Help - I've got rather stuck. I have a machine that was set up some time ago when SATA, RAID and kernel 2.6 was a slightly exciting thing to do.
It has been running kernel 2.6.7 for a very long time, because any attempt to upgrade to a later kernel failed because in 2.6.7 the original IDE_SATA drivers were used, but after that the SCSI SATA (libata) driver is used instead. This means that my drives change devicename over the upgrade (from he/hdg to sda/sdb I think), which means that the initrd produced my mkinitrd does not work with 2.6.8+ kernels, because it has the wrong device names. I prodded it a bit when 2.6.8 came out but gave up as 2.6.7 seemed to be working fine. However I recently rebooted to find that udev has got upgraded to a version that requires at least 2.6.12 so now my machine is broken. Attempting to install the current 2.6.15 kernel fails with the error that it cannot generate a suitable initrd (which is true, I think). So, I decided that the way to fix this was build my own kernel which didn't need an initrd, because it had the new SCSI-based SATA drivers built-in. I also changed the /etc/mdadm/mdadm.conf file so that the root (md0) device is specified just using UIDs and not device names (as these will change when I reboot with the new kernel). This works fine for the old kernel. However rebooting with the new kernel fails to find a rootfs and dies. Both the old and the new specify root=/dev/md0. The layout is that there are two drives which form a raid 1 mirror. The controller is VIA. They contain a small boot partition then a large LVM2-managed partition for everything else. I am stuck now, as the drives seem to be recognised, but I still have no rootfs, and I don't know why. I managed to capture the console info of the failed boot over serial and post it here in the hope that someone can tell me what the problem is: Linux version 2.6.14 (2.6.14-10.00.Custom) ([EMAIL PROTECTED]) (gcc version 4.0.3 20060115 (prer6 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003fff0000 (usable) BIOS-e820: 000000003fff0000 - 000000003fff3000 (ACPI NVS) BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data) BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 127MB HIGHMEM available. 896MB LOWMEM available. found SMP MP-table at 000f4e10 DMI 2.3 present. ACPI: PM-Timer IO Port: 0x4008 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) Processor #0 6:10 APIC version 16 ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1]) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 2, version 3, address 0xfec00000, GSI 0-23 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level) Enabling APIC mode: Flat. Using 1 I/O APICs Using ACPI (MADT) for SMP configuration information Allocating PCI resources starting at 50000000 (gap: 40000000:bec00000) Built 1 zonelists Kernel command line: root=/dev/md0 ro single console=ttyS1,115200 Initializing CPU#0 PID hash table entries: 4096 (order: 12, 65536 bytes) Detected 2170.352 MHz processor. Using pmtmr for high-res timesource Console: colour VGA+ 80x25 Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) Memory: 1036112k/1048512k available (1537k kernel code, 11620k reserved, 606k data, 156k) Checking if this processor honours the WP bit even in supervisor mode... Ok. Calibrating delay using timer specific routine.. 4342.81 BogoMIPS (lpj=2171405) Security Framework v1.0.0 initialized SELinux: Disabled at boot. Capability LSM initialized Mount-cache hash table entries: 512 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. mtrr: v2.0 (20020519) CPU: AMD Athlon(tm) XP 3000+ stepping 00 Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking 'hlt' instruction... OK. ENABLING IO-APIC IRQs ..TIMER: vector=0x31 pin1=2 pin2=-1 softlockup thread 0 started up. NET: Registered protocol family 16 ACPI: bus type pci registered PCI: PCI BIOS revision 2.10 entry at 0xfa440, last bus=1 PCI: Using configuration type 1 ACPI: Subsystem revision 20050902 ACPI: Interpreter enabled ACPI: Using IOAPIC for interrupt routing ACPI: PCI Root Bridge [PCI0] (0000:00) PCI: Probing PCI hardware (bus 00) ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 7 *10 11 12 14 15) ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 *6 7 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 7 10 *11 12 14 15) ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 *5 6 7 10 11 12 14 15) ACPI: PCI Interrupt Link [ALKA] (IRQs 20) *0, disabled. ACPI: PCI Interrupt Link [ALKB] (IRQs 21) *0, disabled. ACPI: PCI Interrupt Link [ALKC] (IRQs 22) *0, disabled. ACPI: PCI Interrupt Link [ALKD] (IRQs 23) *0, disabled. Linux Plug and Play Support v0.97 (c) Adam Belay pnp: PnP ACPI init pnp: PnP ACPI: found 13 devices PnPBIOS: Disabled by ACPI PNP SCSI subsystem initialized PCI: Using ACPI for IRQ routing PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report pnp: 00:01: ioport range 0x4000-0x407f could not be reserved pnp: 00:01: ioport range 0x40f0-0x40ff could not be reserved pnp: 00:01: ioport range 0x5000-0x500f has been reserved PCI: Bridge: 0000:00:01.0 IO window: 9000-9fff MEM window: e0000000-e1ffffff PREFETCH window: d8000000-dfffffff audit: initializing netlink socket (disabled) audit(1140633612.182:1): initialized highmem bounce pool size: 64 pages VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) Initializing Cryptographic API PCI: Bypassing VIA 8237 APIC De-Assert Message isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12 serio: i8042 AUX port at 0x60,0x64 irq 12 serio: i8042 KBD port at 0x60,0x64 irq 1 Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize ACPI: PCI Interrupt Link [ALKA] BIOS reported IRQ 0, using IRQ 20 ACPI: PCI Interrupt Link [ALKA] enabled at IRQ 20 ACPI: PCI Interrupt 0000:00:0f.0[B] -> Link [ALKA] -> GSI 20 (level, low) -> IRQ 169 PCI: Via IRQ fixup for 0000:00:0f.0, from 11 to 9 sata_via(0000:00:0f.0): routed to hard irq line 9 ata1: SATA max UDMA/133 cmd 0xB800 ctl 0xBC02 bmdma 0xC800 irq 169 ata2: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xC808 irq 169 ata1: dev 0 ATA, max UDMA/133, 234441648 sectors: lba48 ata1: dev 0 configured for UDMA/133 scsi0 : sata_via ata2: dev 0 ATA, max UDMA/133, 234441648 sectors: lba48 ata2: dev 0 configured for UDMA/133 scsi1 : sata_via Vendor: ATA Model: ST3120026AS Rev: 3.18 Type: Direct-Access ANSI SCSI revision: 05 Vendor: ATA Model: ST3120026AS Rev: 3.18 Type: Direct-Access ANSI SCSI revision: 05 md: linear personality registered as nr 1 md: raid0 personality registered as nr 2 md: raid1 personality registered as nr 3 md: md driver 0.90.2 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: bitmap version 3.39 device-mapper: 4.4.0-ioctl (2005-01-12) initialised: [EMAIL PROTECTED] NET: Registered protocol family 2 IP route cache hash table entries: 65536 (order: 6, 262144 bytes) TCP established hash table entries: 262144 (order: 8, 1048576 bytes) TCP bind hash table entries: 65536 (order: 6, 262144 bytes) TCP: Hash tables configured (established 262144 bind 65536) TCP reno registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 NET: Registered protocol family 8 NET: Registered protocol family 20 Using IPI Shortcut mode ACPI wakeup devices: PCI0 USB0 USB1 USB2 USB6 USB7 USB8 USB9 UAR1 LPT1 ACPI: (supports S0 S1 S4 S5) md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(9,0) TIA Wookey -- Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679 work: http://www.aleph1.co.uk/ play: http://www.chaos.org.uk/~wookey/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
