Package: linux-image-2.6.18-6-686Version: 2.6.18.dfsg.1-18etch1 Ibm server6 disk in raid51 HBA Fiber Channel (qla2xxx) On the boot of my linux image, 1 times on 3 it works. When it works My local disk is sda $ dmesg ...qla2xxx 0000:04:04.0: Found an ISP2312, irq 201, iobase 0xf8842000 qla2xxx 0000:04:04.0: Configuring PCI space... qla2xxx 0000:04:04.0: Configure NVRAM parameters... qla2xxx 0000:04:04.0: Verifying loaded RISC code... scsi1 : IBM PCI ServeRAID 7.12.05 Build 761 ICH5: IDE controller at PCI slot 0000:00:1f.1 ACPI: Unable to derive IRQ for device 0000:00:1f.1 ACPI: PCI Interrupt 0000:00:1f.1[A]: no GSI ICH5: chipset revision 2 ICH5: not 100% native mode: will probe irqs later ide0: BM-DMA at 0x0480-0x0487, BIOS settings: hda:DMA, hdb:DMA Probing IDE interface ide0... Vendor: IBM Model: SERVERAID Rev: 1.00 Type: Direct-Access ANSI SCSI revision: 02 Vendor: IBM Model: SERVERAID Rev: 1.00 Type: Processor ANSI SCSI revision: 02 SCSI device sda: 213288960 512-byte hdwr sectors (109204 MB) sda: assuming Write Enabled sda: assuming drive cache: write through SCSI device sda: 213288960 512-byte hdwr sectors (109204 MB) sda: assuming Write Enabled sda: assuming drive cache: write through sda: sda1 sda2 sda3 sda4 < sda5 sda6<5> Vendor: IBM Model: 40K sda76480a S320 0 Rev: 1 Type: Processor ANSI SCSI revision: 02 sda8 > sd 1:0:0:0: Attached scsi disk sda qla2xxx 0000:04:04.0: Allocated (412 KB) for firmware dump... qla2xxx 0000:04:04.0: LIP reset occured (f7f7). qla2xxx 0000:04:04.0: Waiting for LIP to complete... usb 3-2: new full speed USB device using uhci_hcd and address 2 usb 3-2: configuration #1 chosen from 1 choice usbcore: registered new driver hiddev input: IBM PPC I/F as /class/input/input1 input: USB HID v1.10 Keyboard [IBM PPC I/F] on usb-0000:00:1d.1-2 input: IBM PPC I/F as /class/input/input2 input: USB HID v1.10 Mouse [IBM PPC I/F] on usb-0000:00:1d.1-2 usbcore: registered new driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver hda: HL-DT-STCD-RW/DVD DRIVE GCC-4244N, ATAPI CD/DVD-ROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 qla2xxx 0000:04:04.0: LOOP UP detected (2 Gbps). qla2xxx 0000:04:04.0: Topology - (F_Port), Host Loop address 0xffff scsi0 : qla2xxx qla2xxx 0000:04:04.0: QLogic Fibre Channel HBA Driver: 8.01.07-k1 QLogic QLA2340 - 133MHz PCI-X to 2Gb FC, Single Channel ISP2312: PCI-X (133 MHz) @ 0000:04:04.0 hdma-, host#=0, fw=3.03.20 IPX Vendor: IBM Model: 1722-600 Rev: 0520 Type: Direct-Access ANSI SCSI revision: 03 SCSI device sdb: 1428495360 512-byte hdwr sectors (731390 MB) sdb: Write Protect is off sdb: Mode Sense: 77 00 10 08 SCSI device sdb: drive cache: write back w/ FUA SCSI device sdb: 1428495360 512-byte hdwr sectors (731390 MB) sdb: Write Protect is off sdb: Mode Sense: 77 00 10 08 SCSI device sdb: drive cache: write back w/ FUA sdb:<6>hda: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33) Uniform CD-ROM driver Revision: 3.20 sdb1 sd 0:0:0:0: Attached scsi disk sdb Vendor: IBM Model: Universal Xport Rev: 0520 Type: Direct-Access ANSI SCSI revision: 03 Vendor: IBM Model: 1722-600 Rev: 0520 Type: Direct-Access ANSI SCSI revision: 03 SCSI device sdc: 1428495360 512-byte hdwr sectors (731390 MB) sdc: Write Protect is off sdc: Mode Sense: 77 00 10 08 SCSI device sdc: drive cache: write back w/ FUA SCSI device sdc: 1428495360 512-byte hdwr sectors (731390 MB) sdc: Write Protect is off sdc: Mode Sense: 77 00 10 08 SCSI device sdc: drive cache: write back w/ FUA sdc: sdc1 sd 0:0:1:0: Attached scsi disk sdc Vendor: IBM Model: Universal Xport Rev: 0520 Type: Direct-Access ANSI SCSI revision: 03 $ lsscsi[0:0:0:1] disk IBM 1722-600 0520 /dev/sdb [0:0:1:1] disk IBM 1722-600 0520 /dev/sdc [1:0:0:0] disk IBM SERVERAID 1.00 /dev/sda [1:0:15:0] process IBM SERVERAID 1.00 - [1:2:8:0] process IBM 40K6480a S320 0 1 - When it works not, it stop the following message: Begin: Waiting for root file system... and my local disk is sdb or sdc It detect the qla2xxx before the local disk. Thanks