From 0b9c8e5855600a0e8a7a3a8b755b0882fb784361 Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Wed, 11 Nov 2015 15:22:12 -0800 Subject: [PATCH] grub: disable console blanking The console often contains very useful information in the event of a hard crash, in such situations there's no ability to unblank the console via keypress because the kernel won't handle the interrupt. Since CoreOS is a server/cluster operating system, there won't generally be monitors connected benefitting from a blanked console. Disabling the blanking altogether allows the frame buffer contents to always be visible, even when the kernel can't handle keypresses. --- build_library/grub.cfg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/build_library/grub.cfg b/build_library/grub.cfg index 7af64ae4a0..0e3b2ce0f0 100644 --- a/build_library/grub.cfg +++ b/build_library/grub.cfg @@ -77,7 +77,7 @@ else fi # Assemble the options applicable to all the kernels below -set linux_cmdline="rootflags=rw mount.usrflags=ro $linux_root $linux_console $first_boot $oem_id $linux_append" +set linux_cmdline="rootflags=rw mount.usrflags=ro consoleblank=0 $linux_root $linux_console $first_boot $oem_id $linux_append" menuentry "CoreOS default" --id=coreos { gptprio.next -d usr -u usr_uuid