similar to: Help recovering from an LVM issue

I've been running into a reproducible problem when using default LVM volume group names to present block devices for virtual machines in KVM, and I'm wondering why it is happening. On dom0 I make a default VolGroup00 for the operating system. I make a second VolGroup01 for logical volumes that will be block devices for virtual systems. In VolGroup01, I make two lv's for one system:

Hi -- I forgot to remove an LVM snapshot after making a backup. Now neither the snapshot nor the original volume are available. How do I recover and get the original volume back online? Currently, the output of lvs looks like LV VG Attr LSize Origin Snap% Move Log Copy% ...... dom5_data VolGroup01 -wi-ao 10.00G

HI there, I am using a Dell PowerEdge 2970 with following specs:2 x AMD Dual Core Opteron processors, 2GHz, 2 MB L2 Cache.8 GB RAM (4 x 2 GB)4 x 146 GB Hard DisksDual Port Gigabit Ethernet NIC10 Gbps PCI EthernetFedora 11 operating system installed.What I want here is Building and Installing Xen 4.3 in Fedora 11. for this I followed the following steps

# lvm pvs /dev/hda: open failed: No medium found Couldn't find device with uuid r5HNPO-l18V-XfJ7-9RXY-AaWC-a4YY-3oL5h7. PV VG Fmt Attr PSize PFree /dev/sda2 VolGroup01 lvm2 a- 232.72G 0 /dev/sdb1 VolGroup00 lvm2 a- 232.81G 32.00M unknown device VolGroup00 lvm2 a- 232.72G 32.00M I just installed the OS, did some tweaks, but did nothing to

Hi guys, I hope you can help me on this issue with kvm/libvirt: using this command to install a kvm virtual machine: virt-install --connect qemu:///system \ --name p3k0401 \ --ram 2048 \ --file //dev/VolGroup01/p3k0401logvol \ --accelerate \ -s 10 \ --nographics \ --hvm \ --location='http://10.1.4.80' I get: Starting install... Retrieving file vmlinuz... | 1.8 MB 00:00

Hi A few days ago we rebooted a server and found that one of the Logical Volumes would not mount at boot, but mounted cleanly manually. So I traced the problem to SE Linux. Specifically the context for /dev/mapper/VolGroup01-lv_ staff is wrong. s -lsahZ /dev/mapper/VolGroup01-* lrwxrwxrwx. root root system_u:object_r:quota_db_t:s0 /dev/mapper/VolGroup01-lv_staff -> ../dm-25 lrwxrwxrwx. root

Hi. I am new to CentOS (Debian user) and I am looking for way how to install CentOS 5 on domU in the way that I have it directly on dom0 LVM partition. If I install it with virtual-manager then the installation program takes that partition as a disk and then creates new partitions on it. I don''t want it that way because I cannot then mount it from dom0. Is there some way how to

Hello, I have successfully used the following command line, but I would like to have some modifications. I would like the virtual disks to show up as disk paritions, rather than entire disks. 1) is there a way to do this via the command line, and 2) are there any real performance differences? virt-install -n daffy -r256 -f /dev/VolGroup01/root_daff -f /dev/ VolGroup01/swap_daff -f

Hello All, I have installed Oracle Cluster Manager on linux x86-64 nit. I am using ocfs file system for quorum file. But I am getting following error. Please see ocfs configureation below. I would appreciate, if someone could help me to understand if I am doing something wrong. Thanks in advance. --------------------------------------------------cm.log file ---------------------------- oracm,

Hi all, How can I boot a XEN domU guest into safe mode? One of our servers was forcefully shutdown, and it seems like one of my VM''s could be corrupt, or something. When I boot it up, I get the following on the console: Creating root device. Mounting root filesystem. kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. Setting up other

I ran into an issue when trying to create VMs in CentOS 5.5 with VLANs. My setup is as follows: -CentOS 5.5 x64 xen kernel -LVM for storage -Kickstart file hosted on apache in /var/www/html/ -VM start file in /etc/xen/ -VLAN100 interface with public IP, VLAN200 interface with private IP My vm start file is as follows: kernel = "/boot/vm-inst/vmlinuz" ramdisk =

I have some problems with copying LV volumes and determining correct size. For instance, if I want to copy an LV from one machine to another. I dd the LV to a file on the other machine, then dd the file to the new LV. That fails, because a few MB are missing. source: LV Name /dev/VolGroup01/LogVol01 LV Size 4.62 GB target: LV Name

I have a system with a large LVM VG partition. I was wondering if there is a way i could share the partition using nbd and have the nbd-client have access the LVM as if it was local. SYSTEM A: /dev/sda3 is a LVM partition and is assigned to VG volgroup1. I want to share /dev/sda3 via nbd-server SYSTEM B: receives A''s /dev/sda3 as /dev/nbd0. I want to access it as VG volgroup1. I am

Hi. I added a disk to a hardware raid 5 array and now i want to expand the LVM physical volume. There are now 4 sas 146GB disks in the server. The virtual disk /dev/sdb from the raid controller has been resized successfully with the server management software osma. [root at srv1 ~]# fdisk -l /dev/sdb Disk /dev/sdb: 438.4 GB, 438489317376 bytes 255 heads, 63 sectors/track, 53309 cylinders

Centos 6.2 system with xfs filesystem. I'm sharing this filesystem using nfs. When I create a 10 gigabyte test file from a nfs client system : dd if=/dev/zero of=10Gtest bs=1M count=10000 10000+0 records in 10000+0 records out 10485760000 bytes (10 GB) copied, 74.827 s, 140 MB/s Output from 'ls -al ; du' during this test : -rw-r--r-- 1 root root 429170688 Jun 8 10:13 10Gtest

Hi All, I have working CentOS xen guest (domU) inside in Debian xen domain (dom0) and here is the domU''s config file <http://fpaste.org/paste/7295>. How could I put the proper syntax inside of domU''s config to instruct the domU to boot the /data/CentOS-5.1-i386-bin-DVD.iso during starting of domU? BTW, I am using xen-3.2-1. Thanks, James

I began an update of one of our servers via yum and, coincidentally or not, I have been getting the following logged into the message file since: messages:Jan 7 15:55:51 inet07 kernel: post_create: setxattr failed, rc=28 (dev=dm-0 ino=280175) Now, this tells me that dev dm-0 is out of space but, what is dm-0? So, can anyone tell me what is happening and why? -- *** E-Mail is

I have an IBM System x 3250 that successfully boots using the standard kernel (2.6.18-8.1.10.el5) but fails to boot with the xen kernel. The kernel appears to fail when it attempts to initialize the driver for the onboard SAS controller (LSI Logic / Symbios Logic SAS1064E PCI-Express Fusion-MPT SAS). Can anyone provide any advice? Here's the relevant info. Please let me know if any other

Hi: Reading Red Hat''s Website and a printed manual of RH184 (Red Hat Virtualization course) I see that RHEL 5 only supports RHEL 4.5 and RHEL 5 as paravirtualized guests. So I asume this is the same situation for CentOS 5, right? What''s the dependency between Xen versions for paravirtualized guests? I ask this questions because I got this experiences: 1. Running CentOS 5 as

perhaps my mind isn't working today. I'm trying to update a system that hasn't been updated in a while which I believe is CentOS 5.2 but it's possible that it's 5.1. I am pretty sure that it has php installed from CentOS-Extras and when I do yum update, it's stumbling on php --> Finished Dependency Resolution Error: Missing Dependency: php-common = 5.1.6-20.el5_2.1 is