I just installed Fedora 15 x86-64 gold today so I could try out the Xen hypervisor. I installed xen by typing in xen command line and following the installation prompts. Everything seemed to go fine on the install. The following appeared in /boot:
[root@fedora-15-64gb boot]# ls -ltr
total 53852
-rwxr-xr-x. 1 root root 3867920 May 9 23:00 vmlinuz-2.6.38.6-26.rc1.fc15.x86_64
-rw-------. 1 root root 2371473 May 9 23:00 System.map-2.6.38.6-26.rc1.fc15.x86_64
-rw-r--r--. 1 root root 114122 May 9 23:00 config-2.6.38.6-26.rc1.fc15.x86_64
-rw-r--r--. 1 root root 12128990 May 10 00:50 xen-syms-4.1.0
-rwxr-xr-x. 1 root root 730168 May 10 00:50 xen-4.1.0.gz
-rwxr-xr-x. 1 root root 3867984 May 15 19:38 vmlinuz-2.6.38.6-27.fc15.x86_64
-rw-------. 1 root root 2371473 May 15 19:38 System.map-2.6.38.6-27.fc15.x86_64
-rw-r--r--. 1 root root 114118 May 15 19:38 config-2.6.38.6-27.fc15.x86_64
-rw-r--r--. 1 root root 14651937 May 24 15:45 initramfs-2.6.38.6-27.fc15.x86_64.img
lrwxrwxrwx. 1 root root 12 May 24 15:53 xen-4.1.gz -> xen-4.1.0.gz
lrwxrwxrwx. 1 root root 12 May 24 15:53 xen.gz -> xen-4.1.0.gz
drwx------. 2 root root 12288 May 24 15:57 lost+found
-rw-r--r--. 1 root root 239077 May 24 16:13 initrd-plymouth.img
drwxr-xr-x. 3 root root 1024 May 24 16:20 efi
-rw-r--r--. 1 root root 14651155 May 24 16:23 initramfs-2.6.38.6-26.rc1.fc15.x86_64.img
drwxr-xr-x. 2 root root 1024 May 24 17:26 grub
[root@fedora-15-64gb boot]#
However, when I rebooted there were no boot options. I saw than /boot/grub/grub.conf had no entries for a xen kernel so I modified grub.conf to show a boot menu and added a thrid kernel boot option (xen 4.1.0). I'm unsure if the lines I added are proper. Now when I reboot choosing third option (xen 4.1.0) I get a boot error message that "Error 19: Linux kernel must be loaded before initrd". I'm guessing that the issue is that xen-4.1.0.gz isn't becoming the kernel. At this point I'm stuck. I'm not sure if this is a xen on 15 issue or I'm just making some newbie mistake in grub.conf. Anyone see an issue or can confirm/not -confirm that xen works on 15 x86-64 gold?
[root@fedora-15-64gb grub]# cat grub.conf
# 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/mapper/vg_fedora1564gb-lv_root
# initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=1
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.38.6-27.fc15.x86_64)
root (hd0,0)
kernel /vmlinuz-2.6.38.6-27.fc15.x86_64 ro root=/dev/mapper/vg_fedora1564gb-lv_root rd_LVM_LV=vg_fedora1564gb/lv_root rd_LVM_LV=vg_fedora1564gb/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
initrd /initramfs-2.6.38.6-27.fc15.x86_64.img
title Fedora (2.6.38.6-26.rc1.fc15.x86_64)
root (hd0,0)
kernel /vmlinuz-2.6.38.6-26.rc1.fc15.x86_64 ro root=/dev/mapper/vg_fedora1564gb-lv_root rd_LVM_LV=vg_fedora1564gb/lv_root rd_LVM_LV=vg_fedora1564gb/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
initrd /initramfs-2.6.38.6-26.rc1.fc15.x86_64.img
title xen 4.1.0
root (hd0,0)
kernel /xen-4.1.0.gz dom0_mem=1024M loglvl=all guest_loglvl=all
module /vmlinuz-2.6.38.6-27.fc15.x86_64 ro root=/dev/mapper/vg_fedora1564gb-lv_root rd_LVM_LV=vg_fedora1564gb/lv_root rd_LVM_LV=vg_fedora1564gb/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
initrd /initramfs-2.6.38.6-27.fc15.x86_64.img
[root@fedora-15-64gb grub]#
Linear Mode
