I tried the 2.3.99-pre8 Kernel, but I cannot load the raid1/5 module. I can only load the raid0 module. # modprobe raid1 /lib/modules/2.3.99-pre8/block/raid1.o: unresolved symbol drive_stat_acct /lib/modules/2.3.99-pre8/block/raid1.o: insmod /lib/modules/2.3.99-pre8/block/raid1.o failed /lib/modules/2.3.99-pre8/block/raid1.o: insmod raid1 failed # modprobe raid5 /lib/modules/2.3.99-pre8/block/raid5.o: unresolved symbol set_bh_page /lib/modules/2.3.99-pre8/block/raid5.o: unresolved symbol drive_stat_acct /lib/modules/2.3.99-pre8/block/raid5.o: insmod /lib/modules/2.3.99-pre8/block/raid5.o failed /lib/modules/2.3.99-pre8/block/raid5.o: insmod raid5 failed # modprobe raid0 # lsmod Module Size Used by raid0 3576 0 (unused) [snip] I'am not on the kernel-ML. Please reply to the RAID-ML, if possible[, too]. Sven