Hi... there is a compile error in kpartx of multipath tools with kernel 2.6.12-rc4 here is the output make[1]: Entering directory `/backup/iSCSI/multipath-tools-0.4.5-pre2/kpartx' rm -f core *.o *.gz cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o bsd.o bsd.c cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o dos.o dos.c cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o kpartx.o kpartx.c cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o solaris.o solaris.c cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o unixware.o unixware.c cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o gpt.o gpt.c cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o crc32.o crc32.c cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I. -c -o lopart.o lopart.c In file included from lopart.c:29: /usr/include/linux/loop.h:88:2: #error "Wrong dev_t in loop.h" make[1]: *** [lopart.o] Error 1 make[1]: Leaving directory `/backup/iSCSI/multipath-tools-0.4.5-pre2/kpartx' make: *** [recurse] Error 2