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stupefiedgenius
n00b
Joined: 13 Jul 2006
Posts: 5
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 Posted: Thu Jul 13, 2006 11:48 pm Post subject: [Solved] VFS Kernel Panic 2.6.16-r12 |
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Ok admittedly, I am new to linux.
I used the gentoo-2006.0-minimal-x86 CD in conjunction with Knoppix 3.6 (using the linux 2.6 kernel by booting linux26)
For the most part I followed the instructions verbatim here and here. I do so by myself up until Knoppix froze right before installing Grub and I asked my friend, a Gentoo enthusiast to help me chroot back in and with the completion of the installation.
Current problem (that neither of us and much googling didn't solve):
Boot>Grub>select Gentoo w/ genkernel:
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blah blah blah
ACPI: (supports S0 S1 S5)
Kernel panic - not syncing: VFS: Unable to mount fs on unknown-block(0,0)
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Now on a hunch my friend used SSH to connect to my machine and compiled a kernel manually for me, I get this error when trying to boot Gentoo experimental:
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ACPI: (supports S0 S1 S5)
VFS: Cannot open root device "hda9" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
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Specs:
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Pentium III 800Mhz (coppermine)
256MB PC100 RAM
Onboard Intel i810 video + audio
Linksys WMP11 PCI Wireless-B card
LG 4x CD burner
Samsung DVD reader
Maxtor Diamondmax 200GB
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Partitions (using GParted live-cd):
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hda1 M$ XP
hda2 ntfs "downloads"
hda3 extended
hda5 ntfs blank
hda6 ext2 knoppix home (only accessible when I boot using the 2.4 kernel)
hda7 ext2 Gentoo boot
hda8 linux-swap (currently Knoppix jacked this)
hda9 ext3 Gentoo root
hda10 fat32 Knoppix swap
hda11-15 blank (I was going to try re-installing Gentoo after Knoppix froze)
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/boot/grub/grub.conf
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default 0
timeout 30
splashimage=(hd0,6)/grub/splash.xpm.gz
title=Gentoo Linux 2.6.12-12 test
root (hd0,6)
kernel /boot/kernel-genkernel-x86-2.6.16-gentoo-r12 root=/dev/hda9
initrd /boot/initramfs-genkernel-x86-2.6-genkernel-r12
title=Gentoo Linux 2.6.16-r2 experimental setup
root (hd0,6)
kernel (hd0,6)/boot/kernel-genkernel-x86-2.6.16-gentoo-r12-tmz root=/dev/hda9
title=Gentoo Linux 2.6.16-r12 genkernel
root (hd0,6)
kernel /boot/kernel-genkernel-x86-2.6.16-gentoo-r12 root=/dev/ram0 init=/linuxrc ramdisk=8192 real_root=/dev/hda9 udev
initrd /boot/initramfs-genkernel-x86-2.6.16-gentoo-r12
title=Windows XP
rootnoverify (hd0,0)
chainloader +1
makeactive
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/etc/fstab
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# /etc/fstab: static file system information.
#
# noatime turns off atimes for increased performance (atimes normally aren't
# needed; notail increases performance of ReiserFS (at the expense of storage
# efficiency). It's safe to drop the noatime options if you want and to
# switch between notail / tail freely.
#
# The root filesystem should have a pass number of either 0 or 1.
# All other filesystems should have a pass number of 0 or greater than 1.
#
# See the manpage fstab(5) for more information.
#
# <fs> <mountpoint> <type> <opts> <dump/pass>
# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/hda7 /boot ext2 defaults,noatime 1 2
/dev/hda9 / ext3 noatime 0 1
/dev/hda8 none swap sw 0 0
/dev/cdroms/cdrom0 /mnt/cdrom iso9660 noauto,user 0 0
#/dev/fd0 /mnt/floppy auto noauto 0 0
# NOTE: The next line is critical for boot!
proc /proc proc defaults 0 0
# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
# use almost no memory if not populated with files)
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
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and BTW I use this to mount to Gentoo within Knoppix:
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mkdir /mnt/gentoo
mkdir /mnt/gentoo/boot
mkdir /mnt/gentoo/proc
mount /dev/hda9 /mnt/gentoo
mount /dev/hda7 /mnt/gentoo/boot
mount -o bind /proc /mnt/gentoo/proc
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I have messed with the grub.conf and no luck getting past this kernel panic error...I did however, have to learn the hard way that Grub sees hda1 as (hd0,0) 
Further, I looked at this thread
And followed all the menuconfig directions, except for | Code: | File systems
-> Pseudo file systems
-> /dev file system support (OBSOLETE) DEVFS_FS
-> Automatically mount at boot DEVFS_MOUNT |
because those options aren't in my menu... I think they were removed sometime between when that thread was written and the latest kernel (2.6.16-r12)
I began this July 11th, and the first 4-5 hours went smoothly. July 12th was spent figuring out why the splash image wasn't displaying correctly (subtract one from each hda#). And yesterday and today (July 13th) I've been trying to get rid of this kernel panic. There is not a huge rush, because XP boots fine and Knoppix boots fine, but I have been banging my head because I can't figure out what the problem is.
