I took a backup of a guest OS running in an LVM.When I took the backup I created a snpashot of LVM and mounted thatsnapshot in some location.Used rsnc to copy its contents to a USB drive.Can I boot "somehow"from this copy of Guest OS which is now in USB drive?I am using KVM on 64 bit 10.04.
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We have a disaster recovery solution for our database where a dump file is generated daily at 1:00 AM. We have tested importing the file, along with running another sql file that generates the appropriate database user accounts, into a database on a third-party server.
One question that came up was the following: Suppose the database crashes in the middle of the day, prior to that there were transactions that were entered into the database between the time the dump file was generated, and the crash occurred. We can restore the dump file to either the main or backup server. How can the transactions that were made between the time of the dump file and the crash be restored as well?
at work place I have an HP ProLiant DL580 with RedHat Enterprise Server 5.4 x64. Today I cloned this machine using clonezilla. What I would like to do is restore the image to VMWare machine for personal purpose (I cannot perform tests on production machine). But after restoring on VMWare I got "Kernel Panic". That's normal due to different hardware.
Now, is there a way to remove the Kernel Panic and correctly boot the machine? I ask our tech department for the RedHat CD1 to enter the "linux rescue" enviromnent, then try to re-read the hardware list with
# chroot /mnt/sysimage
# kudzu
Hi. I killed my /etc/apt/sources.list So i desided that dpkg-reconfigure will helps me to restore it, but I was wrong.
Code:
# dpkg-reconfigure apt
Why this command didnt restore sources.list file? Can someone give me standart sources.list for Ubunti 10.04 Server?
I'm getting ready to deploy a Ubuntu server in a remote location. I am deathly afraid of something going horribly wrong though, so what I'd like to do is be able to somehow image the system when it's working, and be able to restore that remotely via SSH if things go to hell. My first thoughts were that I could partition the hard drive, and install two separate instances of Ubuntu. One would be the server in it's working state, and the other one would be a separate instance of Ubuntu that I could boot into to restore an image (if that's possible).
1. If I had two separate instances of Ubuntu on two separate partitions, and I was currently booted into one of them, would it be possible to tell the Ubuntu server to reboot and boot into the other instance of Ubuntu on the other partition over SSH? (SSH is the only form of access I will have to the server)
2. Is there a better way to remotely restore a server than what I outlined above?
3. Also, I've used the dd command to make backups before, but it copies an entire hard drive byte for byte. Is there an argument I can tag on, or another command to use altogether that will only copy the bits that are being used?
I'm trying to install the Guest Additions for a VM running a guest Lucid Lynx Server. The problem I'm encountering is this: The vboxadd-install.log for vbox says it "couldn't find the sources of your current Linux kernel" and to "Specify KERN_DIR=<directory> and run Make again."
View 4 Replies View RelatedI have a local file server running Samba on Fedora 9. It's already configured and serves a few people without any problems. I am now trying to set up a new read-only share with the username 'guest' and the password 'guest'. However, with no success so far! If I log on as 'guest' with the password 'guest' like so:
Code:
su - guest
No problem. Once logged in, if I try:
Code:
smbclient //samba/share
I'm prompted for a password. If I enter 'guest' I get:
Code:
session setup failed: NT_STATUS_LOGON_FAILURE
If I enter nothing (null) I get:
Code:
Anonymous login successful
Domain=[RIVER] OS=[Unix] Server=[Samba 3.2.8-0.26.fc9]
tree connect failed: NT_STATUS_LOGON_FAILURE
OpenSUSE installed in a Virtualbox Virtual Machine and I want to set a shared folder.
1 - Set up a Virtual Machine and install OpenSUSE 11.2
2 - Create a shared folder on host (HostFolder)
3 - Setup the shared folder in Virtualbox Via the Virtual Machine details or via Devices > Shared Folders...
4 - Install dependencies for running the Virtualbox installer You need to install the right development kernelpackage for your machinetype (use 'zypper search -i kernel' to see what's installed) sudo zypper make gcc kernel-source kernel-hosttype/default-devel
5 - Run the Virtual Machine and go to Devices > Guest Additions This mounts an iso image in your OpenSUSE guest.
