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Zarhan
Veteran
Joined: 27 Feb 2004
Posts: 1016
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 Posted: Mon Oct 06, 2008 2:08 pm Post subject: Xen domU not starting INIT |
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Hi,
I'm testing around Xen, and grabbed the gentoo and fedora images from jailtime.org. Anyway, I can't get them to work properly - they never get past the kernel. In fact, after boot, they end up at blocked state. How do I determine what's causing the block?
The domain configuration is as
| Code: | kernel = "/mnt/data/xen/kernels/vmlinuz-domU"
memory = 384
name = "gentootest"
#vif = [ "" ]
#dhcp = "dhcp"
disk = ['file:/mnt/data/xen/disks/gentoo.2008-0.64.img,sda1,w']
root = "/dev/sda1 ro"
extra = "gentoo=nodevfs"
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(I've commented out the network stuff just to make sure this isn't about networking...)
| Code: | configs # xm create gentoo-test
Using config file "./gentoo-test".
Started domain gentootest
configs # xm console gentootest
floppy0: no floppy controllers found
loop: loaded (max 8 devices)
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
netconsole: not configured, aborting
Xen virtual console successfully installed as xvc0
Event-channel device installed.
netfront: Initialising virtual ethernet driver.
i8042.c: No controller found.
mice: PS/2 mouse device common for all mice
device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised: dm-devel@redhat.com
IPv4 over IPv4 tunneling driver
GRE over IPv4 tunneling driver
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
xen-vbd: registered block device major 8
blkfront: sda1: barriers enabled
XENBUS: Device with no driver: device/console/0
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting. Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 128k freed
configs # xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 7667 4 r----- 128.0
gentootest 17 384 1 -b---- 2.8
configs #
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Xend.log gives me
| Code: | [2008-10-06 17:06:35 6234] DEBUG (XendDomainInfo:89) XendDomainInfo.create(['vm', ['name', 'gentootest'], ['memory', 384], ['vcpus', 1], ['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], ['image', ['linux', ['kernel', '/mnt/data/xen/kernels/vmlinuz-domU'], ['root', '/dev/sda1 ro'], ['args', 'gentoo=nodevfs']]], ['device', ['vbd', ['uname', 'file:/mnt/data/xen/disks/gentoo.2008-0.64.img'], ['dev', 'sda1'], ['mode', 'w']]]])
[2008-10-06 17:06:35 6234] DEBUG (XendDomainInfo:2028) XendDomainInfo.constructDomain
[2008-10-06 17:06:35 6234] DEBUG (balloon:132) Balloon: 396332 KiB free; need 2048; done.
[2008-10-06 17:06:35 6234] DEBUG (XendDomain:447) Adding Domain: 19
[2008-10-06 17:06:35 6234] DEBUG (XendDomainInfo:2134) XendDomainInfo.initDomain: 19 256
[2008-10-06 17:06:35 6234] DEBUG (XendDomainInfo:2215) _initDomain:shadow_memory=0x0, memory_static_max=0x18000000, memory_static_min=0x0.
[2008-10-06 17:06:35 6234] DEBUG (balloon:132) Balloon: 396324 KiB free; need 395264; done.
[2008-10-06 17:06:35 6234] INFO (image:166) buildDomain os=linux dom=19 vcpus=1
[2008-10-06 17:06:35 6234] DEBUG (image:631) domid = 19
[2008-10-06 17:06:35 6234] DEBUG (image:632) memsize = 384
[2008-10-06 17:06:35 6234] DEBUG (image:633) image = /mnt/data/xen/kernels/vmlinuz-domU
[2008-10-06 17:06:35 6234] DEBUG (image:634) store_evtchn = 1
[2008-10-06 17:06:35 6234] DEBUG (image:635) console_evtchn = 2
[2008-10-06 17:06:35 6234] DEBUG (image:636) cmdline = root=/dev/sda1 ro gentoo=nodevfs
[2008-10-06 17:06:35 6234] DEBUG (image:637) ramdisk =
[2008-10-06 17:06:35 6234] DEBUG (image:638) vcpus = 1
[2008-10-06 17:06:35 6234] DEBUG (image:639) features =
[2008-10-06 17:06:35 6234] INFO (XendDomainInfo:1900) createDevice: vbd : {'uuid': '9d488442-4865-5f3f-4fc2-dfc2cd995007', 'bootable': 1, 'driver': 'paravirtualised', 'dev': 'sda1', 'uname': 'file:/mnt/data/xen/disks/gentoo.2008-0.64.img', 'mode': 'w'}
[2008-10-06 17:06:35 6234] DEBUG (DevController:122) DevController: writing {'virtual-device': '2049', 'device-type': 'disk', 'protocol': 'x86_64-abi', 'backend-id': '0', 'state': '1', 'backend': '/local/domain/0/backend/vbd/19/2049'} to /local/domain/19/device/vbd/2049.
[2008-10-06 17:06:35 6234] DEBUG (DevController:124) DevController: writing {'domain': 'gentootest', 'frontend': '/local/domain/19/device/vbd/2049', 'uuid': '9d488442-4865-5f3f-4fc2-dfc2cd995007', 'dev': 'sda1', 'state': '1', 'params': '/mnt/data/xen/disks/gentoo.2008-0.64.img', 'mode': 'w', 'online': '1', 'frontend-id': '19', 'type': 'file'} to /local/domain/0/backend/vbd/19/2049.
