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Forums » Eucalyptus Support » Instance doesn't boot - cant mount root disk
8 replies [Last post]
Tue, 08/10/2010 - 01:13
shtainberg
Offline
Joined: 07/19/2010

Hi,

I'm using the centos image which was downladed from eucalyptus website and trying to create and run a new instance.

Looks like it has problems to boot, when i see the xen console output it says:
---------------
Begin: Waiting for root file system... ...
Done.
Gave up waiting for root device. Common problems:
---------------

I looked at XEN log file and found out that:
---------------------
[2010-08-09 04:57:50 xend.XendDomainInfo 3417] DEBUG (XendDomainInfo:993) Storing VM details: {'shadow_memory': '0', 'uuid': 'cc28ce26-fcb1-f6ad-d8d1-281248b310b9', 'on_reboot': 'restart', 'start_time': '1281355070.8', 'on_poweroff': 'destroy', 'name': 'i-3673062A', 'xend/restart_count': '0', 'vcpus': '1', 'vcpu_avail': '1', 'memory': '128', 'on_crash': 'destroy', 'image': "(linux (kernel /usr/local/eucalyptus//admin/i-3673062A/kernel) (ramdisk /usr/local/eucalyptus//admin/i-3673062A/ramdisk) (root /dev/sda1) (args ' ro'))", 'maxmem': '128'}
--------------

from this log, i can see that it attches /dev/sda1 as root ... but shouldn't it be: usr/local/eucalyptus//admin/i-3673062A/root ??

Thanks

Fri, 08/13/2010 - 17:33
#1
graziano
Offline
Joined: 01/14/2010
Hello, /dev/sda1 is what the

Hello,

/dev/sda1 is what the instance will see as root device. In your case it looks like the image is not finding the root file systems: a bit before that message, you should see some block device: you should check that indeed is sda and that there are at least 3 partitions.

cheers
graziano

Sun, 08/15/2010 - 03:48
#2
shtainberg
Offline
Joined: 07/19/2010
Thats what I have

The root disk is at:
/usr/local/eucalyptus/admin/i-3673062A/root
and i can mount it as a loop device.

That's the messages when the guest machine starts up:


