Enable console during kernel boot on Power
On Power systems console should be added the kernel command line in the following order: 'console=tty0 console=hvc0'. The first one is the graphical console. The last one is the serial console. The kernel enables all the consoles pointed through the kernel command line. However, only the last one will receive input/output during kernel boot. All the other consoles will be enabled after the boot. Change-Id: I0069f608e0ab104d3778954e033fb82ed5ea7693
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@ -38,11 +38,18 @@ fi
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# Dig up the initrd and kernel to use.
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# Dig up the initrd and kernel to use.
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select_boot_kernel_initrd $TARGET_ROOT
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select_boot_kernel_initrd $TARGET_ROOT
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# Serial console on Power is hvc0
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if [ "powerpc ppc64 ppc64le" =~ "$ARCH" ] ; then
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SERIAL_CONSOLE="hvc0"
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else
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SERIAL_CONSOLE="ttyS0,115200"
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fi
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sudo sh -c "cat > $CONF <<_EOF_
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sudo sh -c "cat > $CONF <<_EOF_
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DEFAULT linux
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DEFAULT linux
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LABEL linux
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LABEL linux
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KERNEL /boot/$KERNEL
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KERNEL /boot/$KERNEL
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APPEND ro root=LABEL=${DIB_ROOT_LABEL} console=tty0 console=ttyS0,115200 nofb nomodeset vga=normal
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APPEND ro root=LABEL=${DIB_ROOT_LABEL} console=tty0 console=${SERIAL_CONSOLE} nofb nomodeset vga=normal
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INITRD /boot/$RAMDISK
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INITRD /boot/$RAMDISK
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_EOF_"
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_EOF_"
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@ -145,7 +145,17 @@ function install_grub2 {
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echo "GRUB_TIMEOUT=${DIB_GRUB_TIMEOUT:-5}" >>/etc/default/grub
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echo "GRUB_TIMEOUT=${DIB_GRUB_TIMEOUT:-5}" >>/etc/default/grub
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echo 'GRUB_TERMINAL="serial console"' >>/etc/default/grub
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echo 'GRUB_TERMINAL="serial console"' >>/etc/default/grub
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echo 'GRUB_GFXPAYLOAD_LINUX=text' >>/etc/default/grub
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echo 'GRUB_GFXPAYLOAD_LINUX=text' >>/etc/default/grub
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echo 'GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,115200 no_timer_check"' >>/etc/default/grub
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# Serial console on Power is hvc0
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if [ "powerpc ppc64 ppc64le" =~ "$ARCH" ] ; then
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SERIAL_CONSOLE="hvc0"
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else
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SERIAL_CONSOLE="ttyS0,115200"
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fi
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GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=${SERIAL_CONSOLE} no_timer_check"
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echo "GRUB_CMDLINE_LINUX_DEFAULT=\"${GRUB_CMDLINE_LINUX_DEFAULT}\"" >>/etc/default/grub
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echo 'GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"' >>/etc/default/grub
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echo 'GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"' >>/etc/default/grub
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if type grub2-mkconfig >/dev/null; then
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if type grub2-mkconfig >/dev/null; then
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GRUB_MKCONFIG="grub2-mkconfig -o $GRUB_CFG"
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GRUB_MKCONFIG="grub2-mkconfig -o $GRUB_CFG"
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