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Re: [Xen-users] Unable to reboot after install of Xen on fresh ubuntu running off recycled macbook hardware

Hmm…. Here is the menu entry for Ubuntu GNU/Linux, with Xen hypervisor for /boot/grub/grub.cfg (not /boot/grub2… that directory does not exist on my Unbuntu distro)

menuentry 'Ubuntu GNU/Linux, with Xen hypervisor' --class ubuntu --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-simple-858436db-0198-4d51-9d7f-8a0a4603eb7a' {
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  8a1f5b8a-1c17-434e-930e-d1687be8b6f4
          search --no-floppy --fs-uuid --set=root 8a1f5b8a-1c17-434e-930e-d1687be8b6f4
        echo    'Loading Xen 4.4-amd64 ...'
        if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
            xen_rm_opts="no-real-mode edd=off"
        multiboot       /xen-4.4-amd64.gz placeholder   ${xen_rm_opts}
        echo    'Loading Linux 3.16.0-25-generic ...'
        module  /vmlinuz-3.16.0-25-generic placeholder root=/dev/mapper/ubuntu--vg-root ro
        echo    'Loading initial ramdisk God damn it!!!!...'
        module  --nounzip   /initrd.img-3.16.0-25-generic
        echo    'I'\''m passed loading the RAM disk'


Thanks for looking into this (I added the extra echo lines in my effort to figure out what was going on here…)

On Nov 25, 2014, at 6:47 PM, Manoj Subramaniam <Manoj.Subramaniam@xxxxxxxxxx> wrote:

 I suspect your menu entry for "Ubuntu GNU/Linux (kernel 3.16.0-25-generic [or -0-23-]) , with Xen hypervisor” is incorrect. Did you run grub2-mkconfig? Verify the menu entry in /boot/grub2/grub.cfg .

From: Marco Blanchette <marcoblanchette@xxxxxx>
Date: Tuesday, November 25, 2014 at 7:15 AM
To: "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>
Subject: [Xen-users] Unable to reboot after install of Xen on fresh ubuntu running off recycled macbook hardware

I'm pretty newbie with Xen and I appologize if this is something that is easy and dumb... 

I just install a fresh vanilla ubuntu 14.10 server, followed by a distribution upgrade. Ubuntu is installed on a recycled macbook air late 2010 [MacBook Air "Core 2 Duo" 2.13 13" (Late ’10) 2.13 GHz Core 2 Duo (SL9600) to be precise] on a 25 Gb root partition with the remaining of the 250Gb SSD hard drive for LVM. Grub2 is the boot loader. 

I then installed Xen 4.4 from the distro with sudo apt-get install xex-hypervisor-4.4-amd64

Upon reboot of the Ubuntu GNU/Linux (kernel 3.16.0-25-generic [or -0-23-]) , with Xen hypervisor in Grub (v 2.02 ~ beta2-15), the boot process get stuck after echoing "Loading initial ramdisk”. I also tried Ubuntu 14.04.01 LTS server with the two different kernels with no avail.

I suspect the problem is with the Grub configs but I’m not sure where to go from there to start figuring out what the problem is.

Any help would be really appreciate.

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