Re: [Vserver] Question about rebuilding an older Debian system with vservers
On Mon, Feb 26, 2007 at 12:02:44AM +0100, Guenther Fuchs wrote: > Hi there, > > on Sunday, February 25, 2007 at 11:41:47 PM there was posted: > > KK> http://linux-vserver.org for installation on Fedora but have not > KK> seen anything about RH Ent Linux and how you would install it. > > RHEL is using a really old kernel (2.6.9) which is not supported by > recent Linux-VServer patches. Therefore you would need to find some- > one to donwgrade the patches back to that kernel - and also use the > RHEL patches to the kernel as well. > > Therefore the "official" recommended way for RHEL is to use a vanilla > kernel or instead use e.g. CentOS installation - wich certainly breaks > the "certification" of RHEL. > > That means: At the moment there is NO way to have a recent Linux- > VServer system using RHEL except then getting deep into coding and > patching our RHEL yourself. well, which IMHO voids the 'certification' anyway unless you _are_ RedHat and the new kernel will become the official one :) > >> why bother with a debian install, when you > >> are used to RedHat? just install Fedora or > >> Mandriva on the host (with a Linux-VServer > >> kernel) and restore the guests there, they > >> will work regardless of the host distro ... > > Main recommendation goes finally to what Herbert recommended though - > I'm for example using Fedora Core 6 on two AMD64 machines (1x Opteron > Dual-Core, 1x Athlon XP) without any problems. Remember: Main "work" > for the host is > a) supplying the kernel including the network > b) supplying the tools for the guest handling > > That can be (quite secure) done with nearly any available kernel - so > if no special reason is for RHEL (e.g. certification) I also would > recommend you to use e.g. Fedora, which is well spread, tested and in > use (if you want a near RedHat system). that is correct, fedora seems well maintained in this regard ... best, Herbert > -- > regards 'n greez, > > Guenther Fuchs > (aka "muh" and "powerfox") > > ___ > Vserver mailing list > Vserver@list.linux-vserver.org > http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Question about rebuilding an older Debian system with vservers
Thanks, Guenther. I sort of thought that would be the answer, since a lot of what turned up in my google search involved people hacking things to get a kernel patch for RHEL. I'll look into the Fedora idea that both you and Herbert suggest. I think for this case, I'll just install a Debian root OS. I need to get more familiar with it anyway because we have a lot of machines running it and since I inherited them all, it will take some time before I have bandwidth to migrate them to anything else. Appreciate the help today. Thank you both. Kathy > RHEL is using a really old kernel (2.6.9) which is not supported by > recent Linux-VServer patches. Therefore you would need to find some- > one to donwgrade the patches back to that kernel - and also use the > RHEL patches to the kernel as well. > ... ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Question about rebuilding an older Debian system with vservers
Hi there, on Sunday, February 25, 2007 at 11:41:47 PM there was posted: KK> http://linux-vserver.org for installation on Fedora but have not KK> seen anything about RH Ent Linux and how you would install it. RHEL is using a really old kernel (2.6.9) which is not supported by recent Linux-VServer patches. Therefore you would need to find some- one to donwgrade the patches back to that kernel - and also use the RHEL patches to the kernel as well. Therefore the "official" recommended way for RHEL is to use a vanilla kernel or instead use e.g. CentOS installation - wich certainly breaks the "certification" of RHEL. That means: At the moment there is NO way to have a recent Linux- VServer system using RHEL except then getting deep into coding and patching our RHEL yourself. >> why bother with a debian install, when you >> are used to RedHat? just install Fedora or >> Mandriva on the host (with a Linux-VServer >> kernel) and restore the guests there, they >> will work regardless of the host distro ... Main recommendation goes finally to what Herbert recommended though - I'm for example using Fedora Core 6 on two AMD64 machines (1x Opteron Dual-Core, 1x Athlon XP) without any problems. Remember: Main "work" for the host is a) supplying the kernel including the network b) supplying the tools for the guest handling That can be (quite secure) done with nearly any available kernel - so if no special reason is for RHEL (e.g. certification) I also would recommend you to use e.g. Fedora, which is well spread, tested and in use (if you want a near RedHat system). -- regards 'n greez, Guenther Fuchs (aka "muh" and "powerfox") ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Question about rebuilding an older Debian system with vservers
