Den 2014-08-22 18:24, Israel skrev: > > On 08/22/2014 11:16 AM, Nio Wiklund wrote: >> >>> I have been staring at CmakeLists trying to force Precise to FindFLTK so >>> my brain is a bit jelly right now :) >>> >>> I think the main issue is the PAE flag. I did mean the opposite. >>> Installing on non-pae for the older laptops that don't set the flag in >>> the processor. Like 12.04 Lubuntu offering a non-pae installation option. >>> >>> Can this be done in OBI by using a pae kernel on a non pae? >>> as in, the very last section (C) on this page... >>> https://help.ubuntu.com/community/PAE >> Yes, this was the fundament for my work with Lubuntu-fake-pae >> >> https://help.ubuntu.com/community/Lubuntu-fake-PAE >> >> The best alternative for 12.04 LTS is to deliver it with fake-PAE. >> Otherwise Pentium M and Celeron M will boot from grub, but not >> 'dist-upgrade' to new pae kernels. It is also possible to deliver it >> with an old non-pae kernel. Lubuntu and Xubuntu 12.04 came with non-pae >> kernels originally. > Ok, I understand you. > I think I need to find out exactly what Ali is intending for this release
Yes, check that with Ali >>> So does the whole non-pae issue arise from a flag that a processor >>> doesn't set, even if it is PAE. >> Yes, almost. (There are also some rare CPUs with similar 'horsepower' as >> old Pentium M CPUs that are claimed to lack PAE capability, Transmeta >> Crusoe and some old Via processors.) > Ok, so we *may* need the older Kernel or Phill's Yes, we *may* need the older Kernel or Phill's >>> I am trying to understand whether or not we can install trusty on a >>> non-pae flag computer with a normal (in the repos) kernel, or whether we >>> need to use Precise to do precisely this :) >> Yes, if PAE capable but without PAE flag, you can use the boot option >> forcepae in Trusty. See >> >> https://wiki.ubuntu.com/Lubuntu/AdvancedMethods#Pentium_M_and_Celeron_M >> >>> OR, is it possible to use phillw's kernel and have it stay up-to-date in >>> trusty? Or is it needed only for the Live image? >> It is possible to have Phill's non-pae kernel. I think he intended to >> keep it up to date, but you have to ask him directly how and for how >> long he manages to do that. >> >> The PAE live image can also boot with the boot option forcepae in >> Trusty, but not in Precise. >> > Ok, I will try to find out exactly what Ali intends, and then if we need > phillw's kernel we can go that route. Yes >>> I hope I am more clear, but it is hard to mush my thoughts back together >>> :) And I don't entirely understand the pae issue. >> Ask again, I'm glad to help you. I think I understand the PAE issue, but >> may not explain it well enough. >> >> (I think that the main problem is that the Ubuntu development team >> forgot about Pentium M and Celeron M, when they decided to skip the >> non-pae kernel. And when the decision was there nobody wanted to reverse >> it. I also think forcepae is a good work-around, and I would be happy, >> if it could be back-ported from Trusty to Precise, because some drivers >> for old hardware were dropped between Precise and Trusty.) > > Are these drivers, simply kernel modules? > Couldn't we sudo modprobe whatever > or are they no longer available at all? I don't think precise drivers work with trusty, but I don't know the details about that. Ask someone who understands kernels and drivers better than I. > Thanks for the explanations :) You are welcome :-) >>>> I can also run Phill's non-pae kernel in my Toshiba with Intel i5 (which >>>> has 64-bit architecture). I have made installations with two kernels, >>>> the default 'generic pae' and the non-pae kernel. Both work, but the >>>> non-pae kernel cannot use RAM above 2 GB as efficiently as PAE (of >>>> course). But UEFI demands 64-bit systems. >>>> >>>> b. Yes, you get it by default in Ubuntu based systems. If you have only >>>> a non-pae kernel you can install the current PAE kernel with >>>> >>>> sudo apt-get install linux-generic-pae >>>> probably even >>>> >>>> sudo apt-get install linux-generic >>>> >>>> will install it. Try it yourself :-) >>>> >>>> If I remember correctly, it is one of the menu alternatives in >>>> >>>> http://phillw.net/isos/linux-tools/9w/obi_Trusty-nonpae-txt5-9w.iso >>>> >>>> Best regards >>>> Nio -- Mailing list: https://launchpad.net/~torios Post to : torios@lists.launchpad.net Unsubscribe : https://launchpad.net/~torios More help : https://help.launchpad.net/ListHelp
