Debugging related settings:
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-debug Get shells during process of booting
+debug Get shells during process of booting, using GNU screen
+grml debug=noscreen Get shells during process of booting, but without using GNU screen
grml nocolor Disable colorized output while booting
grml log Log error messages while booting and
grml testcd Check CD data integrity and md5sums
grml noconsolefont Disable setting of console font (using consolechars)
grml noblank Disable console blanking
grml tsplash Text based bootsplash
+grml noquick Disable grml-quickconfig startup script
grml small Do not start that many consoles
grml wondershaper=eth0,1000,500 Set up basic traffic shaping
grml services={postfix,mysql,...} Start service(s) which have an init-script (/etc/init.d/)
grml swraid Enable automatic assembling of software raid arrays
grml nolvm Disable scanning for Logical Volumes (LVM)
grml lvm Automatically activate Logival Volumes (LVM) during boot
-grml scandelay[=seconds] Delay accessing ISO-device (useful for booting via usb/firewire)
grml cdrom=/dev/... Use specifed device as CD-ROM device (used for mounting the grml-ISO)
grml xmodule=ati|fbdev|i810|mga Use specified X.org-Module (1)
grml xmodule=nv|radeon|savage|s3 Use specified X.org-Module (2)