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Home > Archive > Backup Software > October 2006 > Image File Verification with Norton Ghost 2003
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Image File Verification with Norton Ghost 2003
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| JOHNCHAP2 2006-10-21, 1:14 am |
| I just got stung with a corrupt (CRC error) image file which I badly
needed. In the future I need to be able to verify the image files I
produce with Norton Ghost 2003. There apparently is an extra step
process to do this, but the poorly written instructions also seem to
suggest that one can do this automatically with command line switches;
e.g., -crc32. I cannot make heads nor tails about which parameters to
use to verify automatically. Can anyone help me with this?
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| Gerard Bok 2006-10-21, 7:13 am |
| On 20 Oct 2006 18:53:17 -0700, "JOHNCHAP2" <z_q-g.-u@cox.net>
wrote:
>I just got stung with a corrupt (CRC error) image file which I badly
>needed. In the future I need to be able to verify the image files I
>produce with Norton Ghost 2003. There apparently is an extra step
>process to do this, but the poorly written instructions also seem to
>suggest that one can do this automatically with command line switches;
>e.g., -crc32. I cannot make heads nor tails about which parameters to
>use to verify automatically. Can anyone help me with this?
First: you can instruct Ghost to ignore the present crc error in
your corrupt file by starting ghost as:
GHOST -crcignore
If you do, you should however not attempt to restore the files to
their original location!
Restore them to some safe place, preferably on a second harddisk.
Once restored, inspect the damage to the files. (Could be just a
single file damaged, could be 'ruined beyond repair' :-)
By much the same way, you can instruct Ghost to add crc
information while making a backup:
GHOST -crc32
Ghost will then create and keep a checksum for every individual
file contained in the backup.
There is, however, an alternative way. (One I prefer myself.)
Make a checksum of the image(s) immediately after Ghost writes
them. MD5 from www.md5summer.com is perfect, but there are many
others. Save the .md5 file along with the ghost images.
At any time, you can easily verify the validity of your backup
files by just running MD5summer.
By the way, Ghost provides much the same functionality:
Ghost -chkimg, <filename>
But that requires Ghost on any system you wish to keep and verify
your images :-)
It is advisable to verify every time you copy or move an image!
--
Kind regards,
Gerard Bok
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| Chuck U. Farley 2006-10-21, 1:18 pm |
| > I just got stung with a corrupt (CRC error) image file which I badly
> needed. In the future I need to be able to verify the image files I
> produce with Norton Ghost 2003. There apparently is an extra step
> process to do this, but the poorly written instructions also seem to
> suggest that one can do this automatically with command line switches;
> e.g., -crc32. I cannot make heads nor tails about which parameters to
> use to verify automatically. Can anyone help me with this?
After you use Gerard Bok's instructions to ignore the CRC error, you might
want to try Options/Image Integrity Check and check the tickbox to perform
an image integrity check every time you backup/restore.
Based on your two posts in here (abs), it seems to me you need to not only
explore the Options section of Ghost 2003 but also to watch the tutorials as
well. Your problems are user-induced.
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| JOHNCHAP2 2006-10-21, 7:17 pm |
| I have been successfully using Ghost over 5 years and my problems are
not user induced; they are Ghost induced. At least in my case use of
the -crcignore which I tried could not overcome the CRC error. The
-crc32 has a bunch of command line switches whose meanings remain
obscure, at least to me.
All that said, I will take a closer look at any tutorials that might be
on the Norton SystemWorks or Norton Ghost disks.
Chuck U. Farley wrote:
>
> After you use Gerard Bok's instructions to ignore the CRC error, you might
> want to try Options/Image Integrity Check and check the tickbox to perform
> an image integrity check every time you backup/restore.
>
> Based on your two posts in here (abs), it seems to me you need to not only
> explore the Options section of Ghost 2003 but also to watch the tutorials as
> well. Your problems are user-induced.
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