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Old 17th February 2006, 05:24 AM
rgroth Offline
Registered User
Join Date: Feb 2006
Posts: 3
'Cannot open root device "801"' after kernel update to 2.6.12...?

I updated my kernel to 2.5.12 and ever since I get the following kernel panic in my dmesg. Anyone know what's up?


Linux version 2.6.12-1.1511_FC5 ( (gcc version 4.0.1 20050822 (Red Hat 4.0.1-10)) #1 Thu Aug 25 22:43:57 EDT 2005
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000007fe2fc00 (usable)
BIOS-e820: 000000007fe2fc00 - 000000007fe30000 (ACPI NVS)
BIOS-e820: 000000007fe30000 - 000000007fe40000 (ACPI data)
BIOS-e820: 000000007fe40000 - 000000007fef0000 (ACPI NVS)
BIOS-e820: 000000007fef0000 - 000000007ff00000 (reserved)
BIOS-e820: 00000000fecf0000 - 00000000fecf1000 (reserved)
BIOS-e820: 00000000fed20000 - 00000000feda0000 (reserved)
1150MB HIGHMEM available.
896MB LOWMEM available.
Using x86 segment limits to approximate NX protection
DMI 2.3 present.
ACPI: PM-Timer IO Port: 0x408
Allocating PCI resources starting at 7ff00000 (gap: 7ff00000:7edf0000)
Built 1 zonelists
Kernel command line: auto BOOT_IMAGE=lxser ro root=801 BOOT_FILE=/boot/vmlinuz console=tty0 console=ttyS0,57600 panic=30
Initializing CPU#0
CPU 0 irqstacks, hard=c0501000 soft=c0500000
PID hash table entries: 4096 (order: 12, 65536 bytes)
Detected 2993.260 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: 2072344k/2095292k available (3155k kernel code, 21784k reserved, 737k data, 176k init, 1177788k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 5990.85 BogoMIPS (lpj=11981718)
Security Framework v1.0.0 initialized
SELinux: Initializing.
SELinux: Starting in permissive mode
selinux_register_security: Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
monitor/mwait feature present.
using mwait in idle threads.
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
mtrr: v2.0 (20020519)
CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 04
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
ACPI: setting ELCR to 0200 (from 0ea8)
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=1
PCI: Using configuration type 1
ACPI: Subsystem revision 20050408
ACPI: Interpreter enabled
ACPI: Using PIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
ACPI: Assume root bridge [\_SB_.PCI0] segment is 0
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.2
PCI: Transparent bridge - 0000:00:1e.0
ACPI: Power Resource [URP1] (off)
ACPI: Power Resource [FDDP] (off)
ACPI: Power Resource [LPTP] (off)
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs *3 4 5 6 7 9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 *9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 *7 9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 10 devices
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
PCI: Ignore bogus resource 6 [0:0] of 0000:00:02.0
PCI: Bridge: 0000:00:1e.0
IO window: c000-cfff
MEM window: ff800000-ff8fffff
PREFETCH window: disabled.
pnp: 00:08: ioport range 0x400-0x47f could not be reserved
pnp: 00:08: ioport range 0x680-0x6ff has been reserved
pnp: 00:08: ioport range 0x500-0x53f has been reserved
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac)
apm: overridden by ACPI.
audit: initializing netlink socket (disabled)
audit(1140150151.976:1): initialized
highmem bounce pool size: 64 pages
Total HugeTLB memory allocated, 0
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SELinux: Registering netfilter hooks
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key 50102FC73E0FE060
- User ID: Red Hat, Inc. (Kernel Module GPG key)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
ACPI: CPU0 (power states: C1[C1])
ACPI: Processor [CPU1] (supports 8 throttling states)
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Real Time Clock Driver v1.12
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 865 Chipset.
agpgart: Detected 892K stolen memory.
agpgart: AGP aperture is 128M @ 0xf0000000
PNP: No PS/2 controller found. Probing ports directly.
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 $ 32 ports, IRQ sharing enabled
tyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS0 at I/O 0x3f8 (irq = 4) 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 16384K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
hda: ST3120827AS, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: max request size: 1024KiB
hda: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=16383/255/63
hda: cache flushes supported
hda: hda1 hda2 hda4 < hda5 hda6 hda7 >
ide-floppy driver 0.99.newide
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
mice: PS/2 mouse device common for all mice
md: md driver 0.90.2 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 3.38
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 6, 262144 bytes)
TCP established hash table entries: 262144 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1835008 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI Shortcut mode
ACPI wakeup devices:
ACPI: (supports S0 S1 S4 S5)
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "801" or unknown-block(8,1)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1)
[<c0127f78>] panic+0x45/0x1bc
[<c012927b>] printk+0x1b/0x1f
[<c04cfa86>] mount_block_root+0x9c/0xf6
[<c04cfc38>] mount_root+0x46/0x5a
[<c0100269>] init+0x0/0xf7
[<c04cfc8c>] prepare_namespace+0x40/0x144
[<c0151da2>] autoremove_wake_function+0x0/0x37
[<c0100269>] init+0x0/0xf7
[<c0100342>] init+0xd9/0xf7
[<c01012e8>] kernel_thread_helper+0x0/0xb
[<c01012ed>] kernel_thread_helper+0x5/0xb
<0>Rebooting in 30 seconds..
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