[opensuse] Kernel updates
Hello I know that this is a topic that gets endless questions. Perhaps because a mistake can be so problematic. Here goes mine: I am running an openSUSE 10.0 system with kernel 2.6.13-15.16-default. This is a rather recent security-fixed kernel. But still the 2.6.13 that came with 10.0. I am looking at trying a more recent kernel. Like kernel-default-2.6.22.5-4.1.i586.rpm, which is available from openSUSE's downloads. A few questions: 1) This contains all the various SUSE patches so it will (or should) fit in like the 2.6.13 kernel did? 2) Will this keep my current kernel? Meaning, can this rpm be removed allowing the original kernel to be used? 3) Are there any issues with glibc when going from 2.6.13 to 2.6.22? Or any other issues? I see that sysfsutils needs updating. I guess this is because of the disk name changes. However, I do not find any sysfsutils for 10.0 when searching openUSUE (http://software.opensuse.org/search). The same is true for irqbalance. -- Roger Oberholtzer OPQ Systems / Ramböll RST Ramböll Sverige AB Kapellgränd 7 P.O. Box 4205 SE-102 65 Stockholm, Sweden Tel: Int +46 8-615 60 20 Fax: Int +46 8-31 42 23 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Roger Oberholtzer wrote:
I know that this is a topic that gets endless questions. Perhaps because a mistake can be so problematic. Here goes mine:
I am running an openSUSE 10.0 system with kernel 2.6.13-15.16-default. This is a rather recent security-fixed kernel. But still the 2.6.13 that came with 10.0.
I am looking at trying a more recent kernel. Like kernel-default-2.6.22.5-4.1.i586.rpm, which is available from openSUSE's downloads.
A few questions:
1) This contains all the various SUSE patches so it will (or should) fit in like the 2.6.13 kernel did?
I am not sure what you mean by "fit in". It will most likely require updates of other packages to work correctly. RPM will probably tell you that it requires later versions of some packages when you try to install the kernel RPM.
2) Will this keep my current kernel? Meaning, can this rpm be removed allowing the original kernel to be used?
The SuSE kernel RPMs will change your bootloader config via the RPM postinstall script. In principle, you can install several kernels in parallel (don't use RPM's -U option). All you have to make sure is that your bootloader config contains correct entries for both kernels (after the installation) so you can decide which one to boot at the grub boot menu. The installation of the new kernel RPM will probably change the default kernel entry in grub's menu.conf and if you're unlucky it will also mess up some old entries (I've seen it happening several times; it will probably also change some links in /boot) - therefore, you should check the bootloader config and /boot before rebooting the system. I am usually compiling and installing new kernels myself, I do not use the RPM packages.
3) Are there any issues with glibc when going from 2.6.13 to 2.6.22? Or any other issues? I see that sysfsutils needs updating. I guess this is because of the disk name changes. However, I do not find any sysfsutils for 10.0 when searching openUSUE (http://software.opensuse.org/search). The same is true for irqbalance.
You not only have to install a new kernel but other software as well (you've already mentioned it), and this software needs to be backward-compatible otherwise it could happen that you're no longer able to run the old kernel (usually, it is). The main problem is that you might have to compile all of these additional packages yourself because nobody offers ready-to-use RPMs for "old" distro versions like SuSE 10.0. And sometimes these software packages require updates of other software packages, and so on. Sometimes it can become quite tricky... My recommendation: think twice whether you really need a new kernel. I am also using 10.0 here and the kernel works fine for me. Do you need some of the new features in the latest kernel? If you only want to have a look at it and play with the latest kernel version, then it might be easier to setup a new openSuSE 10.2 or beta 10.3 on a spare partition (or in a virtual environment) and use it there. Otherwise you have to go through the process of updating some packages on 10.0 - whether this is easy or not depends a bit on your experience. Take care, Th. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Tuesday 28 August 2007 04:21:16 pm Thomas Hertweck wrote:
Roger Oberholtzer wrote:
I know that this is a topic that gets endless questions. Perhaps because a mistake can be so problematic. Here goes mine:
I am running an openSUSE 10.0 system with kernel 2.6.13-15.16-default. This is a rather recent security-fixed kernel. But still the 2.6.13 that came with 10.0.