[2008-10-06 17:06:35 6234] DEBUG (XendDomainInfo:2729) Storing VM details: {'on_xend_stop': 'ignore', 'shadow_memory': '0', 'uuid': 'c4f83291-a18d-2046-3f27-5728c17614a3', 'on_reboot': 'restart', 'start_time': '1223301995.57', 'on_poweroff': 'destroy', 'on_xend_start': 'ignore', 'on_crash': 'restart', 'xend/restart_count': '0', 'vcpus': '1', 'vcpu_avail': '1', 'image': "(linux (kernel /mnt/data/xen/kernels/vmlinuz-domU) (args 'root=/dev/sda1 ro gentoo=nodevfs') (notes (FEATURES 'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel') (VIRT_BASE 18446744071562067968) (GUEST_VERSION 2.6) (PADDR_OFFSET 18446744071562067968) (GUEST_OS linux) (HYPERCALL_PAGE 18446744071564189696) (LOADER generic) (SUSPEND_CANCEL 1) (ENTRY 18446744071564165120) (XEN_VERSION xen-3.0)))", 'name': 'gentootest'}
[2008-10-06 17:06:35 6234] DEBUG (XendDomainInfo:1359) Storing domain details: {'console/ring-ref': '2217904', 'image/entry': '18446744071564165120', 'console/port': '2', 'store/ring-ref': '2217905', 'image/loader': 'generic', 'vm': '/vm/c4f83291-a18d-2046-3f27-5728c17614a3', 'control/platform-feature-multiprocessor-suspend': '1', 'image/guest-os': 'linux', 'image/features/writable-descriptor-tables': '1', 'image/virt-base': '18446744071562067968', 'memory/target': '393216', 'image/guest-version': '2.6', 'image/features/supervisor-mode-kernel': '1', 'console/limit': '1048576', 'image/paddr-offset': '18446744071562067968', 'image/hypercall-page': '18446744071564189696', 'image/suspend-cancel': '1', 'cpu/0/availability': 'online', 'image/features/pae-pgdir-above-4gb': '1', 'image/features/writable-page-tables': '1', 'console/type': 'xenconsoled', 'image/features/auto-translated-physmap': '1', 'name': 'gentootest', 'domid': '19', 'image/xen-version': 'xen-3.0', 'store/port': '1'}
[2008-10-06 17:06:35 6234] DEBUG (DevController:122) DevController: writing {'protocol': 'x86_64-abi', 'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/console/19/0'} to /local/domain/19/device/console/0.
[2008-10-06 17:06:35 6234] DEBUG (DevController:124) DevController: writing {'domain': 'gentootest', 'frontend': '/local/domain/19/device/console/0', 'uuid': 'e6904810-41a4-769c-649f-0c42f6694a2a', 'frontend-id': '19', 'state': '1', 'location': '2', 'online': '1', 'protocol': 'vt100'} to /local/domain/0/backend/console/19/0.
[2008-10-06 17:06:35 6234] DEBUG (XendDomainInfo:1443) XendDomainInfo.handleShutdownWatch
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices vif.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices vscsi.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices vbd.
[2008-10-06 17:06:35 6234] DEBUG (DevController:160) Waiting for 2049.
[2008-10-06 17:06:35 6234] DEBUG (DevController:645) hotplugStatusCallback /local/domain/0/backend/vbd/19/2049/hotplug-status.
[2008-10-06 17:06:35 6234] DEBUG (DevController:645) hotplugStatusCallback /local/domain/0/backend/vbd/19/2049/hotplug-status.
[2008-10-06 17:06:35 6234] DEBUG (DevController:659) hotplugStatusCallback 1.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices irq.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices vkbd.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices vfb.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices console.
[2008-10-06 17:06:35 6234] DEBUG (DevController:160) Waiting for 0.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices pci.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices ioports.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices tap.
[2008-10-06 17:06:35 6234] DEBUG (DevController:155) Waiting for devices vtpm.
[2008-10-06 17:06:35 6234] INFO (XendDomain:1172) Domain gentootest (19) unpaused.
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Anyway, the kernel seems to boot just fine, it just never executes INIT. What's the problem here? |
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dakaz
n00b
Joined: 16 Jun 2005
Posts: 17
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| Posted: Mon Oct 06, 2008 3:33 pm Post subject: |
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Its possible your problem isn't with the xen domU's booting, its that your console isn't attaching. I had a bugger of a time with this myself before I got it to work. I haven't used the pre-built images you are referring to, but I can tell you what I had to do.
In my domU xen config file, I added
| Code: | extra = " console=xvc0 xencons=xvc0";
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And in my domU's inittab I had to add:
| Code: | co:12345:respawn:/sbin/agetty 38400 xvc0 vt100-nav
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Note: my domU is a gentoo domU, for fedora the inittab entry may differ.
--Kaz |
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Zarhan
Veteran
Joined: 27 Feb 2004
Posts: 1016
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| Posted: Mon Oct 06, 2008 4:13 pm Post subject: |
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That did the trick - thanks!
I wonder why the prebuilt ones are assumed to work... is there some way to capture the standard console to Xen's version?
Hmm. I also cannot do root logins from this console.. |
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dakaz
n00b
Joined: 16 Jun 2005
Posts: 17
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| Posted: Mon Oct 06, 2008 7:37 pm Post subject: |
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To root login from the xm console:
| Code: | | echo "xvc0" >> /etc/securetty |
In your domU. Glad it helped |
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