Arm gem5完整系统Linux引导失败，错误为；内核死机-不同步：VFS:无法装载根fs“；
我想在gem5的fs模式下运行arm的linux系统，我从以下地址下载相关文件： 我能够配置正确的文件路径，但最终在terminal2中获得了以下输出：Arm gem5完整系统Linux引导失败，错误为；内核死机-不同步：VFS:无法装载根fs“；,arm,gem5,Arm,Gem5,我想在gem5的fs模式下运行arm的linux系统，我从以下地址下载相关文件： 我能够配置正确的文件路径，但最终在terminal2中获得了以下输出： [ 0.661620] No filesystem could mount root, tried: [ 0.661621] ext3 [ 0.661650] ext4`enter code here` [ 0.661663] ext2 [ 0.661676] vfat [ 0.661690]
[ 0.661620] No filesystem could mount root, tried:
[ 0.661621] ext3
[ 0.661650] ext4`enter code here`
[ 0.661663] ext2
[ 0.661676] vfat
[ 0.661690] fuseblk
[ 0.661703]
[ 0.661728] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(254,0)
warn: Tried to read RealView I/O at offset 0x60 that doesn't exist
warn: Tried to write RVIO at offset 0xa8 (data 0) that doesn't exist
warn: Kernel panic in simulated kernel
./build/ARM/gem5.opt configs/example/arm/starter_fs.py --cpu="minor" --num-cores=4 --disk-image=/home/ad/GEM5/ARM_GEM5/gem5/my_image/disks/aarch64-ubuntu-trusty-headless.img --dtb=/home/ad/GEM5/ARM_GEM5/gem5/my_image/binaries/armv7_gem5_v1_4cpu.dtb --kernel=/home/ad/GEM5/ARM_GEM5/gem5/my_image/binaries/vmlinux
关于，以下是此类问题的完整诊断程序： 总之，您必须确保：
- 内核具有读取磁盘类型的配置，通常用于模拟：
这似乎是问题所在，因为上面没有给出分区列表？请确认。如果不是，内核似乎无法从磁盘读取字节CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO_BLK=y - 内核具有读取文件系统类型的配置。但是内核提到了ext2、3、4，所以这可能不是问题所在
- 您将root=kernel CLI指向正确的分区
我还强烈建议您首先让它在QEMU上运行，它的启动速度要快得多。我也遇到了类似的问题。使用原始的
starter\u fs.py[ 0.224367] List of all partitions:
[ 0.224394] fe00 1048320 vda
[ 0.224397] driver: virtio_blk
[ 0.224440] fe01 1048288 vda1 00000000-01
[ 0.224441]
[ 0.224480] No filesystem could mount root, tried:
[ 0.224481] ext3
[ 0.224510] ext4
[ 0.224524] ext2
[ 0.224537] squashfs
[ 0.224551] vfat
[ 0.224566] fuseblk
[ 0.224579]
[ 0.224606] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(254,0)
[ 0.224656] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0+ #1
[ 0.224692] Hardware name: V2P-CA15 (DT)
[ 0.224717] Call trace:
[ 0.224741] dump_backtrace+0x0/0x1c0
[ 0.224765] show_stack+0x14/0x20
[ 0.224790] dump_stack+0x8c/0xac
[ 0.224812] panic+0x130/0x288
[ 0.224836] mount_block_root+0x22c/0x294
[ 0.224861] mount_root+0x140/0x174
[ 0.224884] prepare_namespace+0x138/0x180
[ 0.224910] kernel_init_freeable+0x1c0/0x1e0
[ 0.224939] kernel_init+0x10/0x108
[ 0.224961] ret_from_fork+0x10/0x18
[ 0.224987] Kernel Offset: disabled
[ 0.225009] CPU features: 0x21c06492
[ 0.225032] Memory Limit: 2048 MB
[ 0.225056] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(254,0) ]---
starter\u fs.py[ 0.228847] EXT4-fs (vda1): mounted filesystem without journal. Opts: (null)
[ 0.228906] VFS: Mounted root (ext4 filesystem) on device 254:1.
