Hi Milan, Thanks for the reply. > I think the question was about tool to generate hash, > not the target itself. As mentioned by you, I was looking for a tool which generates the root hash (digest) which can be used as a parameter to dmsetup tool. I used sha256sum tool to generate the hash but dmsetup is not accepting this hash. Thanks to Mikulas for providing the link to veritysetup using which I could configure verity target. But still I have some doubts regarding dmsetup & veritysetup 1. What are the difference between configuring a verity target using dmsetup & veritysetup. Can these be used interchangeably? 2. I tried passing the root hash value generated by veritysetup as a parameter to dmsetup but this doesn't work. On doing dmsetup status, the output is showing as the target corrupted (C). I examined dmesg & found the following error [22885.758996] device-mapper: verity: metadata block 62 is corrupted [22885.759001] Buffer I/O error on device dm-1, logical block 1 3. After creating a verity target using "veritysetup" how to test the target for corrupted case (As soon as creating the status is Verified (V)) ? Thanks in advance Pavan > On 05/22/2013 01:07 PM, Marian Csontos wrote: >> On 05/21/2013 05:11 PM, pavankumar.p@xxxxxxxxxxxxxxxxxx wrote: >>> Hello Mandeep, >>> I was trying to download the source code to generate the hash from the following location. But looks like this is moved. Pls share the latest git >>> hub location of the source. >>> http://git.chromium.org/cgi-bin/gitweb.cgi?p=dm-verity.git;a=tree >> Hi Pavan, dm-verity is in upstream kernel tree now: >> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/md/dm-verity.c > > I think the question was about tool to generate hash, > not the target itself. > > In any case, dm-verity is in kernel and veritysetup tool is part of upstream > cryptsetup package. > > Documentation to kernel dm-verity > http://code.google.com/p/cryptsetup/wiki/DMVerity > > And some release notes info about veritysetup (see man page as well) http://code.google.com/p/cryptsetup/wiki/Cryptsetup150 > > Milan > > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
