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For example, to pass Ctrl + Alt + F2 to a Linux virtual machine, press Ctrl three times,
then press Alt + F2 . You can also press Alt three times, then press Ctrl + F2 .
The sticky key functionality is available in Virtual Machine Manager during and after
installing a virtual machine.
5.14 xm block-list Device Numbers
Virtual devices are named internally in Xen using the Linux-style major and minor
numbers. This is true even for non-Linux virtual machines. The number returned from
xm block-list is a decimal representation of the combined major and minor
numbers.
For example, if a virtual machine's virtual disk is designated as hda, the number returned
from xm block-list is 768. hda has major number 3 and minor number 0. The
major number is stored as a high-order byte; the minor is the lower byte. A decimal
representation is (3*256)+0 = 768. Another example, sda3 has major number 8 and
minor number 3, so its decimal representation is (8*256)+3 = 2051.
Of course, it is possible to manually work backwards from a number to discover the
human-readable device name. For your reference, some common mappings are listed
in the following table.
/dev/hda
768
/dev/hdb
832
/dev/hdc
5632
/dev/hdd
5696
/dev/sda
2048
/dev/sdb
2064
/dev/sdc
2080
/dev/sdd
2096
/dev/xvda
51712
/dev/xvdb
51728
/dev/xvdc
51744
/dev/xvdd
51760
Virtualization: Configuration Options and Settings
55
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