6 - Open a root terminal and run
cd /usr/src/linux
make oldconfig && make prepare && make scripts && make dep
cp ../linux-obj/$HOSTTYPE/default/Module.symvers .
make prepare
* A commenter on previously mentioned thread says this step is unnecessary but it doesn't work without on my system. I suggest trying step 7 first and returning to step 6 if that fails. *
7 - Run ./VirtualboxLinux yourhosttype .run from the mounted iso image.
8 - Create shared folder in OpenSUSE (GuestFolder)
9 - Test with sudo mount -t vboxsf HostFolder /home/user/GuestFolder It works? Great! Let's set up the system so it automounts for your regular useraccount instead of root-only access.
10 - Add this line to /etc/fstab HostFolder /home/user/GuestFolder vboxsf defaults,uid=1000,gid=1000 0 0
11 - It works for me but if it still doesn't automount after a reboot; sudo mount -a
I installed a Fedora 14 guest on a Fedora 14 host with Virtualbox, then i run these commands on the guest:yum install kernel-devel kernel-headersbut if i try to install the virtualbox-guest additions on the guest, is still complains about that it's unable to find the kernel source directory?Ha anyone succeded installing the guest additions on a guest Fedora 14?
View 2 Replies View RelatedI had a lot of trouble installing Guest Additions within the Fedora 13 Guest on a Linux host. I had to mount the vboxGuestadditions.iso from the Device --> CD/DVD Devices menu. Then I located the appropriate package for my system. In my case it was the AMD64 Linux version.I ran this as administrator in Terminal. I used the "bash" command followed by the package name. This was after CDing the the appropriate directory. The packaged installed, I then rebooted and it worked fine. (Something that would make this easier is to load a script into nautilus that would allow me to open a locatation as administartor at the open window. I'm sure there is something in Fedora to do this but I couldn't find it in a hurry so I used the command line way).
View 5 Replies View Relatedi've installed kubuntu 10.04 on a sun virtualbox , and when i tried to install the guest additions i got this error in the terminal:
Building the VirtualBox Guest Additions kernel modules. fail ! (Your system does not seem to be set up to build kernel modules. Look at /var/log/vboxadd-install.log to find out what went wrong) i'am running windows 7 as a host operating system .
I have Apache installed on CentOS 4.5. My website have to play music on page and i have to show the file path. Eg : my website is in /var/lib/apache/webapp/mywebsite and my music folder is in : /music/myfile.wav and i want to play music on this /music folder and allow guest to download file. How can i do this?
View 1 Replies View RelatedI have a new public mail server running under Vmware Server 2.0 installed on Windows Server 2008. I'm not satisfy about performance, virtual machine has got 3gb of ram and 2 virtual cpu. Physical machine has got one intel xeon cpu 2.4ghz quad core, 8 gb of ram and 3 hdd 500gb raid5. I already set this option: Fit all virtual machine memory into reserved host RAM. How can I increase performance? Are there any kernel build for virtual installation?
View 11 Replies View Related11.2 is installed as a guest under Citrix XenServer 5.5.2. When I try to go to runlevel 5, the X server logs say that /dev/fb0 is not found, and that no screens are found. The only other errors in the log are that it can't locate a core keyboard or mouse.
View 2 Replies View RelatedI'm running VMWare Server 2.0 on WindowsXP as host.I have guest O/S Linux Fedora 8. i cannot access USB drives on my VM. USB drive shows up on the VMware console window as part of my devices, like CD/RW drive, etc. But for the usb drive, it is GREYED OUT./proc/partitions never shows a USB device upon connection of the drive. I have tried googling this to death and found no solution that works.
