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Re: [Xen-devel] Arndale: domU not booting

Dear Mr. Campbell,

Many thanks for your answer. I recompiled the dom0 kernel with GNTDEV (couldn't find gnttab, were you referring to gntdev?) built into the kernel, and any other XEN driver. Should I also recompile the domU kernel with this option? I also gave execution rights to the "image" (kernel+xendtb) file, just in case. I installed qemu-system and qemu-utils and linked /usr/local/lib/xen/bin/qemu-system-i386 to the path where qemu-system-i386 was actually located. When I boot, I execute:

root@arndale:~/vmTest# /etc/init.d/xencommons start
Starting C xenstored...
Setting domain 0 name...
Starting xenconsoled...
Starting QEMU as disk backend for dom0
Option xen-domid not supported for this target

root@arndale:~/vmTest# /etc/init.d/xendomains start

What I now get when I try to create the VM is:

root@arndale:~/vmTest# xl create -c vmTest.cfg
Parsing config from vmTest.cfg
/etc/xen/scripts/block-common.sh: line 1: JÕï:ïïïÊ/_yï^ïïïïïAï: No such file or directory
/etc/xen/scripts/block-common.sh: line 2: $'\247\206\261p\252\036#t\207\216#\301T\317': command not found
/etc/xen/scripts/block-common.sh: line 3: ïï0ïï: Input/output error
/etc/xen/scripts/block-common.sh: line 4: $'\313\361+K\364\260Z\375\271\314\005\275\366v\276\035\2776\032j\324KsoW\276OJ:': command not found

malloc: ../bash/subst.c:8485: assertion botched
Aborting...libxl: error: libxl_exec.c:129:libxl_report_child_exitstatus: /etc/xen/scripts/block add [3155] died due to fatal signal AbortedÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ
libxl: error: libxl_xshelp.c:212:libxl__xs_transaction_start: could not create xenstore transaction: Read-only file systemÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ
libxl: error: libxl_device.c:798:libxl__initiate_device_remove: unable to start transactionÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ
libxl: error: libxl_xshelp.c:212:libxl__xs_transaction_start: could not create xenstore transaction: Read-only file system
libxl: error: libxl.c:1456:devices_destroy_cb: libxl__devices_destroy failed for 1

After this, the filesystem becomes read-only and I have to reboot the whole board. What can be happening?

Many thanks for your help.

Kind regards,


On 10/22/2013 06:58 PM, Ian Campbell wrote:
On Tue, 2013-10-22 at 18:07 +0200, Josep Subirats wrote:

root@arndale:/# /etc/init.d/xencommons start
Starting C xenstored...WARNING: Failed to open connection to gnttab
Make sure you have all the Xen drivers enabled in your kernel, including
the gnttab one. Also make sure the modules are loaded, or better build
them into the kernel statically.
Then I tried to create the VM described in the wiki, but to no avail.
I copied all the necessary files, concatenated the domU kernel with
the xenvm dtb, but in the end I get the following output:

root@arndale:~# xl create -c vmDescriptor.cfg 
Parsing config from vmDescriptor.cfg
/etc/xen/scripts/block: line 3: dirname: command not found
Your root filesystem seems to be missing the coreutils package (or
something else which provides dirname). The following errors all look
like fallout from this.


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