Re: Using Jessy with an older linux kernel

2015-06-02 Thread Ric Moore

On 06/02/2015 08:42 AM, Eduardo M KALINOWSKI wrote:

On Ter, 02 Jun 2015, Freek Dijkstra wrote:

Is it possible to run Jessy software and packages with an older (3.2 or
even 2.6) Linux kernel?


It depends.


The VPS that my hosting provider offers, uses OpenVZ (or more likely,
it's commercial counterpart, Odin Virtuozzo). OpenVZ provides operating
system-level virtualization (unlike paravirtualization as offered by Xen
or KVM). This means the kernel can't be changed from the guest OS, only
from the hypervisor. So I'm stuck with an older kernel.

I've been successful in upgrading from Wheezy (7) with a Linux 3.2
kernel to Jessy (8) on a test-VPS, and everything seems to work fine.

My production server is still running Squeeze (6.10 with LTS), with a
Linux 2.6.32-042stab092.3 kernel.


This version will probably not work with systemd, but an updated kernel
is available: https://bbs.archlinux.org/viewtopic.php?id=179343 . You
could ask your provider to upgrade the kernel.


Why not just upgrade to wheezy and leave it at that?? Ric



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Re: Using Jessy with an older linux kernel

2015-06-02 Thread tomas
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On Tue, Jun 02, 2015 at 11:21:41AM +0200, Freek Dijkstra wrote:
 Hi,
 
 Is it possible to run Jessy software and packages with an older (3.2 or
 even 2.6) Linux kernel?

I remember dimly that Jessie's systemd requires some kernel feature which
may limit your choice of kernel versions.

Ah, found it: it's the kernel's configuration option CONFIG_FHANDLE. I don't
know off the bat which kernel versions support that, but might be 2.6.39-ish.

Of course, if you stay with SysV init, this doesn't concern you.

The answer would be expect some tweaking if your value of 'older' is old
enough, especially if you go with the (default) systemd.

regards
- -- tomás
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Re: Using Jessy with an older linux kernel

2015-06-02 Thread Darac Marjal
On Tue, Jun 02, 2015 at 12:11:11PM +0200, to...@tuxteam.de wrote:
 On Tue, Jun 02, 2015 at 11:21:41AM +0200, Freek Dijkstra wrote:
  Hi,
  
  Is it possible to run Jessy software and packages with an older (3.2 or
  even 2.6) Linux kernel?
 
 I remember dimly that Jessie's systemd requires some kernel feature which
 may limit your choice of kernel versions.
 
 Ah, found it: it's the kernel's configuration option CONFIG_FHANDLE. I don't
 know off the bat which kernel versions support that, but might be 2.6.39-ish.

Yes, according to https://cateee.net/lkddb/web-lkddb/FHANDLE.html,
CONFIG_FHANDLE appeared in 2.6.39.

 
 Of course, if you stay with SysV init, this doesn't concern you.
 
 The answer would be expect some tweaking if your value of 'older' is old
 enough, especially if you go with the (default) systemd.
 
 regards
 -- tomás
 
 
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Re: Using Jessy with an older linux kernel

2015-06-02 Thread Eduardo M KALINOWSKI

On Ter, 02 Jun 2015, Freek Dijkstra wrote:

Is it possible to run Jessy software and packages with an older (3.2 or
even 2.6) Linux kernel?


It depends.


The VPS that my hosting provider offers, uses OpenVZ (or more likely,
it's commercial counterpart, Odin Virtuozzo). OpenVZ provides operating
system-level virtualization (unlike paravirtualization as offered by Xen
or KVM). This means the kernel can't be changed from the guest OS, only
from the hypervisor. So I'm stuck with an older kernel.

I've been successful in upgrading from Wheezy (7) with a Linux 3.2
kernel to Jessy (8) on a test-VPS, and everything seems to work fine.

My production server is still running Squeeze (6.10 with LTS), with a
Linux 2.6.32-042stab092.3 kernel.


This version will probably not work with systemd, but an updated  
kernel is available: https://bbs.archlinux.org/viewtopic.php?id=179343  
. You could ask your provider to upgrade the kernel.


--
Eduardo M KALINOWSKI
edua...@kalinowski.com.br



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