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From: Shiva <shivaramakrishnan740@gmail.com>
To: dm-crypt@saout.de
Subject: [dm-crypt] verity setup on active device.
Date: Fri, 4 Apr 2014 21:34:08 +0000 (UTC)	[thread overview]
Message-ID: <loom.20140404T230751-983@post.gmane.org> (raw)

Hello,

I have a requirement.

I have two devices . (/dev/sdb) and (/dev/sdc).

I have few files in /dev/sdb1. These files are created via nfs.

Now I want to use verity setup tool.

It needs to be able to perform the integrity check on /dev/sdb.

I wanted to  perform integrity check for a partition which is mounted.

1. I did the following.Installed the dm-verity from source.

2. My nfs-share was initially mounted .

(mount /dev/sdb1 /nfs-share)

3.I unmounted it.

4. veritysetup --debug format /dev/sdb /dev/sdc.
Got the "root hash".

5.Used the root hash in this command.
veritysetup --debug create nfs /dev/sdb /dev/sdc "root hash"

Everything works well.
My problem is I am not able to perform step5 for a mounted partition.

I require a mounted partition since nfs-share will use this partition.
(For addition and deletion)

Is there a command switch that needs to be performed in order to achieve this?

Any help/direction is greatly appreciated.

             reply	other threads:[~2014-04-04 21:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-04 21:34 Shiva [this message]
2014-04-05 18:39 ` [dm-crypt] verity setup on active device Milan Broz
2014-04-05 22:11   ` Shivaramakrishnan Vaidyanathan
2014-04-05 22:26     ` Shivaramakrishnan Vaidyanathan
2014-04-06  7:53       ` Milan Broz
2014-04-06 23:13         ` Shivaramakrishnan Vaidyanathan
2014-04-06  7:44     ` Milan Broz
2014-04-07  3:11       ` Shivaramakrishnan Vaidyanathan

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