Linux 核心的一個問題
是virtio 驅動,但是沒有啟動
[ 1.047924] md: ... autorun DONE. [ 1.050424] VFS: Cannot open root device "vda" or unknown-block(0,0): error -6 [ 1.053462] Please append a correct "root=" boot option; here are the available partitions: [ 1.056923] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 1.060340] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.16.18 #3 [ 1.061985] Call Trace: [ 1.062631] dump_stack+0x61/0x7d [ 1.063488] panic+0xe7/0x247 [ 1.064242] mount_block_root+0x26c/0x2d0 [ 1.065350] ? set_debug_rodata+0x17/0x17 [ 1.066324] mount_root+0x6a/0x6d [ 1.067002] prepare_namespace+0x139/0x171 [ 1.067834] kernel_init_freeable+0x22d/0x255 [ 1.068726] ? rest_init+0xb0/0xb0 [ 1.069427] kernel_init+0xe/0xff [ 1.070110] ret_from_fork+0x35/0x40 [ 1.071013] Kernel Offset: disabled [ 1.071699] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
I have compiled a new linux kernel with CONFIG_VIRTIO_BLK=y. But it doesn't boot and kernel panics. To kernel command line i tried passing root=/dev/vda and root=/dev/vda1 but same kernel panic comes every time. VIRTIO_NET was working fine when VIRTIO_BLK was not enabled and VM booted up fine. But with virtio-blk i see the below kernel panic. Can someone please suggest what could be going wrong?
VFS: Cannot open root device "vda" or unknown-block(253,0)^M Please append a correct "root=" boot option; here are the available partitions:^M fd00 8388608 vda driver: virtio_blk^M fd01 7340032 vda1 00000000-0000-0000-0000-000000000000^M
fd02 512000 vda2 00000000-0000-0000-0000-000000000000^M fd03 535552 vda3 00000000-0000-0000-0000-000000000000^M Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(253,0)^M
Regards, Saurabh -------------- next part -------------- An HTML attac