I am looking at trying a more recent kernel. Like kernel-default-2.6.22.5-4.1.i586.rpm, which is available from openSUSE's downloads.
A few questions:
1) This contains all the various SUSE patches so it will (or should) fit in like the 2.6.13 kernel did?
I am not sure what you mean by "fit in". It will most likely require updates of other packages to work correctly. RPM will probably tell you that it requires later versions of some packages when you try to install the kernel RPM.
2) Will this keep my current kernel? Meaning, can this rpm be removed allowing the original kernel to be used?
The SuSE kernel RPMs will change your bootloader config via the RPM postinstall script. In principle, you can install several kernels in parallel (don't use RPM's -U option). All you have to make sure is that your bootloader config contains correct entries for both kernels (after the installation) so you can decide which one to boot at the grub boot menu. The installation of the new kernel RPM will probably change the default kernel entry in grub's menu.conf and if you're unlucky it will also mess up some old entries (I've seen it happening several times; it will probably also change some links in /boot) - therefore, you should check the bootloader config and /boot before rebooting the system.
With 2.6.22.3-7-default there was problem with missing initrd if system is booted from different partition. Postinstall script was messed up.
I am usually compiling and installing new kernels myself, I do not use the RPM packages.
3) Are there any issues with glibc when going from 2.6.13 to 2.6.22? Or any other issues? I see that sysfsutils needs updating. I guess this is because of the disk name changes. However, I do not find any sysfsutils for 10.0 when searching openUSUE (http://software.opensuse.org/search). The same is true for irqbalance.
You not only have to install a new kernel but other software as well (you've already mentioned it), and this software needs to be backward-compatible otherwise it could happen that you're no longer able to run the old kernel (usually, it is). The main problem is that you might have to compile all of these additional packages yourself because nobody offers ready-to-use RPMs for "old" distro versions like SuSE 10.0. And sometimes these software packages require updates of other software packages, and so on. Sometimes it can become quite tricky...
My recommendation: think twice whether you really need a new kernel. I am also using 10.0 here and the kernel works fine for me. Do you need some of the new features in the latest kernel? If you only want to have a look at it and play with the latest kernel version, then it might be easier to setup a new openSuSE 10.2 or beta 10.3 on a spare partition (or in a virtual environment) and use it there. Otherwise you have to go through the process of updating some packages on 10.0 - whether this is easy or not depends a bit on your experience.
Take care, Th.
I would rather install on another partition Beta 2 or wait few days for Beta3 (Sept. 6th). That way you get all software updated and if it doesn't work well, there is good old 10.0 installation. -- Regards, Rajko. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Tue, 2007-08-28 at 18:28 -0500, Rajko M. wrote:
I would rather install on another partition Beta 2 or wait few days for Beta3 (Sept. 6th). That way you get all software updated and if it doesn't work well, there is good old 10.0 installation.
We are planning our SUSE release support for the coming year. Our primary platform is 10.0. We can't decide if we should go with 10.2 or 10.3. 10.2 we know. 10.3 is unknown. We need to decide/commit in the next month. I think it make be a bit close for choosing 10.3. -- Roger Oberholtzer OPQ Systems / Ramböll RST Ramböll Sverige AB Kapellgränd 7 P.O. Box 4205 SE-102 65 Stockholm, Sweden Tel: Int +46 8-615 60 20 Fax: Int +46 8-31 42 23 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On 8/29/07, Roger Oberholtzer
On Tue, 2007-08-28 at 18:28 -0500, Rajko M. wrote:
I would rather install on another partition Beta 2 or wait few days for Beta3 (Sept. 6th). That way you get all software updated and if it doesn't work well, there is good old 10.0 installation.
We are planning our SUSE release support for the coming year. Our primary platform is 10.0. We can't decide if we should go with 10.2 or 10.3. 10.2 we know. 10.3 is unknown. We need to decide/commit in the next month. I think it make be a bit close for choosing 10.3.
10.2 security support should end Dec. 08 iiuc. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Aug 29 2007 08:09, Roger Oberholtzer wrote:
On Tue, 2007-08-28 at 18:28 -0500, Rajko M. wrote:
I would rather install on another partition Beta 2 or wait few days for Beta3 (Sept. 6th). That way you get all software updated and if it doesn't work well, there is good old 10.0 installation.
