Errata : of course, depending of the moment nodeset is issued,
kernel+initrd could be older than root
On 11/07/2022 15:09, Thomas HUMMEL wrote:
On 08/07/2022 22:49, Nathan A Besaw wrote:
Hello, thanks for your answer.
In my experience, this potential critical section is rarely a problem.
In mine too.
In practice, having a (kernel + initrd) / rootimg.tar.gz match does
not usually cause problems,
but there is the possibility of an issue arising.
Well, assuming kernel is always upgraded and never downgraded (though it
may exceptionally not be the case), I guess what could happen is kernel
+ initrd would be newer than root content. I'm not sure what issue this
could cause. I'd consider not being able to switch root a non-issue in
that case as it would not be worse than booting let's say with no
rootimg.tar.gz ready (which is the case if, like me you remove
<rootimgdir:> and not just <rootimgdir:>/rootimg before regenerating the
osimage. Don't know if other issues may arise.
1.) Usually the process of genimage/packimage/nodeset/reboot is being
controlled directly by an administrator,
by taking care to not reboot a node while genimage/packimage/nodeset
is running, any potential problems are avoided.
Yes, that's what I'm doing right now
2.) Rather than rebuilding a single osimage, you can keep your
existing image in place and work on a new image instead.
Once you have completed your testing on the new image, update your
nodes to the new image by doing nodeset/reboot.
Yes but this means new object with different path in its attribute which
should when everything is finished should have their orignial values...
Thanks for your help
--
Thomas HUMMEL
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