Did you get a chance to verify what Ralf and Arno asked for ? I'd too, be interested to know the findings. In the initial post, you did not mention what file system you were on ? Also, interesting is Ralf's point. Are you copying the file while it is opened by another process ? Ritesh On Mon, 2015-11-30 at 13:47 +0100, Ralf Ramsauer wrote: > Hi Sumit, > > a change of the checksum implies that the source and destination file > differ. The reason why it differs is another question. > Does the checksum also differ if you copy it from unencrypted to > unencrypted? > > First, please check your dmesg log if something suspicious occurs > during the copy process. A hard drive failure might also explain your > problem. As you're using VMs, check the dmesg of the hypervisor > machine which accesses the actual hardware. > > Second, ensure that the source file is not changed during the copy > process and also not afterwards when comparing the checksums. Same > applies to the destination. You might want to use 'lsof' to check if > some process is accessing the file. > > Just a guess - ...you mentioned VMs and a file of around 5GB... > Sounds like you're trying to copy a VM image, eh? > If so, make sure that your virtualization software does not touch the > file during copy. > > Cheers > Ralf > > On 11/30/2015 10:19 AM, Sumit Kumar wrote: > > I am having a LUKS encrypted Linux file system (dmCrypt). When I > > copy a huge file, around 5 GB of file, from un-encrypted linux file > > system to LUKS encrypted linux file system then the target copied > > file MD5 changed. > > I am not sure does it corrupting the file as the MD5 changed? > > I am using CentOS 6.5 and working on VMs not on physical machine. > > Any help will be greatly appreciated . > > > > -- > > Thanks & Regards > > Sumit Kumar > > > > > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@xxxxxxxx > > http://www.saout.de/mailman/listinfo/dm-crypt > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt -- Given the large number of mailing lists I follow, I request you to CC me in replies for quicker response
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