Differences

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--- linux:grub [2020/08/16 22:40] – created Wulf Rajek
+++ linux:grub [2023/05/29 11:55] (current) – external edit 127.0.0.1
@@ Line 18: / Line 18: @@
 GRUB_TERMINAL=console
 #GRUB_GFXMODE="1920x1080x32"
+#GRUB_GFXMODE=1920x1080,1024x768x32,auto
 GRUB_GFXPAYLOAD_LINUX="keep"
 GRUB_DISABLE_OS_PROBER=true
@@ Line 26: / Line 27: @@
 #640x480
 </code>
+GRUB_GFXPAYLOAD_LINUX="keep" - keeps the resolution and avoids plymouth flickering
+GRUB_CMDLINE_LINUX="quiet" - lowers log level and boot output
+GRUB_CMDLINE_LINUX="splash" - shows plymouth splash screen/animation if installed
+GRUB_CMDLINE_LINUX="vga=current" - keeps current vga resolution - other values in table below
+GRUB_CMDLINE_LINUX="loglevel=0 rd.systemd.show_status=false rd.udev.log_priority=3" - lowers loglevel even further than quiet
+GRUB_CMDLINE_LINUX="vt.global_cursor_default=0" - disable blinking cursor
 <code>
 sudo update-grub
 </code>
+After a boot entry has been selected in GRUB2, for a short time (1-2 sec) another screen is displayed which shows:
+<code>
+Loading linux...
+Loading initial ramdisk ...
+</code>
+To suppress this output, edit /etc/grub.d/10_linux
+<code>
+quiet_boot=0
+and comment out all instances of:
+#  if [ x"$quiet_boot" = x0 ] || [ x"$type" != xsimple ]; then
+#    message="$(gettext_printf "Loading Linux %s ..." ${version})"
+#    sed "s/^/$submenu_indentation/" << EOF
+#       echo    '$(echo "$message" | grub_quote)'
+#EOF
+#  fi
+then
+sudo update-grub
+</code>
+Available VGA Modes:
+^Color bits ^Colors ^640×480 ^800×600 ^1024×768 ^1280×1024 ^1400×1050 ^1600×1200^
+|8 bits 	|256 colors 	|769 	|771 	|773 	|775
+|15 bits 	|32,768 colors 	|784 	|787 	|790 	|793
+|16 bits 	|65,536 colors 	|785 	|788 	|791 	|794 	|834 	|884
+|24 bits 	|16,777,216 colors 	|786 	|789 	|792 	|795