In the last few weeks I tried some versions of Linux on lguest and noted a particularly behavior on my machine so I'd like to ask few questions about lguest.
Basically I'm using the following configuration for lguest in my .config file: CONFIG_PARAVIRT=y CONFIG_LGUEST_GUEST=y CONFIG_HIGHMEM64G=n CONFIG_PHYSICAL_ALIGN=0x100000 CONFIG_EXPERIMENTAL=y CONFIG_VIRTIO_BLK=m CONFIG_VIRTIO_NET=m CONFIG_TUN=m CONFIG_LGUEST=m I'm tried some variations too, for example. CONFIG_VIRTIO_BLK=y CONFIG_VIRTIO_NET=y The following example from lguest.txt (Documentation) sometimes works and sometimes doesn't work... ~#Documentation/lguest/lguest --tunnet=192.168.19.1 --block=/root/initrd-1.1-i386.img 64 vmlinux root=/dev/vda (...) IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. Using IPI No-Shortcut mode VFS: Cannot open root device "vda" or unknown-block(254,0) Please append a correct "root=" boot option; here are the available partitions: fe00 3560 vda driver: virtio_blk Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(254,0) lguest: CRASH: VFS: Unable to mount root fs on unknown-block(254,0) As in other thread when I asket about lguest + nfs I got the same results... I'd like to know: 1) Is module virtio_blk responsible to create /dev/vda? 2) if yes, must I compile as built-in? 3) I missed some .config option, I think sometimes that I missed some important option about memory alignment, etc... All this tests were performed on kernel #2.6.26.3. Best Regards, Tiago Maluta
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