Hi Herbert -- Thanks for the reply. You're making me feel more comfy about this whole thing. :) Interesting point about putting RedHat on there for the host OS. We're starting to move all of our corporate servers that are Debian to a supported operating system (i.e. either by Dell, RedHat, or Novell), like RedHat Enterprise Linux or SuSE. I see documentation on http://linux-vserver.org for installation on Fedora but have not seen anything about RH Ent Linux and how you would install it. For now, I'm just trying to get through a somewhat emergency situation where I can quickly make a reasonable clone of what I have in case the file system gets corrupted on my prod system in my next attempt to fixing the hardware issue (RAID5 array in degraded state due to bad disk and previous attempt to bring back to optimal with replacement disk resulted in Debian Reiser filesystem screaming "inconsistent filesystem"long story). > why bother with a debian install, when you > are used to RedHat? just install Fedora or > Mandriva on the host (with a Linux-VServer > kernel) and restore the guests there, they > will work regardless of the host distro ... > > HTH, > Herbert > ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Question about rebuilding an older Debian system with vservers
On Sun, Feb 25, 2007 at 12:14:58PM -0800, Kathy Kost wrote: > > I have a server that I have inherited from someone who left our > company and he built it with Debian 3.1 on the root server and all > guest vservers. The kernel used was 2.6.8-vserver. I'm going to ask > some dumb questions here because I'm mostly familiar with RedHat and > Solaris, more than Debian. I have never personally installed a Debian > vserver system from scratch. I want to build a duplicate of this > system because the original system is having hardware problems and I > need to recreate the system if it dies. > My question is this: If I install the latest release of Debian -- > looks like 3.1r5 and use the latest vserver kernel (can't remember > what I saw it at last), will the guests that were built on Deb 3.1 > and 2.6.8-vserver kernel work okay? yes, definitely, at least as long as you keep the legacy interfaces enabled, but with minor changes to the config, even without any of the legacy stuff > How I was hoping it would go is like this: I install the new base > server with 3.1r5/newer vserver kernel based on vserver install > documentation, and then restore /etc/vserver.conf, /etc/vservers and > /home/vservers (where the guests reside). I'm worried that the guests > were built on an older based kernel and it might cause problems? why bother with a debian install, when you are used to RedHat? just install Fedora or Mandriva on the host (with a Linux-VServer kernel) and restore the guests there, they will work regardless of the host distro ... > And also that my assumptions for restoring such a system are too > simplistic. nope, just make sure that the numeric ids (uid/gid) stay the same, and do not get messed up in the copy/restore process ... > Thanks for any pointers. HTH, Herbert > Kathy > > ___ > Vserver mailing list > Vserver@list.linux-vserver.org > http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] Question about rebuilding an older Debian system with vservers
I have a server that I have inherited from someone who left our company and he built it with Debian 3.1 on the root server and all guest vservers. The kernel used was 2.6.8-vserver. I'm going to ask some dumb questions here because I'm mostly familiar with RedHat and Solaris, more than Debian. I have never personally installed a Debian vserver system from scratch. I want to build a duplicate of this system because the original system is having hardware problems and I need to recreate the system if it dies. My question is this: If I install the latest release of Debian -- looks like 3.1r5 and use the latest vserver kernel (can't remember what I saw it at last), will the guests that were built on Deb 3.1 and 2.6.8-vserver kernel work okay? How I was hoping it would go is like this: I install the new base server with 3.1r5/newer vserver kernel based on vserver install documentation, and then restore /etc/vserver.conf, /etc/vservers and /home/vservers (where the guests reside). I'm worried that the guests were built on an older based kernel and it might cause problems? And also that my assumptions for restoring such a system are too simplistic. Thanks for any pointers. Kathy ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
