熟悉谷歌云维护的请进来

大佬好，我用的 google computer engine 实例重启后无法启动，报如下错误：
[ 1.917614] md: Waiting for all devices to be available before autodetect
[ 1.918978] md: If you don't use raid, use raid=noautodetect
[ 1.920328] md: Autodetecting RAID arrays.
[ 1.921028] md: autorun ...
[ 1.921429] md: ... autorun DONE.
[ 1.922029] List of all partitions:
[ 1.922577] No filesystem could mount root, tried:
[ 1.923603] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 1.924765] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-1062.18.1.el7.x86_64 #1
[ 1.926040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 1.927731] Call Trace:
[ 1.928142] [<ffffffff86b7b416>] dump_stack+0x19/0x1b
[ 1.928889] [<ffffffff86b74a0b>] panic+0xe8/0x21f
[ 1.929566] [<ffffffff87189790>] mount_block_root+0x291/0x2a0
[ 1.930404] [<ffffffff871897f2>] mount_root+0x53/0x56
[ 1.931107] [<ffffffff87189931>] prepare_namespace+0x13c/0x174
[ 1.931913] [<ffffffff8718940e>] kernel_init_freeable+0x222/0x249
[ 1.932797] [<ffffffff87188b1f>] ? initcall_blacklist+0xb0/0xb0
[ 1.933693] [<ffffffff86b69c10>] ? rest_init+0x80/0x80
[ 1.934502] [<ffffffff86b69c1e>] kernel_init+0xe/0x100
[ 1.935271] [<ffffffff86b8dd37>] ret_from_fork_nospec_begin+0x21/0x21
[ 1.936174] [<ffffffff86b69c10>] ? rest_init+0x80/0x80
[ 1.938335] Kernel Offset: 0x5400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)

数据没有备份，现在又无法进入系统，倍感着急，为表心意，愿意支付费用，感谢！

podel

2020-03-20 10:17:26 +08:00

[ 1.917614] md: Waiting for all devices to be available before autodetect
[ 1.918978] md: If you don't use raid, use raid=noautodetect
[ 1.920328] md: Autodetecting RAID arrays.
[ 1.921028] md: autorun ...
[ 1.921429] md: ... autorun DONE.
[ 1.922029] List of all partitions:
[ 1.922577] No filesystem could mount root, tried:
[ 1.923603] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

同 3 楼。根文件系统无法挂载。
建议。新临时买一台。然后把这个磁盘挂载到新买的那台上去当做数据盘。看看是是咋回事。(如果是内核版本问题，也可以把启动的内核版本改回来)

xsen

2020-03-20 12:16:53 +08:00

提 Ticket 给 Google 是最合适的做法，也最保险。数据最重要

不过导致的原因呢，大致有如下几个，
1. 中间内核或驱动有升级，导致 panic
若确认是内核升级导致，可以进入 grub 修改引导，用原先的内核就可以

2. 硬盘损坏
某个分区或分区的某部分损坏。这个的话，可以创建新的实例，常识把这个硬盘（分区）挂靠到新的系统，若可以正常访问，则可以把数据备份出来

3. 其他
暂时没遇到过别的情况

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