[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.28-11-generic (buildd@crested) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009 (Ubuntu 2.6.28-11.42-generic)
[ 0.000000] Command line: root=/dev/sda1 ro
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] ACPI in unprivileged domain disabled
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable)
[ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved)
[ 0.000000] Xen: 0000000000100000 - 0000000002391000 (usable)
[ 0.000000] Xen: 0000000002391000 - 00000000023d4000 (reserved)
[ 0.000000] Xen: 00000000023d4000 - 0000000008000000 (usable)
[ 0.000000] DMI not present or invalid.
[ 0.000000] last_pfn = 0x8000 max_arch_pfn = 0x3ffffffff
[ 0.000000] Scanning 2 areas for low memory corruption
[ 0.000000] modified physical RAM map:
[ 0.000000] modified: 0000000000000000 - 0000000000001000 (usable)
[ 0.000000] modified: 0000000000001000 - 0000000000006000 (reserved)
[ 0.000000] modified: 0000000000006000 - 0000000000008000 (usable)
[ 0.000000] modified: 0000000000008000 - 0000000000010000 (reserved)
[ 0.000000] modified: 0000000000010000 - 0000000000093000 (usable)
[ 0.000000] modified: 00000000000a0000 - 0000000000100000 (reserved)
[ 0.000000] modified: 0000000000100000 - 0000000002391000 (usable)
[ 0.000000] modified: 0000000002391000 - 00000000023d4000 (reserved)
[ 0.000000] modified: 00000000023d4000 - 0000000008000000 (usable)
[ 0.000000] init_memory_mapping: 0000000000000000-0000000008000000
[ 0.000000] last_map_addr: 8000000 end: 8000000
[ 0.000000] RAMDISK: 00b86000 - 02391000
[ 0.000000] (6 early reservations) ==> bootmem [0000000000 - 0008000000]
[ 0.000000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
[ 0.000000] #1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000]
[ 0.000000] #2 [00023d4000 - 00023eb000] XEN PAGETABLES ==> [00023d4000 - 00023eb000]
[ 0.000000] #3 [0000200000 - 0000b854b0] TEXT DATA BSS ==> [0000200000 - 0000b854b0]
[ 0.000000[ 0.194968] brd: module loaded
[ 0.195253] loop: module loaded
[ 0.195352] Fixed MDIO Bus: probed
[ 0.195364] PPP generic driver version 2.4.2
[ 0.195424] input: Macintosh mouse button emulation as /devices/virtual/input/input0
[ 0.195467] Driver 'sd' needs updating - please use bus_type methods
[ 0.195484] Driver 'sr' needs updating - please use bus_type methods
[ 0.195908] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.195926] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.195939] uhci_hcd: USB Universal Host Controller Interface driver
[ 0.195989] usbcore: registered new interface driver libusual
[ 0.196075] usbcore: registered new interface driver usbserial
[ 0.196091] USB Serial support registered for generic
[ 0.196104] usbcore: registered new interface driver usbserial_generic
[ 0.196111] usbserial: USB Serial Driver core
[ 0.196143] PNP: No PS/2 controller found. Probing ports directly.
[ 0.196982] i8042.c: No controller found.
[ 0.204306] mice: PS/2 mouse device common for all mice
[ 0.216073] rtc_cmos: probe of rtc_cmos failed with error -16
[ 0.216139] device-mapper: uevent: version 1.0.3
[ 0.216260] device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised: dm-devel@redhat.com
[ 0.216327] device-mapper: multipath: version 1.0.5 loaded
[ 0.216336] device-mapper: multipath round-robin: version 1.0.0 loaded
[ 0.216414] cpuidle: using governor ladder
[ 0.216419] cpuidle: using governor menu
[ 0.216881] TCP cubic registered
[ 0.216961] NET: Registered protocol family 10
[ 0.217379] lo: Disabled Privacy Extensions
[ 0.217694] NET: Registered protocol family 17
[ 0.217717] Bluetooth: L2CAP ver 2.11
[ 0.217721] Bluetooth: L2CAP socket layer initialized
[ 0.217727] Bluetooth: SCO (Voice Link) ver 0.6
[ 0.217731] Bluetooth: SCO socket layer initialized
[ 0.217760] Bluetooth: RFCOMM socket layer initialized
[ 0.217769] Bluetooth: RFCOMM TTY layer initialized
[ 0.217773] Bluetooth: RFCOMM ver 1.10
[ 0.217797] powernow-k8: Found 1 Quad-Core AMD Opteron(tm) Processor 2352 processors (1 cpu cores) (version 2.20.00)
[ 0.218042] powernow-k8: BIOS error - no PSB or ACPI _PSS objects
[ 0.218054] IO APIC resources could be not be allocated.
[ 0.218129] registered taskstats version 1
[ 0.218143] XENBUS: Device with no driver: device/vif/0
[ 0.218148] XENBUS: Device with no driver: device/vbd/2049
[ 0.218152] XENBUS: Device with no driver: device/vbd/2050
[ 0.218157] XENBUS: Device with no driver: device/vbd/2051
[ 0.218177] Magic number: 1:252:3141
[ 0.218211] /build/buildd/linux-2.6.28/drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 0.218219] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 0.218224] EDD information not available.
[ 0.218254] Freeing unused kernel memory: 536k freed
[ 0.218535] Write protecting the kernel read-only data: 6708k
Loading, please wait...
Couldnt get a file descriptor referring to the console
Begin: Loading essential drivers... ...
[ 0.465094] md: linear personality registered for level -1
[ 0.470058] md: multipath personality registered for level -4
[ 0.474815] md: raid0 personality registered for level 0
[ 0.480589] md: raid1 personality registered for level 1
[ 0.485577] xor: automatically using best checksumming function: generic_sse
[ 0.504014] generic_sse: 3519.000 MB/sec
[ 0.504022] xor: using function: generic_sse (3519.000 MB/sec)
[ 0.505189] async_tx: api initialized (async)
[ 0.576051] raid6: int64x1 1799 MB/s
[ 0.644031] raid6: int64x2 2492 MB/s
[ 0.712022] raid6: int64x4 1960 MB/s
[ 0.780045] raid6: int64x8 1806 MB/s
[ 0.848015] raid6: sse2x1 2344 MB/s
[ 0.916039] raid6: sse2x2 3454 MB/s
[ 0.984011] raid6: sse2x4 3789 MB/s
[ 0.984018] raid6: using algorithm sse2x4 (3789 MB/s)
[ 0.984026] md: raid6 personality registered for level 6
[ 0.984034] md: raid5 personality registered for level 5
[ 0.984039] md: raid4 personality registered for level 4
[ 1.000477] md: raid10 personality registered for level 10
Done.
Begin: Running /scripts/init-premount ...
Done.
Begin: Mounting root file system... ...
Begin: Running /scripts/local-top ...
Done.
Begin: Waiting for root file system... ...
Done.
Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the system wait long enough?)
- Check root= (did the system wait for the right device?)
- Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/sda1 does not exist. Dropping to a shell!

