Re: [CentOS] Centos 6 Server has no GUI
Hi, Thanks everyone, yes server has no GUI by default, so should have added a install time, now working by adding later Thanks Keith On 11 Jul 2011, at 16:33, Emmanuel Noobadmin wrote: > On 7/11/11, Keith Beeby wrote: >> Hi, >> >> So first daft question with Centos 6 (someone had to be first!) I've setup >> Centos 6 as a Server but as with Centos 5 it used to boot into the GUI but >> v6 doesn't do this, startx etc doesn't seem to work to launch the GUI > > If I'm not mistaken, the "Server" option does not include the GUI so > you'll have to install the GUI group manually as others have > suggested. > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Centos 6 Server has no GUI
Hi, So first daft question with Centos 6 (someone had to be first!) I've setup Centos 6 as a Server but as with Centos 5 it used to boot into the GUI but v6 doesn't do this, startx etc doesn't seem to work to launch the GUI Any suggestions on how I can get this to work? Thank you Keith ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Journal Aborts in VMware ESX (Filesystem Corruption)
Hi, So the 'fix' is applied directly to the host os, is this the correct thing to do? sysctl -w vm.min_free_kbytes = 8192 Keith On 14 Feb 2011, at 10:36, Kwan Lowe wrote: > On Sun, Feb 13, 2011 at 7:00 PM, Adam Tauno Williams > wrote: > em and force a check with "fsck -f" and occasionally find errors. >>> http://communities.vmware.com/message/245983 >>> The setting we used to resolve was vm.min_free_kbytes = 8192 >>> Previous to this we were seeing the error pop up every week or so. >> >> You made this change to the *virtual machine* [not the host OS]? >> >> This thread indicates this was with VMware Workstation and not ESX >> (correct)? > > This was done on the CentOS and RHEL guests on VMWare ESX hosts. > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Journal Aborts in VMware ESX (Filesystem Corruption)
Hi Also seeing this issue with CentOS 5.4 and 5.5 with NFS shared storage, according the the VMware knowledge base article this should have been resolved in v5.1 update??. Does changing the vm.min_free_kbytes value apply CentOS v.5.4 and 5.5 as well to resolve the issue? On 13 Feb 2011, at 14:40, "Kwan Lowe" wrote: > On Sun, Feb 13, 2011 at 9:09 AM, Adam Tauno Williams > wrote: >> I have several CentOS5 hosts in a VMware ESX 3.5.0 226117 environment >> using iSCSI storage. Recently we've begun to experience journal aborts >> resulting in remounted-read-only filesystems as well as other filesystem >> issues - I can unmount a filesystem and force a check with "fsck -f" and >> occasionally find errors. > > http://communities.vmware.com/message/245983 > > The setting we used to resolve was vm.min_free_kbytes = 8192 > > Previous to this we were seeing the error pop up every week or so. > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ESXi, KVM or Xen?
Hi, We went for Esxi, with Vmware essentials, cost about £300 for 3 hosts managed via vcenter, so far so good most vm's are CentOS 5.x Running NFS shared storage on RHEL Regards Keith On 3 Jul 2010, at 04:52, Emmanuel Noobadmin wrote: > Which of these would be the recommended virtualization platform for > mainly CentOS guest on CentOS host for running a virtualized mail > server? From what I've read, objectively it seems that VMWare's still > the way to go although I would had like to go with Xen or KVM just as > a matter of subjective preference. > > > VMWare's offering seems to have the best support and tools, plus > likely the most matured of the options. Also given their market > dominance, unlikely to just up and die in the near future. > > Xen would had been a possible option except Redhat appears to be > focusing on KVM as their virtualization platform of choice to compete > with VMWare and Citrix. So maybe Xen support will be killed shortly. > Plus the modified xen kernel apparently causes conflict with certain > software, at least based on previous incidents where I'd been advised > not to use the CentOS xen kernel if not using xen virtualization. > > > KVM would be ideal since it's opensource and would be supported in > CentOS as far as can be reasonably foreseen. However, looking at > available resources, it seems to have these key disadvantages > > 1. Poorer performance under load. > http://wiki.xensource.com/xenwiki/Open_Topics_For_Discussion?action=AttachFile&do=get&target=Quantitative+Comparison+of+Xen+and+KVM.pdf > This 2008 XenSummit paper indicates that it dies on heavy network load > as well as when there are more than a few VM doing heavy processing at > the same time. But that's two years ago and they weren't using > paravirtual drivers it seems. > > http://vmstudy.blogspot.com/2010/04/network-performance-test-xenkvm-vt-d.html > This blog testing out Xen/KVM pretty recently. While the loads are > not as drastic and neither the difference, it still shows that KVM > does lag behind by about 10%. > > This is a concern since I plan to put storage on the network and the > most heavy load the client has is basically the email server due to > the volume plus inline antivirus and anti-spam scanning to be done on > those emails. Admittedly, they won't be seeing as much emails as say a > webhost but most of their emails come with relatively large > attachments. > > > 2. Security > Some sites point out that KVM VM runs in userspace as threads. So a > compromised guest OS would then give intruder access to the system as > well as other VMs. > > Should I really be concerned or are these worries only for extreme > situations and that KVM is viable for normal production situations? > Are there other things I should be aware of? > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Mounting a Mac OS Extended (Journaled) Hard Drive
Hi I tired plugging in a USB drive that was formatted as Mac OS Extended (Journaled) and it mounted first time Thus it seems there is direct support for HFSPlus with CentOS 5.4 just no hfsplusutils Keith On 22 Mar 2010, at 11:21, Keith Beeby wrote: > Hi, > > When I type lsmod | grep hfsplus > > I get > > hfsplus1104090 > > Thanks for the help > > Keith > > On 22 Mar 2010, at 11:11, James Pearson wrote: > >> Keith Beeby wrote: >>> Hi, >>> >>> Nothing is returned when I type >>> >>>> modprobe hfsplus >> >> That means it has probably loaded it OK - what does the following gives: >> >> lsmod | grep hfsplus >> >> James Pearson >> ___ >> CentOS mailing list >> CentOS@centos.org >> http://lists.centos.org/mailman/listinfo/centos > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Mounting a Mac OS Extended (Journaled) Hard Drive
Hi, When I type lsmod | grep hfsplus I get hfsplus1104090 Thanks for the help Keith On 22 Mar 2010, at 11:11, James Pearson wrote: > Keith Beeby wrote: >> Hi, >> >> Nothing is returned when I type >> >>> modprobe hfsplus > > That means it has probably loaded it OK - what does the following gives: > > lsmod | grep hfsplus > > James Pearson > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Mounting a Mac OS Extended (Journaled) Hard Drive
Hi, Nothing is returned when I type > modprobe hfsplus Regards, Keith On 22 Mar 2010, at 10:38, James Pearson wrote: > Keith Beeby wrote: >> Hi, >> >> I need to migrate about 8Tb of data from a Mac Fibre Channel RAID to >> by LVM Ext3 Linux Fibre Channel RAID. For speed I planned to connect >> both RAID's to my CentOS Server and copy the data directly. >> >> The Mac volume is formatted as Mac OS Extended (Journaled) it seems >> that CentOS 5.4 supports reading HFS volumes but not HFSPlus volumes. >> Is there a way of getting this volume to mount so I can copy of the >> data? I see Fedora has HFSPlus support > > The CentOS 5 kernel does have the hfsplus.ko module ... > > What happens when you type: > > modprobe hfsplus > > James Pearson > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Mounting a Mac OS Extended (Journaled) Hard Drive
Hi, I need to migrate about 8Tb of data from a Mac Fibre Channel RAID to by LVM Ext3 Linux Fibre Channel RAID. For speed I planned to connect both RAID's to my CentOS Server and copy the data directly. The Mac volume is formatted as Mac OS Extended (Journaled) it seems that CentOS 5.4 supports reading HFS volumes but not HFSPlus volumes. Is there a way of getting this volume to mount so I can copy of the data? I see Fedora has HFSPlus support Thanks Keith ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Get VNCserver to only listen on a particular IP address
Hi, Does anyone know if possible to get vncserver to only listen on one particular Ip address? Have two network interfaces (public + private) and just want the vncserver to listen on the private IP address 192.168.10 for example Thanks Keith ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
