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sanboot:transfer [2009/10/29 16:34]
mcb30
sanboot:transfer [2009/10/29 16:39]
mcb30
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     dd if=/dev/sdX of=/​path/​to/​image/​file.img bs=8225280 count=1825     dd if=/dev/sdX of=/​path/​to/​image/​file.img bs=8225280 count=1825
 +
 +{{ :​disk.jpeg?​240x186|A disk}}
  
 where the numbers **8225280** and **1825** should be replaced with the numbers extracted from your own //fdisk// output. where the numbers **8225280** and **1825** should be replaced with the numbers extracted from your own //fdisk// output.
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 This command will extract the relevant portion of the disk to a file (///​path/​to/​image/​file.img//​) on your SAN target. ​ Note that //dd// is reading from ///​dev/​sdX//​ (i.e. the raw disk device) rather than ///​dev/​sdX1//​ (the partition device); we cannot extract the partition alone because we also need the Master Boot Record located at the start of the disk. This command will extract the relevant portion of the disk to a file (///​path/​to/​image/​file.img//​) on your SAN target. ​ Note that //dd// is reading from ///​dev/​sdX//​ (i.e. the raw disk device) rather than ///​dev/​sdX1//​ (the partition device); we cannot extract the partition alone because we also need the Master Boot Record located at the start of the disk.
  
-  * Check that your extracted file is a valid hard disk image, by running //fdisk -l// on the extracted file:+==== Verifying the transferred image ==== 
 + 
 +Check that your extracted file is a valid hard disk image, by running //fdisk -l// on the extracted file:
  
     fdisk -l /​path/​to/​image/​file.img     fdisk -l /​path/​to/​image/​file.img
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 You should see something like: You should see something like:
  
-    You must set cylinders. 
-    You can do this from the extra functions menu. 
-    ​ 
     Disk /​path/​to/​image/​file.img:​ 0 MB, 0 bytes     Disk /​path/​to/​image/​file.img:​ 0 MB, 0 bytes
     255 heads, 63 sectors/​track,​ 0 cylinders     255 heads, 63 sectors/​track,​ 0 cylinders

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