ref-manual: change SYSLINUX_ROOT to ROOT_VM for DISK_SIGNATURE variable

The SYSLINUX_ROOT variable was renamed to ROOT_VM in krogoth.

(From yocto-docs rev: c4bbe8bc4967dd631b939f6806d65e2862df3424)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Jonathan Liu authored and Richard Purdie committed 2016-08-19 08:40:23 +01:00
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commit dfb899d9c3
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@@ -3141,15 +3141,15 @@
by UUID to allow the kernel to locate the root device
even if the device name changes due to differences in
hardware configuration.
By default, <filename>SYSLINUX_ROOT</filename> is set
By default, <filename>ROOT_VM</filename> is set
as follows:
<literallayout class='monospaced'>
SYSLINUX_ROOT = "root=/dev/sda2"
ROOT_VM ?= "root=/dev/sda2"
</literallayout>
However, you can change this to locate the root device
using the disk signature instead:
<literallayout class='monospaced'>
SYSLINUX_ROOT = "root=PARTUUID=${DISK_SIGNATURE}-02"
ROOT_VM = "root=PARTUUID=${DISK_SIGNATURE}-02"
</literallayout>
</para>