Load memtest86+ binary via 'linux16' in grub2 (otherwise it fails)

[grml2usb.git] / grml2usb.8.txt

diff --git a/grml2usb.8.txt b/grml2usb.8.txt
index 995c8a5..d4f4c52 100644 (file)
--- a/grml2usb.8.txt
+++ b/grml2usb.8.txt
@@ -460,7 +460,47 @@ The following message:
 
   '/usr/sbin/grub-install: line 374: [: =: unary operator expected'
 
-This is "normal". Just ignore it.
+This is "normal". Just ignore it. (It usually doesn't appear
+on the second invocation on the same device.)
+
+[[unknown-filesystem]]
+grub-install fails with grub-probe: error: unknown filesystem?!
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following message:
+
+  grub-probe: error: unknown filesystem
+  Auto-detection of a filesystem module failed.
+  Please specify the module with the option `--modules' explicitly.
+
+usually means that the device partition table says something else than the
+filesystem on the device. For example using FAT16 as filesystem type and
+using FAT32 as filesystem on the partition will not work. Either set filesystem
+type to FAT32 or format the partition using FAT16. It is essential that
+device partition table and filesystem use the same filesystem type.
+
+[[mbr-vs-pbr]]
+grub-setup fails after Attempting to install GRUB to a partition instead of the MBR?!
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following message:
+
+  grub-setup: warn: Attempting to install GRUB to a partition instead of the MBR.  This is a BAD idea.
+  grub-setup: warn: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and its use is discouraged.
+  grub-setup: error: Cannot read `/grub/core.img' correctly
+
+appears because recent grub2 versions introduced a regression which avoids that
+grub is being installed into a partition (instead of MBR). We (the grml2usb
+developers) are evaluating the current situation (thinking about installing grub
+into the MBR). To fix this issue in the meanwhile either manually execute
+(adjust '/dev/sdx' to your device of course):
+
+  mount /dev/sdx1 /mnt/test
+  grub-install --force --recheck --no-floppy --root-directory=/mnt/test /dev/sdx
+
+after execution of grml2usb failed (this will will install grub into the MBR of
+the specified device) or consider using the '--syslinux' option until this issue
+is resolved.  Sorry about that.
 
 [[splash-xpm]]
 I'm getting something like "Error: /usr/share/grml2usb/grub/splash.xpm.gz can not be read"!?