View 1 Replies View RelatedI used to be able to access the web server I had running on my guest OS in Virtual Box from my host OS. I also had it set to the network settings of "Host Only Adapter". Then I needed to access the internet directly on the gues OS, so I changed my settings on the guest OS to "NAT" (in virtual box), and in /etc/network/interfaces, I removed the loopback stuff and the static IP I'd put in. Now no matter what I do, I cannot get it back to being accessible from the host os! I even did a completely NEW install of Ubuntu guest OS in Virtual box Guest OS: Ubuntu 10.04 Desktop Host OS: OpenSUSE 11.3 VirtualBox: 3.2.6
View 5 Replies View RelatedI am trying to set up Ubuntu server edition 10.10 in virtualbox (windows host). All is going well, except that I can't figure out how to install the guest additions. I know how to do it in the normal edition of Ubuntu, but when I navigate to media/cdrom, it's empty.
View 2 Replies View RelatedI configuring samba under Fedora 12, i just set in samba dialog Server Settings->Security and choose guest account: apache. The account is exist io the Samba Server, now i try to login from Windows to Linux share, server asks me login and password, however when i set apache as login and not set password, server asks me login again as the password is incorrect. As i understand under guest acount can login any windows user without the password.
View 4 Replies View RelatedI'm experiencing some rather severe problems after updating my Centos 5.4 system (Virtual Xen guest). What happens is that when the system boots it complains about missing .so files which prevents about 50% of the services installed from running.
I'm suspecting that it has something to do with selinux for two reasons: 1. The first services to go down complains about the security context of some files, and 2. selinux was kinda the reason I decided to update in the first place as it was disabled when it shouldn't be (enabled in system-config-securitylevel, disabled when running sestatus).
The whole boot-sequence ends with alot of "INIT: Id 'X' respawning too fast: disabled for 5 minutes"-messages (including all runlevels) before it goes stale, and I can do nothing.
The server in question had undergone very little tinkering from my part, pretty much none at all, the only services installed after installation was apache, mysql and webmin.
Details:
CentOS 5.4 is installed on both the host and guest.
The guest runs on an lvm-partition.
I have two other vm's(also CentOS) running just fine, altough I'm a bit weary of updating them .
Attached are some screenshots of the boot-process.
I hope some one here can share some insight on this problem. It's making me pretty nervous seeing that our whole network is run by CentOS-installations (not that I'm certain that CentOS is the culprit).
I have 4 VMs on a Linux host, call them A, B, C, D running on Z. I really don't care when A and B come up, but I would like to make sure that D comes up before C.I believe that in VMWare 2.x it's possible to change the boot order. Is this possible in 1.x as well? Is this done in /etc/vmware/vm-list? I see that there are a number of VMs listed there, including some that have long since been deleted.
View 1 Replies View RelatedNot sure if this post belongs here, but here it is.
Host: Win server 2003
Guest: Ubuntu server
Host: IS able to ping guest. Firewall is OFF. NOT able to access guest (which is a web-server) at browser.
Guest: NOT able to ping host. Running a web server, you can check the website: (pegajosa.com) is running under that virtual Linux server.
Problem: guest needs to access host's sql database and/or any resources.
Network: is bridged.
At the Linux box ifconfig -a code...
I've set up ubuntu server 10.04 x64 with kvm and bridged networking and installed win server 2008 as a guest os. The guest os has full access to the network including lan/wan but the host os can only reach my lan and not the wan. This is true even when the guest machine is powered off?I have to admit that my knowledge of networking, particularly with respect to linux is very flakey but surely if the guest has internet access this should also apply to the host? My only suggestion is an issue with mac addresses but i don't know where to start. Has anybody ran into this problem before?
View 3 Replies View RelatedI am new to virtual machines in general, and currently playing with the XEN-based VM in CentOS 5.5. Question: if neither virt-manager nor virsh (using "virsh edit <guest name>" and changing the name in the XML file) are designed to actually change a guest's name...then what is the recommended procedure for doing this?
View 1 Replies View RelatedI have a samba server with security user. I have a number of shares inside the share with different users logins. But while accessing the shares from windows, in the login prompt, by default username it takes as the guest. How will I disable the default guest user login ?