We are planning our SUSE release support for the coming year. Our primary platform is 10.0. We can't decide if we should go with 10.2 or 10.3. 10.2 we know. 10.3 is unknown. We need to decide/commit in the next month. I think it make be a bit close for choosing 10.3.
Or you could use 10.2 plus a 3rd-party 2.6.22. Webpin will tell. Jan -- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wed, 2007-08-29 at 12:48 +0200, Jan Engelhardt wrote:
On Aug 29 2007 08:09, Roger Oberholtzer wrote:
On Tue, 2007-08-28 at 18:28 -0500, Rajko M. wrote:
I would rather install on another partition Beta 2 or wait few days for Beta3 (Sept. 6th). That way you get all software updated and if it doesn't work well, there is good old 10.0 installation.
We are planning our SUSE release support for the coming year. Our primary platform is 10.0. We can't decide if we should go with 10.2 or 10.3. 10.2 we know. 10.3 is unknown. We need to decide/commit in the next month. I think it make be a bit close for choosing 10.3.
Or you could use 10.2 plus a 3rd-party 2.6.22. Webpin will tell.
Webpin? I found http://benjiweber.co.uk:8080/webpin/ Is that what you mean? What 3rd party kernel package does all the other things needed to go from 2.6.13 to 2.6.22. Or whatever one introduced big udev changes. -- Roger Oberholtzer OPQ Systems / Ramböll RST Ramböll Sverige AB Kapellgränd 7 P.O. Box 4205 SE-102 65 Stockholm, Sweden Tel: Int +46 8-615 60 20 Fax: Int +46 8-31 42 23 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wed, Aug 29, 2007 at 01:58:51PM +0200, Roger Oberholtzer wrote:
On Wed, 2007-08-29 at 12:48 +0200, Jan Engelhardt wrote:
On Aug 29 2007 08:09, Roger Oberholtzer wrote:
On Tue, 2007-08-28 at 18:28 -0500, Rajko M. wrote:
I would rather install on another partition Beta 2 or wait few days for Beta3 (Sept. 6th). That way you get all software updated and if it doesn't work well, there is good old 10.0 installation.
We are planning our SUSE release support for the coming year. Our primary platform is 10.0. We can't decide if we should go with 10.2 or 10.3. 10.2 we know. 10.3 is unknown. We need to decide/commit in the next month. I think it make be a bit close for choosing 10.3.
Or you could use 10.2 plus a 3rd-party 2.6.22. Webpin will tell.
Webpin? I found http://benjiweber.co.uk:8080/webpin/
Is that what you mean? What 3rd party kernel package does all the other things needed to go from 2.6.13 to 2.6.22. Or whatever one introduced big udev changes.
I guess he meant his own kernel. You can use the 2.6.22 kernel from 10.3 on 10.2. Only thing affected is likely udev/hal. Ciao, -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wed, 2007-08-29 at 14:00 +0200, Marcus Meissner wrote:
You can use the 2.6.22 kernel from 10.3 on 10.2. Only thing affected is likely udev/hal.
Seems like a big 'only thing' :) -- Roger Oberholtzer OPQ Systems / Ramböll RST Ramböll Sverige AB Kapellgränd 7 P.O. Box 4205 SE-102 65 Stockholm, Sweden Tel: Int +46 8-615 60 20 Fax: Int +46 8-31 42 23 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Aug 29 2007 14:00, Marcus Meissner wrote:
Or you could use 10.2 plus a 3rd-party 2.6.22. Webpin will tell.
Webpin? I found http://benjiweber.co.uk:8080/webpin/
Is that what you mean? What 3rd party kernel package does all the other things needed to go from 2.6.13 to 2.6.22. Or whatever one introduced big udev changes.
I guess he meant his own kernel.
You can use the 2.6.22 kernel from 10.3 on 10.2. Only thing affected is likely udev/hal.
