Dual boot with CentOS

[Nolan Cooper]

  Nolan flopped in chair, hunched shoulders, and pecked out:
> I have installed CentOS 5.2 on a second hard drive and choosing no when
> asking to setup grub on my /dev/hda, leaving my Ubuntu grub intact, now
> how do I add CentOS to grub in Ubuntu? My existing grub menu.1st file
> looks like this...
> 
> title Ubuntu 8.10, kernel 2.6.27-13-generic
> root (hd0,3)
> kernel /boot/vmlinuz-2.6.27-13-generic root=/dev/sda4 ro quiet splash
> initrd /boot/initrd.img-2.6.27-13-generic
> 
> title Ubuntu 8.10, kernel 2.6.27-13-generic (recovery mode)
> root (hd0,3)
> kernel /boot/vmlinuz-2.6.27-13-generic root=/dev/sda4 ro  single
> initrd /boot/initrd.img-2.6.27-13-generic
> 
> Also, my system looks like this....
> 
> robert at columbus:~$ fdisk -l
> 
> Disk /dev/sda: 160.0 GB, 160041885696 bytes
> 255 heads, 63 sectors/track, 19457 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Disk identifier: 0x0000f444
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1         129     1036161   82  Linux swap / Solaris
> /dev/sda2             130        3316    25599577+   5  Extended
> /dev/sda3            6504       19457   104053005   83  Linux
> /dev/sda4            3317        6503    25599577+  83  Linux
> /dev/sda5             130        3316    25599546   83  Linux
> 
> Partition table entries are not in disk order
> 
> Disk /dev/sdb: 160.0 GB, 160041885696 bytes
> 255 heads, 63 sectors/track, 19457 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Disk identifier: 0x212d5ea7
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdb1   *           1        5099    40957686   83  Linux
> /dev/sdb2            5100       19457   115330635   83  Linux
> 
> I tried the following added to the end of menu.1st, but get an error -
> invalid or unsupported executable format...
> 
> title CentOS 5.2
> root (hd1,0)
> kernel /boot/vmlinuz-2.6.18-92.el5xen root=/dev/sdb1 ro quiet splash
> initrd /boot/initrd-2.6.18-92.el5xen.img
> 
> I've tried several googled variations using 'makeactive' and
> 'chainloader +1', but nothing works yet.
> 
Hi Robert-
I have been told not to post more than once, but "What The Hey"
I might be wrong, I believe the title line for CentOS needs a kernel 
specified.

later
nolan