weeix's questions

I'm trying to clone Windows Server 2008 from a physical 1TB HDD to a VM with smaller HDD (160GB) in proxmox (KVM). This can't be done with Clonzilla's disk-to-disk mode, so I resized the partition using Windows Server's built-in tool, rebooted the physical server to ensure that it still works, used fdisk to prepare the target partition, then cloned the source partition to the VM.

When I tried to boot the VM, it stucks at this line:

Booting from Hard Disk ...

I realized that I didn't clone the boot record along with the partition, so I cloned it using dd if=/dev/sda of=mbr.bak bs=512 count=1 in the physical machine, and dd if=mbr.bak of=/dev/sda bs=512 count=1 in the VM, used fdisk to prepare the target partition, then cloned the partition again. However, when I boot the VM, it stuck at these lines instead:

A disk read error occured
Press Ctrl+Alt+Del to restart

I booted from a Windows 2008 CD and choosed repair, the CD found my OS partition with these info:

Operating System: Microsoft Windows Server 2008
Partition Size: 0 MB
Location: (Unknown) Local Disk

Then I opened the command line and tried these commands with no success:

• bootrec.exe /fixmbr & Restart
• bootrec.exe /fixboot & Restart
• bootrec.exe /rebuildbcd & Typed Y to add C:\Windows to boot list & Restart

The VM still boots with the same error, so I booted into the CD again. However, this time the CD found my OS partition with these info instead:

Operating System: Windows Server (R) 2008 Standard
Partition Size: 163838 MB
Location: (C:) Local Disk

And I can't proceed to the repair menu anymore. When I choose the OS partition, an error popup appears with this message:

This version of System Recovery Options is not compatible with the version of Windows you are trying to repair. Try using a recovery disc that is compatible with this version of Windows.

Please help me with booting this poor VM up.

I'm not sure if this is the right way to migrate an OS to a smaller disk, if you have a smarter way of doing this, please point me in the right direction.

Thank you.

PS. Excuse my poor English, I didn't mean to be rude in anyway.

I'm trying to remove a bunch of packages that have 'abc' in it. However, I don't want to remove 'abc-def'. How can I accomplish this?

For example, how to remove every packages that have 'php' in it, except 'php-common'?

I tried adding --exclude to the command, but it doesn't work as expected - 'php-common' was still in the deletation list.

# yum --exclude=php-common remove *php*
Loaded plugins: fastestmirror
Resolving Dependencies
--> Running transaction check
---> Package php-cli.x86_64 0:5.4.16-36.el7_1 will be erased
---> Package php-common.x86_64 0:5.4.16-36.el7_1 will be erased
---> Package php-fpm.x86_64 0:5.4.16-36.el7_1 will be erased
---> Package php-mcrypt.x86_64 0:5.4.16-3.el7 will be erased
---> Package php-mysqlnd.x86_64 0:5.4.16-36.el7_1 will be erased
---> Package php-pdo.x86_64 0:5.4.16-36.el7_1 will be erased
--> Finished Dependency Resolution

yum remove *php* !php-common,--exclude=php-common* and --exclude=php-common.x86_64 0:5.4.16-36.el7_1 doesn't work either.

I'm asking this because I have a huge package (~1.5 GB) that I still need and don't want to re-download it because my internet is slow.

OS: CentOS 7.

I want to see which nodes is currently online in my OCFS2 cluster, how can I accomplish it using command line tools?

• OCFS2 Tools: 1.8.0-10.el6
• UEK Kernel: 2.6.39-400.264.4.el6uek
• OS: CentOS 6.7

I'm trying to use a SAN storage as Primary Storage for my Cloudstack KVM Cluster in the Basic Installation. Cloudstack's document says that, in order to use Fiber Channel for my SAN storage, I have to use Shared Mountpoint storage.

However, I can't select the Shared Mountpoint option in the Basic Installation - the only option available is NFS.

Screenshot of Add Primary Storage section in Cloudstack Basic Installation showing 'NFS' as the only option for Primary Storage

How can I add Shared Mountpoint storage as my Primary Storage?

• CloudStack: 4.5.2
• OS: CentOS 6.7

I'm trying to deploy RDO but can't follow some of its prerequisites:

In case your system is running with NetworkManager, you need to disable it.

Stop and disable NetworkManager:

systemctl stop NetworkManager
systemctl disable NetworkManager
systemctl enable network

I can follow the first two command with no problem. However, the third one gives me a response that I doesn't understand:

#systemctl enable network
network.service is not a native service, redirecting to /sbin/chkconfig.
Executing /sbin/chkconfig network on
The unit files have no [Install] section. They are not meant to be enabled
using systemctl.
Possible reasons for having this kind of units are:
1) A unit may be statically enabled by being symlinked from another unit's
   .wants/ or .requires/ directory.
2) A unit's purpose may be to act as a helper for some other unit which has
   a requirement dependency on it.
3) A unit may be started when needed via activation (socket, path, timer,
   D-Bus, udev, scripted systemctl call, ...).

The service seems to be inactive:

#systemctl status network.service
network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network)
   Active: failed (Result: exit-code) since Thu 2015-09-10 11:46:50 ICT; 28min ago

OS: CentOS Linux release 7.1.1503 (Core) (Minimal Installation)

I'm unable to add a new volume (provisioned by a SAN storage) as a PhysicalVolume for the host's LVM volume. Here is the error message:

#sudo pvcreate /dev/sdc1 -v
  Device /dev/sdc1 not found (or ignored by filtering).

OS: Ubuntu 14.04.2 LTS (GNU/Linux 3.16.0-30-generic x86_64)

fdisk:

#sudo fdisk /dev/sdc -l

Disk /dev/sdc: 2198.0 GB, 2197999845376 bytes
237 heads, 20 sectors/track, 905689 cylinders, total 4292968448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 1048576 bytes
Disk identifier: 0x00031fdb

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1            2048  4292968447  2146483200   8e  Linux LVM

parted:

#sudo parted /dev/sdc
GNU Parted 2.3
Using /dev/sdc
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: HP MSA 2040 SAN (scsi)
Disk /dev/sdc: 2198GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  2198GB  2198GB  primary               lvm

filter (only uncommented lines):

filter = [ "a/.*/" ]
global_filter = [ "a|loop0|", "a|loop1|", "a|sda5|", "r|.*|" ]

partprobe:

sudo partprobe -s
/dev/sda: msdos partitions 1 2 <5>
/dev/sdb: msdos partitions 1 2
/dev/sdc: msdos partitions 1
/dev/sdd: msdos partitions 1
/dev/mapper/devstack--vg-swap_1: loop partitions 1
/dev/mapper/devstack--vg-root: loop partitions 1

What I've tried so far:

• fdisk /dev/sdc n, p, 1, ENTER 2 times, t, 8e, w
• (parted) mklabel msdos
• (parted) mklabel gpt
• (parted) mklabel loop
• zero filled the first sector of /dev/sdc
• zero filled /dev/sdc
• partprobe
• partprobe /dev/sdc
• reboot