On Tuesday, October 3, 2017 1:38:46 PM CEST Tanstaafl wrote: > On 10/2/2017, 11:52:21 PM, R0b0t1 <r03...@gmail.com> wrote: > > As long as your kernel has the appropriate drivers (i.e. you didn't > > include only the virtualized Xen drivers and left most of the default > > options intact) it should boot under QEMU/KVM or even on a bare metal > > system. > > Hmmm, something else I just remembered when I noticed my production > server is running a 32 bit kernel... > > A long time ago, maybe 6 or 7 years, something weird happened when > Linode had some kind of problem (maybe it was another one of their > maintenance processes, I don't recall), I had a heck of a time getting > it back up, I finally had to do a full rebuild, and distinctly remember > changing to a 32 bit kernel during the process, but never changed back. > > Do I need to do a full system rebuild to change back to the 64 bit kernel?
A 32bit userspace can run with either a 32bit or 64bit kernel. A 64bit userspace can NOT run with a 32bit kernel. As you currently have a 32bit kernel, I am assuming a 32bit userspace. A 64bit kernel should not cause issues. > Also, I haven't played with Linodes 'System Profiles' at all - I was > thinking I'd just create a new profile, add my Gentoo System Image and a > swap image to it, but assign the 64 bit kernel, then if it doesn't work, > switch back. Should I be able to do that without causing any problems to > the current/working profile? I have no experience with Linode. Can't they assist with this? Personally, having a forced change like this would make me reconsider the hosting partner. -- Joost
