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SubjectRe: Kernel Panic + Intel SATA
linux-os (Dick Johnson) wrote:

>On Wed, 26 Oct 2005, [iso-8859-1] Márcio Oliveira wrote:
>
>
>
>>Hi there!
>>
>> I have a IBM ThinkPad t43 running Fedora Core Linux 4 and kernel
>>2.6.12-1.146_FC4. I recompiled the kernel (2.6.13.4 - kernel.org) and I
>>am geting the following message when the computer boots:
>>
>>Creating root device
>>mkrootdev: label / not found
>>
>>
>
>This label was no good it needs to be /dev/sda6 from your fstab
>You will need to put the device name in /boot/*/*.conf lilo or
>grub instead on "label"
>
>
yeah, I try to boot it using "root=/dev/sda6" instead "root=LABEL=/"
parameter, but the system still not booting...

>
>
>>Mounting root filesystem
>>mount: error 2 mouting ext3
>>
>>
>
>Error 2 == ENOENT
>
>

ENOENT? What it means?

>
>
>>Switchimg to new root
>>ERROR opening /dev/console!!!!: 2
>>switchroot: mount failed: 22
>>
>>
>
>Error 22 = EINVAL
>
>

EINVAL? What it means?

>
>
>>Kernel Panic - not syncing to kill init!
>>
>> I added the fdisk command to the initrd file and the init script
>>executes it every boot to check if the kernel was recognizing the SATA
>>disk. All partitions are listed in the boot process and the disk is
>>recognized without problems, but the kernel still not able to mount the
>>root partition:
>>
>>scsi0: ata_piix
>>...
>>...
>>Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
>>
>>Disk /dev/sda: 60.0 GB, 60011642880 bytes
>>255 heads, 63 sectors/track, 7296 cylinders
>>Units = cylinders of 16065 * 512 = 8225280 bytes
>>
>> Device Boot Start End Blocks Id System
>>/dev/sda1 * 1 1913 15361888+ 7 HPFS/NTFS
>>Partition 1 does not end on cylinder boundary.
>>/dev/sda2 6778 7296 4165560 12 Compaq diagnostics
>>Partition 2 does not end on cylinder boundary.
>>/dev/sda3 1914 1929 128520 83 Linux
>>/dev/sda4 1930 6777 38941560 5 Extended
>>/dev/sda5 1930 2843 7341673+ 8e Linux LVM
>>/dev/sda6 2844 3235 3148708+ 83 Linux
>>/dev/sda7 3236 6777 28451083+ b W95 FAT32
>>
>>Partition table entries are not in disk order
>>
>> I also checked the initrd file and all seems ok.
>> Thinks I made:
>>
>>- compiled the kernel with ext3 modular support;
>>- compiled the kernel with ext3 built-in support;
>>- checked the modules loaded in the initrd;
>>- rebuilded and customized the initrd;
>>- checked if the SATA controller is recognized at boot time;
>>- tested fstab with and without "LABEL" partition name.
>>
>>Any idea?
>>
>> Related Files:
>>
>>/etc/fstab:
>>
>># This file is edited by fstab-sync - see 'man fstab-sync' for details
>>/dev/sda6 / ext3
>>defaults 1 1
>>#LABEL=/ / ext3 defaults 1 1
>>#LABEL=/boot /boot ext3 defaults 1 2
>>/dev/sda3 /boot ext3 defaults 1 2
>>/dev/devpts /dev/pts devpts gid=5,mode=620 0 0
>>/dev/shm /dev/shm tmpfs defaults 0 0
>>/dev/proc /proc proc defaults 0 0
>>/dev/sys /sys sysfs defaults 0 0
>>/dev/VG00/usr /usr ext3 defaults 1 2
>>/dev/VG00/var /var ext3 defaults 1 2
>>/dev/VG00/swap swap swap defaults 0 0
>>/dev/sda7 /mnt/windows vfat user,defaults 0 0
>>/dev/hdc /media/cdrecorder auto
>>pamconsole,exec,noauto,managed 0 0
>>
>>/boot/grub/menu.lst
>>
>>title Fedora Core (2.6.13-4)
>> root (hd0,2)
>> kernel /vmlinuz-2.6.13.4-ext3 ro root=LABEL=/ hda=noprobe 1
>> initrd /initrd-2.6.13.4-ext3.img
>>
>>*** I tested the root=LABEL=/ and root=/dev/sda6 kernel comand options.
>>
>>Initrd file contents:
>>
>>./sbin
>>./loopfs
>>./proc
>>./init
>>./sysroot
>>./bin
>>./bin/hotplug
>>./bin/nash
>>./bin/udev
>>./bin/fdisk
>>./bin/insmod
>>./bin/udevstart
>>./bin/modprobe
>>./dev
>>./dev/tty3
>>./dev/tty4
>>./dev/tty1
>>./dev/console
>>./dev/tty2
>>./dev/null
>>./dev/ram
>>./dev/systty
>>./sys
>>./lib
>>./lib/libc.so.6
>>./lib/ld-2.3.5.so
>>./lib/scsi_mod.ko
>>./lib/ld-linux.so.2
>>./lib/sd_mod.ko
>>./lib/libc-2.3.5.so
>>./lib/dm-mod.ko
>>./lib/ata_piix.ko
>>./lib/libata.ko
>>./etc
>>./etc/udev
>>./etc/udev/udev.conf
>>
>>/init initrd file:
>>
>>#!/bin/nash
>>mount -t proc /proc /proc
>>setquiet
>>echo Mounted /proc filesystem
>>echo Mounting sysfs
>>mount -t sysfs /sys /sys
>>echo Creating /dev
>>mount -o mode=0755 -t tmpfs /dev /dev
>>mknod /dev/console c 5 1
>>mknod /dev/null c 1 3
>>mknod /dev/zero c 1 5
>>mkdir /dev/pts
>>mkdir /dev/shm
>>echo Starting udev
>>/sbin/udevstart
>>echo -n "/sbin/hotplug" > /proc/sys/kernel/hotplug
>>echo "Loading scsi_mod.ko module"
>>insmod /lib/scsi_mod.ko
>>echo "Loading sd_mod.ko module"
>>insmod /lib/sd_mod.ko
>>echo "Loading libata.ko module"
>>insmod /lib/libata.ko
>>echo "Loading ata_piix.ko module"
>>insmod /lib/ata_piix.ko
>>echo "Loading dm-mod.ko module"
>>insmod /lib/dm-mod.ko
>>sleep 10
>>/sbin/fdisk -l
>>sleep 10
>>/sbin/udevstart
>>echo Creating root device
>>mkrootdev /dev/root
>>echo Mounting root filesystem
>>mount -o defaults --ro -t ext3 /dev/root /sysroot
>>echo Switching to new root
>>switchroot --movedev /sysroot
>>
>>
>>-
>>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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>>Please read the FAQ at http://www.tux.org/lkml/
>>
>>
>>
>
>Cheers,
>Dick Johnson
>Penguin : Linux version 2.6.13.4 on an i686 machine (5589.55 BogoMips).
>Warning : 98.36% of all statistics are fiction.
>
>****************************************************************
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>
>Thank you.
>
>
This is very strange, at the boot time the system can show the disk
partitions as I said, but cannot mount it. I tryed to compile the
following kernel versions: 2.6.12 (kernel.org), 2.6.11 (fedora core 4),
2.6.12 (fedora core 4) and 2.6.13 (fedora core 4) and all of it shows
the error message when the system is trying to mount the root partition
at boot time. Any more idea about what should I do?

Thanks.
Marcio Oliveira.
-
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