Unable to boot after updating to kernel-3.1.4-1 in fedora 16

[merkava]

hi guys,

I was using kernel-3.1.2-1 in fedora 16. then updated to kernel-3.1.4-1. after reboot now grub shows command prompt instead of boot menu. i tried to load manually with:

set root=(hd0,msdos3)
linux /vmlinuz-3.1.4-1.fc16.x86_64
initrd /initramfs-3.1.4-1.fc16.x86_64.img

but in the middle of booting it shows something like kernel panic and stops. I tried this with previous kernel (3.1.2-1) but it shows the same output. here is my grub.cfg:

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}


set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora (3.1.4-1.fc16.x86_64)' --class fedora --class gnu-linux --class gnu --class os {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo 'Loading Fedora (3.1.4-1.fc16.x86_64) ...'
    linux    /vmlinuz-3.1.4-1.fc16.x86_64 root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo 'Loading initial ramdisk ...'
    initrd /initramfs-3.1.4-1.fc16.x86_64.img
menuentry 'Fedora (3.1.2-1.fc16.x86_64)' --class fedora --class gnu-linux --class gnu --class os {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo 'Loading Fedora (3.1.2-1.fc16.x86_64) ...'
    linux    /vmlinuz-3.1.2-1.fc16.x86_64 root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo 'Loading initial ramdisk ...'
    initrd /initramfs-3.1.2-1.fc16.x86_64.img
}
submenu "Xen 4.1.2" {
menuentry 'Fedora Linux, with Xen 4.1.2 and Linux 3.1.4-1.fc16.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen 4.1.2 ...'
    multiboot    /xen-4.1.2.gz placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
menuentry 'Fedora Linux, with Xen 4.1.2 and Linux 3.1.4-1.fc16.x86_64 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen 4.1.2 ...'
    multiboot    /xen-4.1.2.gz placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro single rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
}
submenu "Xen syms-4.1.2" {
menuentry 'Fedora Linux, with Xen syms-4.1.2 and Linux 3.1.4-1.fc16.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen syms-4.1.2 ...'
    multiboot    /xen-syms-4.1.2 placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
menuentry 'Fedora Linux, with Xen syms-4.1.2 and Linux 3.1.4-1.fc16.x86_64 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen syms-4.1.2 ...'
    multiboot    /xen-syms-4.1.2 placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro single rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
}
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" --class windows --class os {
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos1)'
    search --no-floppy --fs-uuid --set=root 0064D65C64D653CE
    drivemap -s (hd0) ${root}
    chainloader +1
}

Could anyone help?
-----------------------------------------------
[Edit] However I I tested now, I can boot windows with:

set root=(hd0, msdos1)
chainloader +1
boot

-----------------------------------------------
[Edit] Here is the screenshot:

[Dimer]

I get Kernel Panic too

[AdamW]

dimer: your problem looks like something different.

merkava: you have to pass a root= kernel parameter (on the 'linux /boot/vmlinuz blah blah' line) to tell dracut where the system root partition is, or it'll never manage to start up right. if you look at your grub.cfg, you can see this parameter:

root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df

so try adding that to your hand-boot attempt.

[merkava]

yes I changed the kernel parameters, and it boots. after that I use grub2-mkconfig to regenerate grub.cfg