Bug 174378

what does your /etc/fstab look like ?

/etc/fstab is below, this works fine for booting the kernel-2.6.13-1.1532_FC4.

# This file is edited by fstab-sync - see 'man fstab-sync' for details
LABEL=/1                /                       ext3    defaults        1 1
LABEL=/boot1            /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/sdb2               /exchange               vfat    defaults        0 0
/dev/md0                /home                   ext3    defaults        1 2
/dev/proc               /proc                   proc    defaults        0 0
/dev/sys                /sys                    sysfs   defaults        0 0

LABEL=SWAP-sda5         swap                    swap    defaults        0 0

/dev/fd0                /media/floppy           auto    pamconsole,exec,noauto,
managed 0 0
/dev/hdc                /media/cdrecorder       auto    pamconsole,exec,noauto,
managed 0 0

The /boot/grub/grub.conf entries for the working and failing kernel are as 
follows
title Fedora Core (2.6.14-1.1637_FC4smp)
        root (hd0,1)
        kernel /vmlinuz-2.6.14-1.1637_FC4smp ro root=/dev/sda3 rhgb quiet
        initrd /initrd-2.6.14-1.1637_FC4smp.img
title Fedora Core (2.6.13-1.1532_FC4smp)
        root (hd0,1)
        kernel /vmlinuz-2.6.13-1.1532_FC4smp ro root=LABEL=/1 rhgb quiet
        initrd /initrd-2.6.13-1.1532_FC4smp.img

Swapping root=LABEL=/1 for root=/dev/sda3 gives the same result.

fdisk on /dev/sda is as follows

The number of cylinders for this disk is set to 30515.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sda: 251.0 GB, 251000193024 bytes
255 heads, 63 sectors/track, 30515 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1         623     5004216    7  HPFS/NTFS
/dev/sda2             624         654      249007+  83  Linux
/dev/sda3             655        2479    14659312+  83  Linux
/dev/sda4            2480       30515   225199170    5  Extended
/dev/sda5            2480        2723     1959898+  82  Linux swap / Solaris
/dev/sda6            2724       30515   223239208+  fd  Linux raid autodetect


e2label has the following names:
[root@ottawa ~]# e2label /dev/sda2
/boot1
[root@ottawa ~]# e2label /dev/sda3
/1

Any more info needed?

ok, labels look fine.  Can you check your /etc/modprobe.conf to see if that has
an entry for your disk controller ?
I'm wondering if something is missing from your initrd.

Here is my current (from working kernel) /etc/modprobe.conf

#alias eth0 forcedeth
# Add nforce ethernet and sound drivers
# eth0
alias eth0 nvnet
alias forcedeth off
# sound
alias sound-slot-0 nvsound
#alias snd-intel8x0 off
#alias i810_audio off
install nvsound /sbin/modprobe --ignore-install nvsound ; sleep 1; /usr/bin/
nvmix-reg -f /etc/nvmixrc -L >/dev/null 2>&1 || :
remove nvsound { /usr/bin/nvmix-reg -f /etc/nvmixrc -S >/dev/null 2>&1 || : ; }; 
/sbin/modprobe -r --ignore-remove nvsound

#alias scsi_hostadapter sata_nv
#alias snd-card-0 snd-ca0106
#options snd-card-0 index=0
#options snd-ca0106 index=0
#remove snd-ca0106 { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; }; /sbin/
modprobe -r --ignore-remove snd-ca0106
alias usb-controller ehci-hcd
alias usb-controller1 ohci-hcd
alias ieee1394-controller ohci1394


Note that I'm using the nvidia ethernet driver (and the sound card driver is in 
the process of being set up). I've made no other changes

And in addition to the above, running the following command to preload the 
sata_nv and libata modules in the ramdisk doesn't not seem to solve the problem.

mkinitrd --preload sata_nv --with=sata_nv --preload=libata /boot/initrd-2.6.14-
1.1637_FC4smp 2.6.14-1.1637_FC4smp.img

Have just installed kernel 2.6.14-1.1644_FC4smp and this still has the same 
problem.

note that you have the scsi_hostadapter line commented out.
This will make this module not end up in the initrd.
rpm -e the 1644 kernel, uncomment this, and then reinstall the 1644 kernel, and
that *should* fix it.

(In reply to comment #7)
> note that you have the scsi_hostadapter line commented out.
> This will make this module not end up in the initrd.
> rpm -e the 1644 kernel, uncomment this, and then reinstall the 1644 kernel, 
and
> that *should* fix it.
> 

Ugghhh, can't believe that I didn't notice that I had that commented out, must 
have commented one line too many when playing with the nvsound module.

*** Bug 173989 has been marked as a duplicate of this bug. ***

*** Bug 174175 has been marked as a duplicate of this bug. ***

Please not that the duplicates appear to have been a bugzilla problem. I only 
submitted the problem once.