我创建了自己的AMI并在Amazon EC2上注册了它。但是，当AMI启动时，我收到以下错误：
内核恐慌 - 未同步：VFS：无法在未知块（8,1）上挂载根fs
图像在本地运行没有任何问题。
fstab包含：
proc /proc proc defaults 0 0
/dev/sda1 / ext3 relatime,errors=remount-ro 0 1
使用以下命令
创建图像ec2-bundle-image -i image.raw -r i386 -c cert-xxx.pem -k pk-xxx.pem --user 123456
完整的AMI启动日志：
Linux version 2.6.16-xenU (builder@xenbat.amazonsa) (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Mon May 28 03:41:49 SAST 2007
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 000000006a400000 (usable)
980MB HIGHMEM available.
727MB LOWMEM available.
NX (Execute Disable) protection: active
IRQ lockup detection disabled
Built 1 zonelists
Kernel command line: root=/dev/sda1 ro 4
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: 2666.666 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: ee000000-f53fe000, maxmem 2d7fe000
Memory: 1718700k/1748992k available (1958k kernel code, 20948k reserved, 620k data, 144k init, 1003528k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 5335.60 BogoMIPS (lpj=26678013)
Mount-cache hash table entries: 512
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
Checking 'hlt' instruction... OK.
Brought up 1 CPUs
migration_cost=0
Grant table initialized
NET: Registered protocol family 16
Brought up 1 CPUs
xen_mem: Initialising balloon driver.
highmem bounce pool size: 64 pages
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
i8042.c: No controller found.
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Xen virtual console successfully installed as tty1
Event-channel device installed.
netfront: Initialising virtual ethernet driver.
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
Registering block device major 8
IP route cache hash table entries: 65536 (order: 6, 262144 bytes)
TCP established hash table entries: 262144 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
Using IPI No-Shortcut mode
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1)
答案 0 :(得分：11)
尝试使用正确的AKI和ARI注册AMI。
答案 1 :(得分：2)
后人： 我复制了一个我自己从东部地区到美国西部和欧洲地区的AMI。从该AMI创建实例时，我必须查找该区域的正确内核映像 首先，我查看us-east kernel的名称：
ec2-describe-images --headers -o amazon --filter "name=pv-grub-*.gz"
Type ImageID Name Owner State Accessibility ProductCodes Architecture ImageType KernelId RamdiskId Platform RootDeviceType VirtualizationType Hypervisor
IMAGE aki-659ccb0c amazon/pv-grub-hd00_1.04-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-499ccb20 amazon/pv-grub-hd00_1.04-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
IMAGE aki-8f9dcae6 amazon/pv-grub-hd0_1.04-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-919dcaf8 amazon/pv-grub-hd0_1.04-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
IMAGE aki-b2aa75db amazon/pv-grub-hd00_1.03-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-b4aa75dd amazon/pv-grub-hd00_1.03-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
IMAGE aki-b6aa75df amazon/pv-grub-hd0_1.03-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-88aa75e1 amazon/pv-grub-hd0_1.03-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
我在us-east中使用的内核是aki-b4aa75dd，其名称为amazon/pv-grub-hd00_1.03-x86_64.gz。
然后我在us-west查找内核映像：
ec2-describe-images --region us-west-1 -o amazon --filter "name=pv-grub-*.gz" ##
IMAGE aki-960531d3 amazon/pv-grub-hd00_1.04-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-920531d7 amazon/pv-grub-hd00_1.04-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
IMAGE aki-8e0531cb amazon/pv-grub-hd0_1.04-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-880531cd amazon/pv-grub-hd0_1.04-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
IMAGE aki-e97e26ac amazon/pv-grub-hd00_1.03-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-eb7e26ae amazon/pv-grub-hd00_1.03-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
IMAGE aki-f57e26b0 amazon/pv-grub-hd0_1.03-i386.gz amazon available public i386 kernel instance-store paravirtual xen
IMAGE aki-f77e26b2 amazon/pv-grub-hd0_1.03-x86_64.gz amazon available public x86_64 kernel instance-store paravirtual xen
...然后告诉我，us-west中具有相同名称的内核的内核ID为aki-eb7e26ae。