VirtualBox

Changes between Version 2 and Version 3 of Ticket #15552, comment 1


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Timestamp:
Jun 28, 2016 8:41:20 AM (8 years ago)
Author:
lfmeloman

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  • Ticket #15552, comment 1

    v2 v3  
    1212</dev/sdb split -b $((1024*1024)) --filter=md5sum >sums-guest.txt
    1313}}}
    14 There The image hierarchy is not broken. I checked that the output of `VBoxManage showhdinfo` and `detail vdisk` matches for each vhd file.
    15 
    16 To compare the contents of the block devices I calculate md5sum of each 1Mb chunk using cygwin and put it into a text file, then compare the text files:
    17 
    18 {{{
    19 # on host
    20 </dev/sdd split -b $((1024*1024)) --filter=md5sum >sums-host.txt
    21 
    22 # on guest
    23 </dev/sdb split -b $((1024*1024)) --filter=md5sum >sums-guest.txt
    24 }}}
    2514
    2615After repeaded attach/detach vdisk and guest boots I can tell that OS does not write to the disk (because I used the diskpart command `att vol set readonly`). Each incarnation of sums-host or sums-guest does not differ from the previous one, but there's about 2000 different lines between sums-host and sums-guest

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