Difference between revisions of "OPS235 Lab 3 Braille"
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# Dump the XML for the virtual machine 'fedora1' into a file: <code>virsh dumpxml fedora1 >fedora1.xml</code> | # Dump the XML for the virtual machine 'fedora1' into a file: <code>virsh dumpxml fedora1 >fedora1.xml</code> | ||
# Examine the file to determine the structure. | # Examine the file to determine the structure. | ||
| − | # Add another virtual disk. Use the filename <code>/var/lib/libvirt/images/fedora1-1.img</code>. | + | # Add another virtual disk to the XML configuration file. Use the filename <code>/var/lib/libvirt/images/fedora1-1.img</code>. |
| + | # Redefine the VM using the XML configuration file: <code>virsh define fedora1.xml</code> | ||
# Create the tile <code>/var/lib/libvirt/images/fedora1-1.img</code> as an empty file with a size of 10G: <code>dd if=/dev/zero of=/var/lib/libvirt/images/fedora1-1.img bs=1G count=10</code> | # Create the tile <code>/var/lib/libvirt/images/fedora1-1.img</code> as an empty file with a size of 10G: <code>dd if=/dev/zero of=/var/lib/libvirt/images/fedora1-1.img bs=1G count=10</code> | ||
# Start the VM. | # Start the VM. | ||
Revision as of 10:47, 24 February 2012
This is a draft only!
It is still under construction and content may change. Do not rely on this information.
It is still under construction and content may change. Do not rely on this information.
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Braille Only
If you are not using a braille reader, please use OPS235 Lab 2 instead of this lab.
If you are not using a braille reader, please use OPS235 Lab 2 instead of this lab.
htp
Wherever this document says "htp", it should be changed to "http". This was done in order to avoid reported problems with some braille readers.
Wherever this document says "htp", it should be changed to "http". This was done in order to avoid reported problems with some braille readers.
Investigation 1: Adding a physical volume
- Stop the VM "fedora1".
- Dump the XML for the virtual machine 'fedora1' into a file:
virsh dumpxml fedora1 >fedora1.xml - Examine the file to determine the structure.
- Add another virtual disk to the XML configuration file. Use the filename
/var/lib/libvirt/images/fedora1-1.img. - Redefine the VM using the XML configuration file:
virsh define fedora1.xml - Create the tile
/var/lib/libvirt/images/fedora1-1.imgas an empty file with a size of 10G:dd if=/dev/zero of=/var/lib/libvirt/images/fedora1-1.img bs=1G count=10 - Start the VM.
- You should now have a new disk,
/dev/vdb - Use
fdiskto create a single primary partition that fills all of the new disk. - Use
pvcreateto format the new partition as a physical volume:pvcreate /dev/vdb1 - Use
vgextendto add the new PV to your volume group:vgextend InsertNameOfYourVGhere /dev/vdb1 - Use
lvextendto extend the size of the root filesystem by 5G:lvextend InsertNameOfYourVGhere/InsertNameOfYourLVhere --size +5G -r- Note that the
-rresizes the filesystem withing the LV and is critically important!
- Note that the
- Confirm that the LV has been resized.
- Record notes about this investigation in your lab book.
