Hi,

One of my servers in a IDC in another country mysteriously went down this morning, and when I contacted the IDC, I was told that XEN doesn't boot up, as follows:

[QUOTE] This is error message on the screen " Error 19: Linux Kernel must be loaded before initrd"

Server is currently up with 2nd kernel.

Please check the grub.conf. [/QUOTE]

Looking at grub.conf, I see the following:

#boot=/dev/hda default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-128.1.10.el5xen) root (hd0,0) kernel /xen.gz-2.6.18-128.1.10.el5 ro root=/dev/VolGroup00/LogVol01 ide0=noprobe ide1=noprobe initrd /initrd-2.6.18-128.1.10.el5.img title CentOS (2.6.18-128.1.10.el5) root (hd0,0) kernel /vmlinuz-2.6.18-128.1.10.el5 ro root=/dev/VolGroup00/LogVol01 ide0=noprobe ide1=noprobe initrd /initrd-2.6.18-128.1.10.el5.img title CentOS (2.6.18-128.el5) root (hd0,0) kernel /vmlinuz-2.6.18-128.el5 ro root=/dev/VolGroup00/LogVol01 ide0=noprobe ide1=noprobe initrd /initrd-2.6.18-128.el5.img

Then on another server, I see the following in grub.conf: #boot=/dev/sda default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu

title CentOS (2.6.18-8.1.15.el5xen) root (hd0,0) kernel /xen.gz-2.6.18-8.1.15.el5 module /vmlinuz-2.6.18-8.1.15.el5xen ro root=/dev/VolGroup00/root module /initrd-2.6.18-8.1.15.el5xen.img

title CentOS (2.6.18-8.1.15.el5) root (hd0,0) kernel /vmlinuz-2.6.18-8.1.15.el5 ro root=/dev/VolGroup00/root initrd /initrd-2.6.18-8.1.15.el5.img

title CentOS (2.6.18-8.el5) root (hd0,0) kernel /vmlinuz-2.6.18-8.el5 ro root=/dev/VolGroup00/root initrd /initrd-2.6.18-8.el5.img

On both kernels, I can see that initrd is loaded 2nd, as it should. So the error doesn't make sense. The BIG problem is that the server is on another continent, and their support is totally useless. I have actiall ordered a new server, from another IDC and got it last night, but need XEN to work on this server in order to move the domU's across.

Can anyone see anyting wrong with this? Google has revelaed the obvious, that the initrd is incorrectly loaded, but according to the grub.conf that I have, it should be loading properly.