Well you can use the 10.3 one on 10.2, but it does not fly very well when you need to compile modules. The kernel rpm is compiled with gcc 4.2 in 10.3, but there is gcc 4.1.2 installed on 10.2. A compiled module is rejected by the kernel because its vermagic is different. Which leaves you with two possibilities: either upgrade gcc (and, as dependencies kick in, the whole distribution), or don't. Jan -- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Tue, 2007-08-28 at 22:21 +0100, Thomas Hertweck wrote:
Roger Oberholtzer wrote:
I know that this is a topic that gets endless questions. Perhaps because a mistake can be so problematic. Here goes mine:
I am running an openSUSE 10.0 system with kernel 2.6.13-15.16-default. This is a rather recent security-fixed kernel. But still the 2.6.13 that came with 10.0.
I am looking at trying a more recent kernel. Like kernel-default-2.6.22.5-4.1.i586.rpm, which is available from openSUSE's downloads.
A few questions:
1) This contains all the various SUSE patches so it will (or should) fit in like the 2.6.13 kernel did?
I am not sure what you mean by "fit in". It will most likely require updates of other packages to work correctly. RPM will probably tell you that it requires later versions of some packages when you try to install the kernel RPM.
I mean things like the boot splash and any other less obvious things that SUSE fiddle with.
2) Will this keep my current kernel? Meaning, can this rpm be removed allowing the original kernel to be used?
The SuSE kernel RPMs will change your bootloader config via the RPM postinstall script. In principle, you can install several kernels in parallel (don't use RPM's -U option). All you have to make sure is that your bootloader config contains correct entries for both kernels (after the installation) so you can decide which one to boot at the grub boot menu. The installation of the new kernel RPM will probably change the default kernel entry in grub's menu.conf and if you're unlucky it will also mess up some old entries (I've seen it happening several times; it will probably also change some links in /boot) - therefore, you should check the bootloader config and /boot before rebooting the system.
I understand all that. It is a 'best case' scenario. If the RPM has no errors. There was another thread here just recently where it was claimed that the parallel install of kernels in fact replaced large parts of the existing kernel. To be sure, as the kernel parts in /lib/modules and /usr/src have different top level directories, I am not sure how this could happen. But a determined RPM could surely find a way.
I am usually compiling and installing new kernels myself, I do not use the RPM packages.
3) Are there any issues with glibc when going from 2.6.13 to 2.6.22? Or any other issues? I see that sysfsutils needs updating. I guess this is because of the disk name changes. However, I do not find any sysfsutils for 10.0 when searching openUSUE (http://software.opensuse.org/search). The same is true for irqbalance.
You not only have to install a new kernel but other software as well (you've already mentioned it), and this software needs to be backward-compatible otherwise it could happen that you're no longer able to run the old kernel (usually, it is). The main problem is that you might have to compile all of these additional packages yourself because nobody offers ready-to-use RPMs for "old" distro versions like SuSE 10.0. And sometimes these software packages require updates of other software packages, and so on. Sometimes it can become quite tricky...
My recommendation: think twice whether you really need a new kernel. I am also using 10.0 here and the kernel works fine for me. Do you need some of the new features in the latest kernel? If you only want to have a look at it and play with the latest kernel version, then it might be easier to setup a new openSuSE 10.2 or beta 10.3 on a spare partition (or in a virtual environment) and use it there. Otherwise you have to go through the process of updating some packages on 10.0 - whether this is easy or not depends a bit on your experience.
I think I will give it a pass. My real reason for this is new features in the firewire video drivers that would drastically improve a component I make. There is a greatly improved user-land DMA interface. I want to try it, but it seems that it requires 2.6.19 or newer. I will next investigate if this is because of the kernel itself, or because that is when the new drivers were released. Maybe it will be easier to get the newer firewire drivers to work with 2.6.13. I should be so lucky... Which kernel introduced the udev changes? Wasn't it after 2.6.19? -- Roger Oberholtzer OPQ Systems / Ramböll RST Ramböll Sverige AB Kapellgränd 7 P.O. Box 4205 SE-102 65 Stockholm, Sweden Tel: Int +46 8-615 60 20 Fax: Int +46 8-31 42 23 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (6)
-
Greg Freemyer -
Jan Engelhardt -
Marcus Meissner -
Rajko M. -
Roger Oberholtzer -
Thomas Hertweck