boot-directdisk.bbclass: use rootfs UUID by default

This changes the default SYSLINUX_ROOTFS such that the rootfs is no
longer expected under a fixed device path. Instead, the UUID is used
to find it. This makes the resulting .hdddirect (and thus also the
vdi/vdmk/qcow2 images derived from that) more flexible.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/boot-directdisk.bbclass b/meta/classes/boot-directdisk.bbclass
index 600e21abcfee68836b76822492631c0b9eb638f2..7cb0ab071f9b003b3a2a183ed0eff73acd350d64 100644 (file)
--- a/meta/classes/boot-directdisk.bbclass
+++ b/meta/classes/boot-directdisk.bbclass
@@ -60,7 +60,7 @@ inherit ${EFI_CLASS}
 
 AUTO_SYSLINUXCFG = "1"
 DISK_SIGNATURE ?= "${DISK_SIGNATURE_GENERATED}"
-SYSLINUX_ROOT ?= "root=/dev/sda2"
+SYSLINUX_ROOT ?= "root=UUID=<<uuid-of-rootfs>>"
 SYSLINUX_TIMEOUT ?= "10"
 
 IS_VM = '${@bb.utils.contains_any("IMAGE_FSTYPES", ["vmdk", "vdi", "qcow2"], "true", "false", d)}'