Switching over to virtualbox, as it appears an issue with their kernel
module (i.e. not linux kernel issue).
** Description changed:
Running 16.04 server without X under latest Oracle Virtual Box 5.0.12 on
Windows. After issuing 'shutdown -r now' the following boot process is not
successful and hangs with message:
---[ end of Kernel panic - not syncing: VFS: unable to mound root fs on
unknown-block(0,0)
If using 'shutdown -h now' and then staring the machine anew from
Virtual Box manager, then the system starts as it should. Thus, for
short, warm reboot hangs and cold reboot operates as desired. I have the
feeling that this behavior was introduced with kernel 4.3, but I cannot
swear on it.
+
+ WORKAROUND: Switch network adapter type to Intel Pro/1000 MT Desktop
+ from paravirtualized network (virtio-net).
---
AlsaDevices:
total 0
crw-rw----+ 1 root audio 116, 1 Jan 6 11:34 seq
crw-rw----+ 1 root audio 116, 33 Jan 6 11:34 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=cbc2edd0-9886-40c6-bf14-d75f638fc4cf
InstallationDate: Installed on 2015-12-23 (14 days ago)
InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Alpha amd64
(20151115)
IwConfig:
enp0s3 no wireless extensions.
lo no wireless extensions.
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: innotek GmbH VirtualBox
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.3.0-5-generic
root=UUID=07e383b5-7e12-4530-8ae0-75c104f67e2b ro
ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3
RelatedPackageVersions:
linux-restricted-modules-4.3.0-5-generic N/A
linux-backports-modules-4.3.0-5-generic N/A
linux-firmware 1.154
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 4.3.0-5-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.board.name: VirtualBox
dmi.board.vendor: Oracle Corporation
dmi.board.version: 1.2
dmi.chassis.type: 1
dmi.chassis.vendor: Oracle Corporation
dmi.modalias:
dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH
** Package changed: linux (Ubuntu) => virtualbox (Ubuntu)
** Changed in: virtualbox (Ubuntu)
Status: Incomplete => New
** Tags removed: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.4-rc8
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https://bugs.launchpad.net/bugs/1531455
Title:
reboot under Oracle Virtual Box not possible
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