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Re: [Xen-devel] ARM64: XEN Domu not booting with the qemu qcow AARCH64 Ubuntu 15.04 disk



Hi,

-----Original Message-----
From: Stefan Bader [mailto:stefan.bader@xxxxxxxxxxxxx]
Sent: Tuesday, June 02, 2015 1:52 PM
To: Sanjeev Pandita; xen-devel@xxxxxxxxxxxxx
Cc: Ian.Campbell@xxxxxxxxxx; Pranavkumar Sawargaonkar;
stefano.stabellini@xxxxxxxxxxxxx
Subject: Re: [Xen-devel] ARM64: XEN Domu not booting with the qemu qcow
AARCH64 Ubuntu 15.04 disk

On 02.06.2015 09:40, Sanjeev Pandita wrote:
> All,
>
> I am pretty new to xen . I am trying to boot DOMU with qemu qcow
> AARCH64 Ubuntu 15.04 disk on Xen but I am getting the errors which
> link to "/usr/local/lib/xen/bin/qemu-system-i386".
> Since I am working on aarch64 system the
> /usr/local/lib/xen/bin/qemu-system-i386 bin might not be present or
> might not work as expected.

Because I am lacking hardware and feedback, the arm64 packaging is a
rather theoretical exercise. At least for armhf I thought qemu-system-x86
was a dependency. That binary should provide x86 emulation on arm64, the
same as one could install qemu for other arches on x86.
Have you tried to install qemu-system-x86 manually?

-Stefan

>
> Please let me know how to make the Qemu qcow image work on Xen.
> Attached are the DomU boot log and config file.
>
> Thanks,
> San

Thanks for your inputs, I have installed the qemu-system-i386 but my DomU
booting is still crashing with following short logs. Am I missing anything
?

Kernel Crash logs:

xenbus_probe_frontend: Waiting for devices to initialise:
25s...20s...15s...10s...5s...0s...
235s...230s...225s...220s...215s...210s...205s...200s...195s...190s...185s
...180s...175s...170s...165s...160s...155s...150s...145s...140s...135s...1
30s...125s...120s...115s...110s...105s...100s...95s...90s...85s...80s...75
s...70s...65s...60s...55s...50s...45s...40s...35s...30s...25s...20s...15s.
..10s...5s...0s...

xenbus_probe_frontend: Timeout connecting to device: device/vbd/51712
(local state 3, remote state 2)
console [netcon0] enabled
netconsole: network logging started
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
VFS: Cannot open root device "xvda" or unknown-block(0,0): error -6
Please append a correct "root=" boot option; here are the available
partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.8 #5
Hardware name: XENVM-4.6 (DT)
Call trace:
[<ffffffc00008a0dc>] dump_backtrace+0x0/0x124
[<ffffffc00008a210>] show_stack+0x10/0x1c
[<ffffffc000657d88>] dump_stack+0x80/0xc4
[<ffffffc000656f04>] panic+0xe0/0x220
[<ffffffc00087eea8>] mount_block_root+0x1a4/0x24c
[<ffffffc00087f19c>] mount_root+0x110/0x130
[<ffffffc00087f328>] prepare_namespace+0x16c/0x1b8
[<ffffffc00087eb44>] kernel_init_freeable+0x1c4/0x1ec
[<ffffffc00065481c>] kernel_init+0xc/0xd8
---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)


My config file  :

linux:/mnt/xen # cat vm1
name = "vm1"
uuid = "3fb78ba6-8182-484c-acf7-8faba9773f68"
disk = [ 'tap:qcow:/mnt/xen/vivid-server-cloudimg-arm64-disk1.img,xvda,w'
]
memory = 512
kernel = "./Image"
extra = "root=/dev/xvda rw console=hvc0 earlyprintk=xen"


Regards,
San


>
>
>
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> http://lists.xen.org/xen-devel
>

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