Hi! I have installed Fedora core 6 on a iSeries model 800 but doesn't boot after first reboot. I have configured NWSD to boot from B or *NWSSTW with same result: Kernel panic: VFS: Unable to mount root fs on 03:03 I have used three virtual disks: /dev/sda1 50 Mb PPC PReP /dev/sdd1 8 Gb / /dev/sde1 2 Gb swap Anybody can help? Thanks a lot Gonzalo. This is the entire boot info: pty: 1024 Unix98 ptys configured iSeries virtual I/O: viocd: iSeries Virtual CD vers 1.04, major 113, max disks 8, hosting partition 0 Uniform CD-ROM driver Revision: 3.12 iSeries virtual I/O: cd iseries/vcda is iSeries resource OPT03 type 6336, model 002 iSeries virtual I/O: ide: Disk vers 1.50, major 3, max disks 20, hosting partition 0 iSeries virtual I/O: Claiming root file system as third partition of first virtuide: opened path to hosting partition 0 iSeries virtual I/O: ide: Currently 5 disks connected Partition check: hda: hda1 iSeries virtual I/O: ide: Disk 00 size 50M, sectors 32, heads 64, cylinders 50, sectsize 512 iSeries virtual I/O: ide: Disk 00 partition 01 start sector 32, # sector 102368 hdb: iSeries virtual I/O: ide: Disk 01 size 21006M, sectors 63, heads 255, cylinders 2678, sectsize 512 hdc: iSeries virtual I/O: ide: Disk 02 size 10001M, sectors 63, heads 255, cylinders 1275, sectsize 512 hdd: hdd1 iSeries virtual I/O: ide: Disk 03 size 8001M, sectors 63, heads 255, cylinders 1020, sectsize 512 iSeries virtual I/O: ide: Disk 03 partition 01 start sector 63, # sector 16386237 hde: hde1 iSeries virtual I/O: ide: Disk 04 size 2000M, sectors 63, heads 255, cylinders 255, sectsize 512 iSeries virtual I/O: ide: Disk 04 partition 01 start sector 63, # sector 4096512 RAMDISK driver initialized: 16 RAM disks of 128000K size 1024 blocksize loop: loaded (max 16 devices) SCSI subsystem driver Revision: 1.00 kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2 kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2 kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2 kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2 viotape driver version 1.0 viotape: init - open path to hosting (0) viotape major is 230 found a tape TAP04 found a tape TAP02 viotape device viotape0 is iSeries resource TAP04 type 6384, model 001 viotape device viotape1 is iSeries resource TAP02 type 9348, model 001 md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. NET4: Linux TCP/IP 1.0 for NET4.0 IGMProtocols: ICMP, UDP, TCP, IP: routing cache hash table of 4096 buckets, 64Kbytes TCP: Hash tables configured (established 131072 bind 65536) Linux IP multicast router 0.06 plus PIM-SM NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. iSeries virtual I/O: Invalid request offset & length iSeries virtual I/O: req->sector: 2, req->nr_sectors: 2 iSeries virtual I/O: major: 3, minor: 3 end_request: I/O error, dev 03:03 (ide), sector 2 EXT3-fs: unable to read superblock iSeries virtual I/O: Invalid request offset & length iSeries virtual I/O: req->sector: 2, req->nr_sectors: 2 iSeries virtual I/O: major: 3, minor: 3 end_request: I/O error, dev 03:03 (ide), sector 2 EXT2-fs: unable to read superblock cramfs: wrong magic iSeries virtual I/O: Invalid request offset & length iSeries virtual I/O: req->sector: 64, req->nr_sectors: 2 iSeries virtual I/O: major: 3, minor: 3 end_request: I/O error, dev 03:03 (ide), sector 64 isofs_read_super: bread failed, dev=03:03, iso_blknum=16, block=32 iSeries virtual I/O: Invalid request offset & length iSeries virtual I/O: req->sector: 16, req->nr_sectors: 2 iSeries virtual I/O: major: 3, minor: 3 end_request: I/O error, dev 03:03 (ide), sector 16 sh-2006: reiserfs read_super_block: bread failed (dev 03:03, block 8, size 1024) iSeries virtual I/O: Invalid request offset & length iSeries virtual I/O: req->sector: 128, req->nr_sectors: 2 iSeries virtual I/O: major: 3, minor: 3 end_request: I/O error, dev 03:03 (ide), sector 128 sh-2006: reiserfs read_super_block: bread failed (dev 03:03, block 64, size 1024) sh-2021: reiserfs_read_super: can not find reiserfs on ide0(3,3) iSeries virtual I/O: Invalid request offset & length iSeries virtual I/O: req->sector: 64, req->nr_sectors: 8 iSeries virtual I/O: major: 3, minor: 3 end_request: I/O error, dev 03:03 (ide), sector 64 iSeries virtual I/O: Invalid request offset & length iSeries virtual I/O: req->sector: 120, req->nr_sectors: 8 iSeries virtual I/O: major: 3, minor: 3 end_request: I/O error, dev 03:03 (ide), sector 120 Kernel panic: VFS: Unable to mount root fs on 03:03 <6>mf.c: Preparing to bounce...