View 2 Replies View Relatedhost is windows 2003 server 64-bit
guest is ubuntu 9.04 server 64bit
Qemu : 0.11.1
Qemu manager: 7.0
from Qemu manager, if network card is using User Networking, it's a NAT and I can see that Guest Ubuntu has an ip address 10.0.2.15 and is able to access the internet. However, as Guest ubuntu is running server so I want to do use Tap networking and I assue with Tap, the Guest ubuntu will get an ip address which is in the same subnet as host machine by dhcp. so from Qemu Manager 7.0, I changed Network card to be:
NE2000PCI
Vlan Number =0
VLAN Type: Tap Networking
Mac address: tap0's mac address from host
TAP Network Adpator: Tap0
Note that tap0 was created by openvpn. and then fired Ubuntu guest, ifconfig shows no ip address on eth0 (which has the same mac address as Tap0) so the guest Ubuntu has no ip address and can't access public.
I am trying to install CentOS guest on CentOS 5.3 host. I have installed all the requirements for the same. As per documentation, only NETWORK install is supported if the guest is to be installed as paravirtalized.I copied the CentOS DVD in /home directory with folder name centos52 and exported it through NFS. When I run Virtual machine manager and give installation path as: nfs:<ip address of host>:/home/centos52 , the system while trying to create the storage fails and throws following error:Unable to complete install: 'Invalid install location: Mounting location nfs://<ip address of host>:/home/centos52 failed'
View 1 Replies View RelatedI have tried to install debian 5.0 and 4.0 without any luck. I have both tried virt-manager and virt-install with both debian-501-i386-netinst.iso, and full dvd. I't always gives me the same error:Starting install.Could not find an installable distribution at '/xen/debian-501-i386-netinst.iso'
[Code]...
I am using RackMonkey to map out my lab. Unfortunately, due to RM limitations, every user who accesses the site has write access UNLESS they are logged in as a user named "guest". I currently have Apache allowing only the users (sysadmins) in an LDAP group access to RM, but I would like to allow read-only access for other users as well.I found mod_authn_anon, but I am having trouble combining the two authentication methods. I am using Apache 2.2.18 (compiled myself) on SLES 11.1.
This is the common part:
Code:
AuthType Basic
AuthBasicProvider ldap anon
Order allow,deny
Allow from all
This part by itself works for the LDAP authentication:
Code:
AuthName "System Admins"
AuthLDAPURL "ldaps://example.com/ou=ldap,o=example.com?mail" SSL
Require ldap-group cn=SysAdmins,ou=memberlist,ou=groups,o=example.com
This part works by itself for guest access:
Code:
Anonymous guest
Anonymous_VerifyEmail Off
Anonymous_MustGiveEmail Off
Anonymous_LogEmail on
Require valid-user
But if I have both of the previous blocks enabled at once, then guest access does not work. If I throw in a "Satisfy any", then I am not prompted for a username at all. How can I allow access to this LDAP group and to a user named "guest", but not allow all valid LDAP users to log in?
I just ran into a weird problem with a CentOS 5.5 64-bit server running VirtualBox 3.2.8 (I would run Vmware Server 2.0.2 if not for the well known fact that Vmware doesn't care about its Server line anymore and it doesn't run on CentOS > 5.3 without major splits). I currently have two guests in that VirtualBox setup, a CentOS 5.5 64-bit and a Fedora 13 64-bit. The CentOS 5.5 guest shows less memory available than configured. If, for example, I give the virtual machine 512MB of memory the guest OS only recognizes 380MB. If I give it 768MB it only recognizes 637MB, and so on. I don't have that problem on the Fedora guest - 1024MB configured, 1024MB available.
View 13 Replies View RelatedSeveral months back I backed up a windows hard drive using an ubuntu live cd and this commanddd if=/dev/hdx | gzip > /path/to/image.gzI now want to restore that image but so far have not been successfulI have tried to restore using this commandsudo dd if=/path/to/file.gz of=/dev/sdb1After some time has passed, the terminal reads23568129+1 records in23568129+1 records out12066882348 bytes (12 GB) copied, 1327.65 s, 9.1 MB/sIf I reboot to windows with the 2nd hard drive connected as a slave. I go to my computer to try and browse the files of the restored HD but when I double click the drive, windows saysthe disk is not formatted.I have also tried sudo dd if=/path/to/file.gz of=/dev/sdbAnd when I do this, the disk does not show up in places/my computer but it will show up in gparted and Disk Management
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