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[Qemu-devel] QEMU running busybox + customized kernel
From: |
Peter Teoh |
Subject: |
[Qemu-devel] QEMU running busybox + customized kernel |
Date: |
Thu, 12 Jun 2008 23:23:23 +0800 |
I followed the following instruction:
http://dev.gentoo.org/~solar/busybox/bbemu
and my commandline is like:
qemu -kernel /boot/vmlinuz-2.6.26-rc5 -append "console=ttyS0
root=/dev/hda init=/bin/sh rootfstype=ext3 ro" small_os_rootfs -initrd
/boot/initrd-2.6.26-rc5-4.img -nographic
I get the following trace:
Loading scsi_mod.ko module
[ 6.206933] SCSI subsystem initialized
[ 6.210050] insmod used greatest stack depth: 2944 bytes left
Loading sd_mod.ko module
[ 6.238568] Driver 'sd' needs updating - please use bus_type methods
Loading dock.ko module
[ 6.260651] ACPI Exception (utmutex-0263): AE_BAD_PARAMETER, Thread
C71AD6A0 could not acquire Mutex [1] [20080321]
[ 6.263898] No dock devices found.
Loading libata.ko module
Loading ata_piix.ko module
Loading uhci-hcd.ko module
[ 6.454178] USB Universal Host Controller Interface driver v3.0
Loading ohci-hcd.ko module
Loading ehci-hcd.ko module
Loading ahci.ko module
Loading dm-mod.ko module
[ 6.642118] device-mapper: ioctl: 4.13.0-ioctl (2007-10-18)
initialised: address@hidden
Loading dm-log.ko module
Loading dm-mirror.ko module
Loading dm-zero.ko module
Loading dm-snapshot.ko module
Making device-mapper control node
Scanning logical volumes
Reading all physical volumes. This may take a while...
No volume groups found
[ 6.852484] lvm used greatest stack depth: 2620 bytes left
Activating logical volumes
Volume group "clairevg" not found
Creating root device.
Mounting root filesystem.
[ 7.106232] kjournald starting. Commit interval 5 seconds
[ 7.106844] EXT3-fs: mounted filesystem with ordered data mode.
Setting up other filesystems.
Setting up new root fs
no fstab.sys, mounting internal defaults
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
WARNING: can't access /bin/sh
exec of init (/bin/sh) failed!!!: No such file or directory
[ 7.147743] nash-hotplug used greatest stack depth: 2532 bytes left
[ 7.149126] Kernel panic - not syncing: Attempted to kill init!
The other errors except for the last one ("exec of init (/bin/sh)
failed!!!: No such file or directory") I think can be ignored. So
why /bin/sh failed?
I changed the qemu commandline to (init=/bin/sh changed to init=/sbin/init):
qemu -kernel /boot/vmlinuz-2.6.26-rc5 -append "console=ttyS0
root=/dev/hda init=/sbin/init rootfstype=ext3 ro" small_os_rootfs
-initrd /boot/initrd-2.6.26-rc5-4.img -nographic
[ 6.945974] lvm used greatest stack depth: 2620 bytes left
Activating logical volumes
Volume group "clairevg" not found
Creating root device.
Mounting root filesystem.
[ 7.216936] kjournald starting. Commit interval 5 seconds
[ 7.217605] EXT3-fs: mounted filesystem with ordered data mode.
Setting up other filesystems.
Setting up new root fs
no fstab.sys, mounting internal defaults
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
[ 7.458915] mount used greatest stack depth: 2240 bytes left
Bummer, could not run '/bin/sh': No such file or directory
Bummer, could not run '/bin/sh': No such file or directory
Bummer, could not run '/etc/init.d/rcS': No such file or directory
Bummer, could not run '/bin/sh': No such file or directory
Bummer, could not run '/bin/sh': No such file or directory
Notice the last line keep repeating.......why???
I am looking for a HOWTO on qemu running Busybox + customized kernel
to test out the various kernel image. Anybody got any good
suggestions?
Thanks.
--
Regards,
Peter Teoh
- [Qemu-devel] QEMU running busybox + customized kernel,
Peter Teoh <=