BusyBox v1.10.2 (Ubuntu 1:1.10.2-2ubuntu7) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs)

And thats what i see in xend.log:

[2010-08-14 07:36:48 xend 3417] DEBUG (DevController:116) DevController: writing {'domain': 'i-3673062A', 'frontend': '/local/domain/5/device/vbd/2049', 'format': 'raw', 'dev': 'sda1', 'state': '1', 'params': '/usr/local/eucalyptus//admin/i-3673062A/root', 'mode': 'w', 'online': '1', 'frontend-id': '5', 'type': 'file'} to /local/domain/0/backend/vbd/5/2049.
[2010-08-14 07:36:48 xend.XendDomainInfo 3417] DEBUG (XendDomainInfo:634) Checking for duplicate for uname: /usr/local/eucalyptus//admin/i-3673062A/ephemeral [file:/usr/local/eucalyptus//admin/i-3673062A/ephemeral], dev: sda2:disk, mode: w
[2010-08-14 07:36:48 xend 3417] DEBUG (blkif:27) exception looking up device number for sda2:disk: [Errno 2] No such file or directory: '/dev/sda2:disk'

Mon, 08/16/2010 - 23:13
#3
shtainberg
Offline
Joined: 07/19/2010
Anyone?

Hi,

Any ideas to my problem?

Thanks

Tue, 08/17/2010 - 04:34
#4
tejparkash
Offline
Joined: 09/03/2009
Try on Xen

First try to boot the same image with same kernel (eri) on the Xen machine, before experimenting with eucalyptus. My take is that this has nothing to do with eucalyptus as you can't tweek any cmd params.

Tue, 08/31/2010 - 04:14
#5
vagoskar
Offline
Joined: 03/20/2010
Hello, I am having the same

Hello,

I am having the same problem using KVM and the stock ubuntu image. Are there any workarounds? Some of my custom images seem to be immune to the problem.

Thanks

Tue, 08/31/2010 - 11:52
#6
graziano
Offline
Joined: 01/14/2010
Hello, do you have /dev/sda*

Hello,

do you have /dev/sda* on your host machine? If not. can you create them and try again? I think that xen requires the devices to be present even though the host is not using them.

cheers
graziano

Tue, 08/31/2010 - 11:54
#7
graziano
Offline
Joined: 01/14/2010
Hello, I don't think you are

Hello,

I don't think you are having the same problem since the problem of the OP was a Xen hypervisor issue. Would you mind to start a new thread?

cheers
graziano

Wed, 09/01/2010 - 03:51
#8
vagoskar
Offline
Joined: 03/20/2010
Hi again, Following your

Hi again,

Following your suggestion, I've organized everything in a new post here:
http://72.47.234.81/forum/eucalyptus-200-debian-squeeze

Thanks

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