ALL,
I have a software that I'm trying to build on both host machine and VirtualBox client.
Both machine use the same RHEL7 OS and exctly the same set of Makefile's.
However the build time on the host is much faster than on VM.
Is there a way to improve the build time so it can at least be comparable with the host one?
TIA!!
Related
I am trying to install VMWare ESXi on a fresh hetzner server machine, I have ordered the machine with 4-port hardware RAID controller and 4 SSDs in total. I created an Array with RAID5 configuration, now if I reboot the server with VMWare-VMvisor Installer (tried with version 5.5 update03 and 6.5 update01), at the end of initializing the setup, it asks for the harddrive, but shows nothing (no option to select).
Can someone please tell me what have I done wrong? I thought its due to the RAID configuration but it doesn't seems like that.
I am using KVM hypervisor and have spun up 2 VMs(16vCpus, 16GB Memory) to run c++ builds. I started off with qcow2 and was seeing performance issues and changed it to raw format, cache=None. The c++ compile does well with raw format, however when the linker is run, the VM crawls and takes a long time to link as memory is swapping. My KVM host is a centos7 machine with 32CPUs, 64GB RAM, SATA drive. Any advise is appreciated.
I ran the yum on CentOS 6.3, so that it turned into another kernel CentOS 6.5. After restart of the VirtualBox I couldn't anymore run neither the old nor the new OS. Do you know a way to downgrade to CentOS 6.3? How can I get into the machine with SSH without knowing it's IP address?
As for your second question, you require a DNS service and maybe you have it; you can check the settings of your DHCP server where list the hostname of your virtual machine. Assuming that you are in a scenario where you have a DHCP and DNS server normally called "Modem Router" and do require SSH Connection temporarily.
Now the first question, I have a lot to say, but to my knowledge, it is difficult to make a "downgrade" on linux on all packages that could be updated, if it is only the kernel and it is another matter. I suggest:
https://www.centos.org/docs/2/rhl-cg-en-7.2/buildkernel-bootloader.html
This question must be a repeat since it sounds obvious but I cannot seem to find a solution online. I have win 7 x64 running vmware workstation. I need to create a guest vm which is a clone of my host os. (win 7 x64). Can this be done ? If yes please post the link or getting started solution or steps. Do not confuse with the clone feature in vm. That merely clones an existing guest vm so you can take it to another machine. thanks
The VMware Converter does what you want. I tested that sometime ago and it worked pretty good. But I think you need a second Windows license for that.
Ok, here's a very short and to the point question. When trying to import a virtual PC 2004 Windows 2003 Server VM in VM Workstation 6.0.2 I'm getting an error 'unable to determine guest operating system'. Soo how to fix?
From here:
Make sure that that the VM is not currently running in VMware Server.
Make sure that VMware Server does not have a lock on the VM’s files. You have have to stop all VMware Server Services and/or reboot the (VMWare) server.
Make sure you have appropriate permissions to the VM’s files.
This is a fairly generic error from VMware Converter so I would try the following:
Step 1. Make sure you are running the latest version of VMware Converter. Updates seem to come pretty often for this tool.
Step 2. Check the VMware Converter log file. More often than not you will find the source of your problem here.