boot custom kernel and /etc/fstab

[Noah]

On Tue, 2 Nov 2004 13:42:05 -0600 (CST), Steve Phillips wrote
> On Tue, 2 Nov 2004, Noah wrote:
> 
> > using:  Redhat-enterprise WS version 3
> >
> >
> > I just built a custom kernel using the 2.4.21-20.EL source rpm.  it simply
> > does not boot and claims a VFS error and is unable to open root device
"LABEL=/"
> >
> > here is a screen picture of the error:
> > http://www.enabled.com/~noah/pictures/screen/IMG_0062.jpg
> >
> > I dont know what exactly I need to do here.  what is a safe, easy way to fix
> > this problem so I can boot my custom kernel.
> >
> >
> > --- cat /etc/fstab ---
> >
> > # cat /etc/fstab
> > LABEL=/                 /                       ext3    defaults        1 1
> > LABEL=/boot             /boot                   ext3    defaults        1 2
> > none                    /dev/pts                devpts  gid=5,mode=620  0 0
> > none                    /proc                   proc    defaults        0 0
> > none                    /dev/shm                tmpfs   defaults        0 0
> > /dev/sda3               swap                    swap    defaults        0 0
> > /dev/cdrom              /mnt/cdrom              udf,iso9660
> > noauto,owner,kudzu,ro 0 0
> 
> you need to either compile in support for disk labels (if you find 
> out how to do this please let us know) or change the system to 
> mount/boot based on raw devices.


Hi there,

can you please explain how I can compile in support for disk labels?  I dont
know how to do this?

cheers,

Noah



> 
> for raw devices change fstab
> > LABEL=/                 /                       ext3    defaults        1 1
> > LABEL=/boot             /boot                   ext3    defaults        1 2
> 
> to
> /dev/sda2                 /                       ext3    defaults   
>      1 1 /dev/sda1                 /boot                   ext3    
> defaults        1 2
> 
> You will also wish to change the corresponding lines in 
> /etc/grub.conf 
> (assuming you are using grub)
> 
> from
>          kernel /vmlinuz-2.4.21-20.ELsmp ro root=LABEL=/
> 
> to
>          kernel /vmlinuz-2.4.21-20.ELsmp ro root=/dev/sda2
> 
> where the "kernel" line points to the correct kernel image to boot
> 
> then reboot and all should be right
> 
> HTH,
> 
> -- 
> Steve.
> 
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