

$ su
Password:

# cryptsetup isLuks /dev/sdb1; echo $?
0

# cryptsetup isLuks /dev/sda1; echo $?
Device /dev/sda1 is not a valid LUKS device.
1

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