[ 0.229539] devtmpfs: mounted
[ 0.229792] Freeing unused kernel memory: 448K
INIT: version 2.88 booting
[ 0.234168] random: fast init done
Starting udev
[ 0.277039] udevd[715]: starting version 182
[ 0.411534] EXT4-fs (vda1): re-mounted. Opts: block_validity,delalloc,barrier,user_xattr
Starting Bootlog daemon: bootlogd.
[ 0.426573] random: dd: uninitialized urandom read (512 bytes read)
Populating dev cache
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1
hwclock: can't open '/dev/misc/rtc': No such file or directory
Mon Jan 27 08:00:00 UTC 2014
hwclock: can't open '/dev/misc/rtc': No such file or directory
INIT: Entering runlevel: 5
Configuring network interfaces... ifconfig: SIOCGIFFLAGS: No such device
Starting rpcbind daemon...rpcbind: cannot create socket for udp6
rpcbind: cannot create socket for tcp6
done.
rpcbind: cannot get uid of '': Success
creating NFS state directory: done
starting statd: done
Starting auto-serial-console: done
Stopping Bootlog daemon:
bootlogd.
Last login: Mon Jan 27 08:00:00 UTC 2014 on tty1
INIT: no more processes left in this runlevel
root@genericarmv8:~# id
id
uid=0(root) gid=0(root) groups=0(root)
root@genericarmv8:~#
“root=/dev/vda”，“root=/dev/vda1”，build/ARM/gem5.opt-configs/example/ARM/starter_fs.py--cpu=“hpi”--num cores=1--disk image=“linaro-minimal-aarch64.img”--kernel=“vmlinux.arm64”[ 0.228847] EXT4-fs (vda1): mounted filesystem without journal. Opts: (null)
[ 0.228906] VFS: Mounted root (ext4 filesystem) on device 254:1.
[ 0.229539] devtmpfs: mounted
[ 0.229792] Freeing unused kernel memory: 448K
INIT: version 2.88 booting
[ 0.234168] random: fast init done
Starting udev
[ 0.277039] udevd[715]: starting version 182
[ 0.411534] EXT4-fs (vda1): re-mounted. Opts: block_validity,delalloc,barrier,user_xattr
Starting Bootlog daemon: bootlogd.
[ 0.426573] random: dd: uninitialized urandom read (512 bytes read)
Populating dev cache
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1
hwclock: can't open '/dev/misc/rtc': No such file or directory
Mon Jan 27 08:00:00 UTC 2014
hwclock: can't open '/dev/misc/rtc': No such file or directory
INIT: Entering runlevel: 5
Configuring network interfaces... ifconfig: SIOCGIFFLAGS: No such device
Starting rpcbind daemon...rpcbind: cannot create socket for udp6
rpcbind: cannot create socket for tcp6
done.
rpcbind: cannot get uid of '': Success
creating NFS state directory: done
starting statd: done
Starting auto-serial-console: done
Stopping Bootlog daemon:
bootlogd.
Last login: Mon Jan 27 08:00:00 UTC 2014 on tty1
INIT: no more processes left in this runlevel
root@genericarmv8:~# id
id
uid=0(root) gid=0(root) groups=0(root)
root@genericarmv8:~#
我将配置添加到内核中，现在终端显示以下内容：“[0.881139]VFS:无法打开根设备“vda”或未知块（0,0）：错误-6[0.881182]请添加正确的“root=”引导选项；以下是可用分区：[0.881232]0100 4096 ram0”。接下来，我修改根选项：“root=/dev/ram1”。但我仍然收到无法装入的错误消息，并且列出的分区列表是ram0-15。@SiqingFu我不确定
/dev/ramroot=/dev/vdavda1vda2