#574900 /usr/sbin/grub-probe: grub-probe should not use mdadm on /dev/mem

Package:
grub-common
Source:
grub2
Description:
GRand Unified Bootloader (common files)
Submitter:
Date:
2010-11-15 10:09:03 UTC
Severity:
normal
#574900#5
Date:
2010-03-21 23:28:59 UTC
From:
To:
Running update-grub.
Searching for GRUB installation directory ... found: /boot/grub
warning: grub-probe can't find drive for /dev/mem.
grub-probe: error: /dev/mem is not a block device.

I just received the above error message from the process of installing an
Unstable kernel on a system that was previously running all Lenny.  The
audit log had the following SE Linux message:

type=AVC msg=audit(1269213218.265:16): avc:  denied  { read } for  pid=4399
comm="mdadm" name="mem" dev=tmpfs ino=781
scontext=unconfined_u:system_r:mdadm_t:s0-s0:c0.c1023
tcontext=system_u:object_r:memory_device_t:s0 tclass=chr_file
type=SYSCALL msg=audit(1269213218.265:16): arch=40000003 syscall=5 success=no
exit=-13 a0=807b240 a1=8000 a2=0 a3=8000 items=0 ppid=4398 pid=4399
auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
tty=(none) ses=4294967295 comm="mdadm" exe="/sbin/mdadm"
subj=unconfined_u:system_r:mdadm_t:s0-s0:c0.c1023 key=(null)
#574900#10
Date:
2010-11-15 10:05:30 UTC
From:
To:
could you supply the output of
sudo sh -x update-grub
and of
cat /proc/mounts