Any help or pointers in the right direction would be greatly appreciated 
P.S. It is a IDE/Ultra ATA hard drive; not SATA.
_________________
kernel-genkernel-x86-2.6.16-gentoo-r12
Last edited by stupefiedgenius on Fri Jul 14, 2006 7:17 am; edited 1 time in total |
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davascript
l33t
Joined: 07 Apr 2004
Posts: 618
Location: Pennsylvania
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| Posted: Fri Jul 14, 2006 2:35 am Post subject: |
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if you have comile your own kernel using make menuconfig then your kernel lines in grub.conf shoudlnt be genkernel syntax.
kernel /boot/kernel-genkernel-x86-2.6.16-gentoo-r12 root=/dev/hda9
initrd /boot/initramfs-genkernel-x86-2.6-genkernel-r12
should be:
kernel /boot/kernel-2.6.16-gentoo-r12 root=/dev/hda9
and this:
Kernel panic - not syncing: VFS: Unable to mount fs on unknown-block(0,0)
means your the storage controller isnt compiled in the kernel. |
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stupefiedgenius
n00b
Joined: 13 Jul 2006
Posts: 5
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| Posted: Fri Jul 14, 2006 2:53 am Post subject: |
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Davascript, thank you for replying.
I have seen many varations of the grub.conf on the internet, so I have been experimenting with different coding. The manual compilation of the kernel is in a seperate file from the original genkernel kernel; the reason for this was a quick minimal test, to see if genkernel was the source of the error.
I will look into the storage controller module, as that may very well be the issue.
Thank you once again and I hope that gets me through this issue (though I'll likely have more issues later on especially with getting wifi working  )
EDIT: (so as to not double post)
Ok I solved the kernel panic issue and can login (I have some additional unrelated issues to work out tomorrow)
Some non-default things to select in genkernel:
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#cd /usr/src/linux
#genkernel all --menuconfig
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Loadable Module Support> select all 5 options in here
Block layer>select support for large block devices
Processor Type and features>select your CPU/processor (it was set to Pentium Pro for some reason and I have a Pentium III (coppermine)
Networking support>Enable full debugging output, IEEE 802.11 CCMP support
Device Drivers>Block devices>RAM disk support, Initial RAM disk (initrd) support
Device Drivers>ATA/ATAPI/MFM/RLL support>Enhanced IDE disk, Include IDE/ATA-2 DISK, generic/default IDE chipset support, PCI IDE chipset
Device Drivers>USB Support>Support for Host-side USB, EHCI HCD, OHCI, UHCI, USB Mass Storage support, USB Human Interface Device (full HID), HID input layer, USB Monitor
File Systems>Second extended fs support, Ext2 extended attributes, Ext2 POSIX, Ext2 Security, Ext2 execute, Ext3 journalling, Ext3 extended, Ext3 POSIX, Ext3 Security, JBD (ext3) debugging
File Systems>Pseudo filesystems>/proc file system, /proc/kcore, virtual memory
File Systems>Partition Types>Advanced partition, PC BIOS
Save Configuration to an Alternate File>/config (NOT .config or else you will lose your options the next time you open menuconfig!)
Exit and say yes
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Now
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# make && make modules_install
# mount /boot
# cp arch/i386/boot/bzImage /boot/kernel-genkernel-x86-2.6.16-gentoo-r12
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If your kernel is different and you have issues use "cd" to look into the folder above (say cd /boot) and then type ls to list what is in that folder (and the exact filename because linux is nit-picky )
NOTE: The menuconfig options listed above are only the options I had to select that weren't default...there are some default ones already selected, don't uncheck those. Obviously modify it to the needs of your hardware and partition scheme. I recommend the GParted Live-CD 2.4 for all your partitioning needs (I had a bad experience with Partition Magic)
I hope this thread helps linux n00bs like me
_________________
kernel-genkernel-x86-2.6.16-gentoo-r12 |
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Installing Gentoo
