Differences

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--- hypervisor:base:xcp-xapi [2015/03/29 03:24]
admin [Create a VBD for the VDI and plug it]
+++ hypervisor:base:xcp-xapi [2015/03/29 13:06] (current)
admin [kpartx for Mapping Partition Tables]
@@ Line 255: / Line 255: @@
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-===== Create and Access a VDI from Dom0 =====
+===== Create and Access File Based VDI from Dom0 =====
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@@ Line 281: / Line 281: @@
 </code>
+We'll now have a new vhd file at:\\
+//**/run/sr-mount/<sr-uuid>/<vdi-uuid>.vhd**//
+Which, in our example, translates to:\\
+/run/sr-mount/26b9d87b-f344-1c8d-c5c5-a155d4e4e2e0/72e00fc6-98bb-48fe-ab4d-b52d1ef721b5.vhd
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 ==== Create a VBD for the VDI and plug it ====
@@ Line 325: / Line 330: @@
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-==== Using kpartx ====
+==== kpartx for Mapping Partition Tables ====
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+The kpartx command creates device maps from partition tables. Each guest storage image has a partition table embedded in the file.
+We'll first need to install the package if it is not already available.
+<code>
+> apt-get install kpartx
+</code>
+=== Inspect an .img file ===
+kpartx lets you inspect an img file, showing its contained partitions using the -l command:
+<code>
+> kpartx -l /opt/xen/X-Local-ISO/<image_file_name>.img
+loop0p1 : 0 122880 /dev/loop0 8192
+loop0p3 : 0 1536000 /dev/loop0 131072
+loop deleted : /dev/loop0
+</code>
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+=== Add the partition mappings to the recognized devices in /dev/mapper/ ===
+<color darkorange>**THIS DOESN'T WORK!**</color>
+<code>
+> kpartx -av /run/sr-mount/26b9d87b-f344-1c8d-c5c5-a155d4e4e2e0/72e00fc6-98bb-48fe-ab4d-b52d1ef721b5.vhd
+</code>
 ==== END ====
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