[linux-lvm] Can not boot: unable to mount root fs:

[Herbert Poetzl]

On Wed, Sep 03, 2003 at 10:37:27AM -0700, Samuel A. Rogers wrote:
> Herbert,
> 
> I could send you a boot log but there is no information in it (to this 
> problem) because the system locks up before it mounts the root (or other) 
> partitions. Sorry your right that I should have included the boot loader, 
> as it is grub. I am not sure what your wanting here, if it is a file or for 
> me to discribe what I selected in the configuration. If it is a file please 
> let me know what directory it is in and I will be happy to include it. I 
> did select LVM and ext3 in the configuration.

maybe you could put the following files/logs somewhere on the web

.config file from the kernel sources /usr/src/linux-<whatever>/.config
the complete boot log (with all unrelated info ;)
the grub config file

best,
Herbert

> Thank you for your help,
> 
> 	Sam.
> 
> Herbert Poetzl wrote:
> >On Tue, Sep 02, 2003 at 10:10:22AM -0700, Samuel A. Rogers wrote:
> >
> >>So far I can not compile and boot any kernel from 2.4.19 - 2.4.21. I get 
> >>the below error message:
> >>
> >>VFS: cannot open device 3a:00
> >>kernel panic: VFS: unable to mount root fs 3a:00
> >
> >
> >send some more information, like a complete
> >bootup log, your boot loader and your kernel
> >configuration ...
> >
> >best,
> >Herbert
> >
> >
> >>I took this from an archive message and it should be very close to the 
> >>message I get except for the device number. I think mine says 1a:00 as I 
> >>am only using ide and not scsi. The system locks up and I have to 
> >>manually press the reset button to reboot.
> >>
> >>I have checked the archives but could not find a solution.
> >>
> >>Also the kernels I get from Redhat can boot just fine, but they have 
> >>turned off my sound card so I need to regen the kernel. I have tried to 
> >>get ahold of Redhat by phone, e-mail and newsgroup but no reply.
> >>
> >>Regards,
> >>
> >>	Sam Rogers.
> >>
> >>
> >>_______________________________________________
> >>linux-lvm mailing list
> >>linux-lvm at sistina.com
> >>http://lists.sistina.com/mailman/listinfo/linux-lvm
> >>read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> >
> >
> >.
> >
> 

> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this file
> # NOTICE:  You have a /boot partition.  This means that
> #          all kernel and initrd paths are relative to /boot/, eg.
> #          root (hd0,0)
> #          kernel /vmlinuz-version ro root=/dev/Volume00/LogVol00
> #          initrd /initrd-version.img
> #boot=/dev/hda
> default=1
> timeout=10
> splashimage=(hd0,0)/grub/splash.xpm.gz
> password --md5 $1$fJRwapbJ$jxsALxSgdFjk02dHBhHmL0
> title Red Hat Linux (2.4.21)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.21 ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.21.img
> title Red Hat Linux (2.4.20-20.9)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.20-20.9 ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.20-20.9.img
> title Red Hat Linux (2.4.20-19.9)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.20-19.9 ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.20-19.9.img
> title Red Hat Linux (2.4.20-18.9)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.20-18.9 ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.20-18.9.img
> title Red Hat Linux (2.4.20-13.9)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.20-13.9 ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.20-13.9.img
> title Red Hat Linux (2.4.20-9custom)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.20-9custom ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.20-9custom.img
> title Red Hat Linux (2.4.20-9)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.20-9 ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.20-9.img
> title Red Hat Linux (2.4.20-6)
> 	root (hd0,0)
> 	kernel /vmlinuz-2.4.20-6 ro root=/dev/Volume00/LogVol00
> 	initrd /initrd-2.4.20-6.img