The boot messages is below: ..... megaraid:v107 (december 22.1999) megaraid:found 0x8086:0x1960:in 03:0b.1 megaraid:board configure for I2O .ignoring this card.reconfigure the card megaraid:in the bios for "mass storage" to use it with the driver. linux pcmcia card services 3.1.22 options:[pci][cardbus][pw] i2o_scsi.c:version 0.0.1 chain_pool:0bytes@f7be0b60 (512 byte buffers X4 can_querue X0 i2o controllers) net4:linux tcp/ip 1.0 for net4.0 ip protocols:icmp,udp,tcp,igmp ip:routing cache hash table of 16384 buckets. 128Kbytes tcp:hash tables configured (establiched 131072 bind 65536) net4:unix domain socket 1.0/smp for linux net4. kmen_create:forcing size word alignment.nfs_fh ds:no socket drivers locaded! vfs:cannot open root device "801" or 08:01 Please append a correct "root=" boot option ........... kernel panic.... The kernel-2.2.18 can run on my server very well.My server is DELL 6450/550 with 4G MEM and 4 CPU,I also have 2 Raid-5(DELL Powervault 210s) with 1.6 TG storage. please help me! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/