Hi
I am trying to create
a domU using the nfs mount. But I am getting
some problem which I
am listing down. I need your help in solving the same.
xm create -c nfs
vmid=1 gives the following error : Error that I am getting is listed in red
Font color.
Linux version
2.6.16-1.2122_FC5xenU
(bhcompile@xxxxxxxxxxxxxxxxxxxxxxxxxxx)
(gcc version 4.1.0 20060304
(Red Hat 4.1.0-3)) #1
SMP Sun May 21 15:52:00 EDT 2006 BIOS-provided
physical RAM map:
Xen: 0000000000000000
- 0000000020000000 (usable) 0MB HIGHMEM
available.
520MB LOWMEM
available.
Using x86 segment
limits to approximate NX protection IRQ lockup
detection disabled
Built 1 zonelists Kernel command line:
ip=10.112.77.71:10.112.69.119::255.255.255.0::eth0:off
root=/dev/nfs
nfsroot=10.112.69.119:/linuxfs
Enabling fast FPU save and restore...
done.
Enabling unmasked SIMD
FPU exception support... done.
Initializing CPU#0
PID hash table
entries: 4096 (order: 12, 65536 bytes) Xen reported:
2666.756 MHz
processor.
Dentry cache hash
table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table
entries: 65536 (order: 6, 262144 bytes)
Software IO TLB
disabled vmalloc area: e1000000-fb3fe000, maxmem
33ffe000
Memory:
514048k/532480k available (1655k kernel code, 9896k reserved,
618k data, 132k init,
0k highmem) Checking if this processor honours
the WP bit even in
supervisor mode...
Ok.
calibrate_delay_direct()
failed to get a good estimate for
loops_per_jiffy.
Probably due to long
platform interrupts. Consider using "lpj=" boot
option.
Security Framework
v1.0.0 initialized
SELinux:
Initializing.
SELinux:
Starting in permissive mode
selinux_register_security:
Registering secondary module capability
Capability LSM
initialized as secondary Mount-cache hash table
entries: 512
CPU: Trace cache: 12K
uops, L1 D cache: 16K
CPU: L2 cache: 1024K
Checking 'hlt'
instruction... OK.
Brought up 1 CPUs
0
Grant table
initialized
NET: Registered
protocol family 16
Brought up 1 CPUs
xen_mem: Initialising
balloon driver.
audit: initializing
netlink socket (disabled)
audit(1152271275.312:1):
initialized
VFS: Disk quotas
dquot_6.5.1
Dquot-cache hash table
entries: 1024 (order 0, 4096 bytes)
SELinux:
Registering netfilter hooks
Initializing
Cryptographic API
ksign: Installing
public key data
Loading keyring
- Added public key
43645308A4C9E5AD
- User ID: Red Hat,
Inc. (Kernel Module GPG key) io scheduler noop
registered io
scheduler anticipatory registered io scheduler deadline
registered io
scheduler cfq registered (default)
rtc: IRQ 8 is not free.
i8042.c: No controller
found.
RAMDISK driver
initialized: 16 RAM disks of 16384K size 1024 blocksize
Xen virtual console
successfully installed as tty1 Event-channel
device installed.
Uniform Multi-Platform
E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz
system bus speed for PIO modes; override with
idebus=xx ide-floppy
driver 0.99.newide
mice: PS/2 mouse
device common for all mice
md: md driver 0.90.3
MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version
4.39
NET: Registered protocol
family 2
IP route cache hash
table entries: 32768 (order: 5, 131072 bytes) TCP
established hash table
entries: 131072 (order: 9, 2621440 bytes) TCP
bind hash table
entries: 65536 (order: 8, 1310720 bytes)
TCP: Hash tables
configured (established 131072 bind 65536) TCP reno
registered TCP bic
registered Initializing IPsec netlink socket
NET: Registered
protocol family 1
NET: Registered
protocol family 17
Using IPI No-Shortcut
mode
XENBUS: Timeout
connecting to devices!
md: Autodetecting RAID
arrays.
md: autorun ....
md: ... autorun DONE.
VFS: Cannot open root device "nfs" or
unknown-block(0,255) Please
append a correct "root=" boot option Kernel
panic - not syncing: VFS:
Unable to mount root fs on
unknown-block(0,255)
[<c01178a0>] panic+0x3c/0x188
[<c033ca24>] mount_block_root+0x19c/0x1aa
[<c033ca7b>]
mount_root+0x49/0x4e [<c033cb40>]
prepare_namespace+0xc0/0xf1
[<c0102267>] init+0x23e/0x2fe
[<c0102029>] init+0x0/0x2fe
[<c01029ad>] kernel_thread_helper+0x5/0xb
The config file nfs
that I am using is :
kernel =
"/boot/vmlinuz-2.6.16-1.2122_FC5xenU"
memory = 512
name =
"vm01"
vif = [ '' ]
ip =
"10.112.77.71"
netmask=
'255.255.255.0'
root =
"/dev/nfs"
nfs_server =
'10.112.69.119'
nfs_root =
'/linuxfs'
The whole filesystem
is copied on 10.112.69.119 under /linuxfs. And I
am able to mount this
on any remote system.
Actually , the problem
here lies with "root=/dev/nfs", what it
actually points to ?
Can any body help me out to solve this problem?
Thanks & Regards
Nitesh Gangrade
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