linux VPS内核崩溃，如何备份数据？
谢谢大家了， 特价VPS，官方没有备份， 但不知道为什么官方的一个节点内核崩溃了，官方对此的回复如下，可是我却好长时间没有备份这个VPS的数据了，现在怎么办？ 怎么取回数据？ 谢谢了.The console shows the following:
usbcore: registered new interface driver hiddev
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
GRE over IPv4 demultiplexor driver
TCP cubic registered
Initializing XFRM netlink socket
NET: Registered protocol family 17
Using IPI No-Shortcut mode
registered taskstats version 1
XENBUS: Device with no driver: device/console/0
XENBUS: Device with no driver: device/vbd/51713
XENBUS: Device with no driver: device/vbd/51714
XENBUS: Device with no driver: device/vif/0
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
Initalizing network drop monitor service
Freeing unused kernel memory: 536k freed
Write protecting the kernel text: 4544k
Write protecting the kernel read-only data: 2004k
dracut: dracut-004-356.el6
udev: starting version 147
dracut: Starting plymouth daemon
dracut Warning: No root device "block:/dev/xvda1" found
dracut Warning: Boot has failed. To debug this issue add "rdshell" to the
kernel command line.
dracut Warning: Signal caught!
dracut Warning: Boot has failed. To debug this issue add "rdshell" to the
kernel command line.
Kernel panic - not syncing: Attempted to kill init!
I don't believe that this has anything to do with the host node crash. This
seems to be a problem inside your VPS that would have occurred upon any
restart. I've changed your /boot/grub/grub.conf to boot the previous kernel
but it did not help. I recommend to re-install your VPS and restore the data
from your backup.
Please do not hesitate to ask if you have further questions.
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