+grub-install complains about /sbin/grub-install and/or xfs_freeze?!
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following message:
+
+ You shouldn't call /sbin/grub-install. Please call /usr/sbin/grub-install instead!
+ xfs_freeze: specified file ["/tmp/tmpqaBK6z/boot/grub"] is not on an XFS filesystem
+
+... is "normal". grub-install sends those messages to stderr. To avoid hiding any
+possible real error messages grml2usb doesn't ignore those messages.
+
+grub-install complains about /boot/grub/device.map?!
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following message:
+
+ grub-probe: error: Cannot open `/boot/grub/device.map'
+
+... is "normal" (at least with grub1). This isn't a problem, because the
+device.map file will be generated on the target device anyway.
+
+grub-install complains about a unary operator?!
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following message:
+
+ '/usr/sbin/grub-install: line 374: [: =: unary operator expected'
+
+... is "normal". Just ignore it.
+
+I'm getting something like "Error: /usr/share/grml2usb/grub/splash.xpm.gz can not be read"!?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Looks like you've only the grml2usb script itself available. Please make sure
+you've the grml2usb Debian package installed. The most resent stable version is
+available via link:http://deb.grml.org/[the grml-testing Debian repository]. If
+you do not have a Debian system please see section <<X5,Where can I get
+grml2usb?>> in this FAQ.
+