* bcache + luks
@ 2015-04-10 15:14 arnaud gaboury
2015-04-10 17:58 ` Eric Wheeler
0 siblings, 1 reply; 3+ messages in thread
From: arnaud gaboury @ 2015-04-10 15:14 UTC (permalink / raw)
To: linux-bcache
Here is my device steup, an encrypted backing device:
---------------------------------------------------------
$ lsblk
└─sdd4 sdd4 8:52 bcache
└─bcache0 bcache0 254:0 crypto_LUKS
└─sdd4_crypt dm-7 253:7 btrfs poppy-encrypt
------------------------------------------------------------
I first did bcache, then cryptsetup against /dev/bcache0.
I have a doubt about the order. Is this correct? Or shall I do first
the encryption part for sdd4 thereafter make bcache?
Thank you for help
--
google.com/+arnaudgabourygabx
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: bcache + luks
2015-04-10 15:14 bcache + luks arnaud gaboury
@ 2015-04-10 17:58 ` Eric Wheeler
2015-04-10 19:23 ` arnaud gaboury
0 siblings, 1 reply; 3+ messages in thread
From: Eric Wheeler @ 2015-04-10 17:58 UTC (permalink / raw)
To: arnaud gaboury; +Cc: linux-bcache
On Fri, 10 Apr 2015, arnaud gaboury wrote:
> Here is my device steup, an encrypted backing device:
>
> ---------------------------------------------------------
> $ lsblk
> ??sdd4 sdd4 8:52 bcache
> ??bcache0 bcache0 254:0 crypto_LUKS
> ??sdd4_crypt dm-7 253:7 btrfs poppy-encrypt
> ------------------------------------------------------------
>
> I first did bcache, then cryptsetup against /dev/bcache0.
>
> I have a doubt about the order. Is this correct? Or shall I do first
> the encryption part for sdd4 thereafter make bcache?
>
> Thank you for help
That is the way I would do it. If you were to put LUKS underneath bcache,
then you would also need to LUKS your cache volume if you care about the
privacy of your data.
Also, this prevents bcache from using an unusual backing volume (LUKS),
the configuration of which has probably not been tested very much.
-Eric
--
Eric Wheeler, President eWheeler, Inc. dba Global Linux Security
888-LINUX26 (888-546-8926) Fax: 503-716-3878 PO Box 25107
www.GlobalLinuxSecurity.pro Linux since 1996! Portland, OR 97298
>
> --
>
> google.com/+arnaudgabourygabx
> --
> To unsubscribe from this list: send the line "unsubscribe linux-bcache" in
> the body of a message to majordomo@vger.kernel.org
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>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: bcache + luks
2015-04-10 17:58 ` Eric Wheeler
@ 2015-04-10 19:23 ` arnaud gaboury
0 siblings, 0 replies; 3+ messages in thread
From: arnaud gaboury @ 2015-04-10 19:23 UTC (permalink / raw)
To: Eric Wheeler; +Cc: linux-bcache
On Fri, Apr 10, 2015 at 7:58 PM, Eric Wheeler <bcache@lists.ewheeler.net> wrote:
> On Fri, 10 Apr 2015, arnaud gaboury wrote:
>
>> Here is my device steup, an encrypted backing device:
>>
>> ---------------------------------------------------------
>> $ lsblk
>> ??sdd4 sdd4 8:52 bcache
>> ??bcache0 bcache0 254:0 crypto_LUKS
>> ??sdd4_crypt dm-7 253:7 btrfs poppy-encrypt
>> ------------------------------------------------------------
>>
>> I first did bcache, then cryptsetup against /dev/bcache0.
>>
>> I have a doubt about the order. Is this correct? Or shall I do first
>> the encryption part for sdd4 thereafter make bcache?
>>
>> Thank you for help
>
> That is the way I would do it.
Very good. Thank you
If you were to put LUKS underneath bcache,
> then you would also need to LUKS your cache volume if you care about the
> privacy of your data.
>
> Also, this prevents bcache from using an unusual backing volume (LUKS),
> the configuration of which has probably not been tested very much.
>
> -Eric
>
> --
> Eric Wheeler, President eWheeler, Inc. dba Global Linux Security
> 888-LINUX26 (888-546-8926) Fax: 503-716-3878 PO Box 25107
> www.GlobalLinuxSecurity.pro Linux since 1996! Portland, OR 97298
>
>
>
>>
>> --
>>
>> google.com/+arnaudgabourygabx
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-bcache" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>
--
google.com/+arnaudgabourygabx
^ permalink raw reply [flat|nested] 3+ messages in thread
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