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Thread: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

  1. #31
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    Question Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Agreed who can do a respin for any Buntu or Lubuntu??

    Originally Posted by mörgæs
    So, summing it up: Status is that a considerable number (but maybe not all) Pentium M CPU's are in fact able to run a new Buntu with PAE kernel.

    Searching for the PAE flag, as is done when installing a standard 12.10 / 13.04, is overly conservative, as it leaves out a number of capable CPU's. Setting a fake PAE flag in the output of cpuinfo solves the problem, as can be seen in fake-pae.conf.

    As of now the solution works as part of an upgrade of 12.04 or when rescuing a failed 12.10 / 13.04 installation.

    How are the chances of making a respin of Lubuntu 13.04 which can be installed right away without upgrading, using scripts or adding PPA's?
    The Answer Please if at all Possible

  2. #32
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Lubuntu-fake-PAE

    Hello all Pentium M users,

    Please visit the preliminary wiki page https://help.ubuntu.com/community/Lubuntu-fake-PAE and tell me what you think. I have deliberately avoided to copy the full instructions to the page, because I want to show that it is preliminary (like a beta release).

    Edit: Now the current detailed instructions also reside at the Ubuntu wiki and are easily available from the page above. There is a new GUI method to install directly from Windows.
    Last edited by sudodus; May 13th, 2013 at 04:35 PM. Reason: update

  3. #33
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Quote Originally Posted by mörgæs View Post
    So, summing it up: Status is that a considerable number (but maybe not all) Pentium M CPU's are in fact able to run a new Buntu with PAE kernel.
    I have a old fujitsu Siemens Amilo Pro 2000, with a Celeron M 340 1.5Ghz (according to the data sheet) (*)

    I'm currently running Lubuntu 12.04 successfully. It runs fine and fast in 768 Mb of RAM
    (OK, editing 60 minute MP3's in Audacity can get a bit slow...)

    Is there any way shy of trying a full kernel install to confirm wether or not my CPU
    will in fact run under fake-PAE?

    BugBear
    (*) To make Joy complete it also has an Intel 855 graphics card, you know, the one that doesn't work right.
    Last edited by bugbear6502; May 21st, 2013 at 03:12 PM.

  4. #34
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Please run
    Code:
    sudo lshw > lshw.txt
    and post lshw.txt in CODE tags.
    Bringing old hardware back to life. About problems due to upgrading.
    Please visit Quick Links -> Unanswered Posts
    Don't use this space for a list of your hardware. It only creates false hits in the search engines.

  5. #35
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Quote Originally Posted by bugbear6502 View Post
    I have a old fujitsu Siemens Amilo Pro 2000, with a Celeron M 340 (according to the data sheet)

    I'm currently running Lubuntu 12.04 successfully. It runs fine and fast in 768 Mb of RAM
    (OK, editing 60 minute MP3's in Audacity can get a bit slow...)

    Is there any way shy of trying a full kernel install to confirm wether or not my CPU
    will in fact run under fake-PAE?

    BugBear

    1. You need to run a pae kernel to test it. One way is to install it (and remove it afterwards) in your present Lubuntu 12.04. I have done that in my IBM Thinkpad T42 with a Pentium M 1.7 GHz.

    It might be easiest to do that with Synaptic. I think you are running the kernel that is managed by the package linux-generic. If you install also the package linux-generic-pae and run

    Code:
    sudo update-grub
    you will get the opportunity to test it. After testing you can select 'Previous Linux versions' in the grub menu and boot linux generic which is non-pae, and you can remove linux-generic-pae if you don't like it or don't need it.

    2. Or if you do not want to touch your Lubuntu 12.04, you can use the 'grub-n-iso' method described at

    https://help.ubuntu.com/community/Lubuntu-fake-PAE

    and boot from the USB boot drive and test it live without installing anything. It will take longer time, but may feel safer.

    Edit: A preliminary alternative is to run this command in your present Lubuntu 12.04

    Code:
    cat /proc/cpuinfo
    and post the output of the command

    Last edited by sudodus; May 21st, 2013 at 03:33 PM.

  6. #36
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Quote Originally Posted by sudodus View Post
    Edit: A preliminary alternative is to run this command in your present Lubuntu 12.04

    Code:
    cat /proc/cpuinfo
    and post the output of the command

    Sorry for the delay - I though this thread had stopped!

    Code:
    cat /proc/cpuinfo
    processor    : 0
    vendor_id    : GenuineIntel
    cpu family    : 6
    model        : 9
    model name    : Intel(R) Celeron(R) M processor         1500MHz
    stepping    : 5
    microcode    : 0x45
    cpu MHz        : 1499.779
    cache size    : 512 KB
    fdiv_bug    : no
    hlt_bug        : no
    f00f_bug    : no
    coma_bug    : no
    fpu        : yes
    fpu_exception    : yes
    cpuid level    : 2
    wp        : yes
    flags        : fpu vme de pse tsc msr mce cx8 mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 tm pbe up bts
    bogomips    : 2999.55
    clflush size    : 64
    cache_alignment    : 64
    address sizes    : 32 bits physical, 32 bits virtual
    power management:
    That doesn't look ideal.

    BugBear

  7. #37
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Fujitsu-Siemens Amilo M7400 after I installed Fake-Pae

    Code:
    cat /proc/cpuinfo
    processor	: 0
    vendor_id	: GenuineIntel
    cpu family	: 6
    model		: 13
    model name	: Intel(R) Pentium(R) M processor 1.50GHz
    stepping	: 6
    microcode	: 0x17
    cpu MHz		: 1500.000
    cache size	: 2048 KB
    fdiv_bug	: no
    hlt_bug		: no
    f00f_bug	: no
    coma_bug	: no
    fpu		: yes
    fpu_exception	: yes
    cpuid level	: 2
    wp		: yes
    flags		: pae fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe bts est tm2
    bogomips	: 2999.60
    clflush size	: 64
    cache_alignment	: 64
    address sizes	: 36 bits physical, 32 bits virtual
    power management:
    Code:
    lsb_release -a
    No LSB modules are available.
    Distributor ID:	Ubuntu
    Description:	Ubuntu 13.04
    Release:	13.04
    Codename:	raring
    Was then able to upgrade to 12.10 and then 13.04.

    Try installing fake-pae and then run the "cat /proc/cpuinfo" and see if the pae flag is now set.

    Good Luck
    Hypertension = Take with a pinch of salt
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  8. #38
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Quote Originally Posted by bugbear6502 View Post
    Sorry for the delay - I though this thread had stopped!

    Code:
    cat /proc/cpuinfo
    processor    : 0
    vendor_id    : GenuineIntel
    cpu family    : 6
    model        : 9
    model name    : Intel(R) Celeron(R) M processor         1500MHz
    stepping    : 5
    microcode    : 0x45
    cpu MHz        : 1499.779
    cache size    : 512 KB
    fdiv_bug    : no
    hlt_bug        : no
    f00f_bug    : no
    coma_bug    : no
    fpu        : yes
    fpu_exception    : yes
    cpuid level    : 2
    wp        : yes
    flags        : fpu vme de pse tsc msr mce cx8 mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 tm pbe up bts
    bogomips    : 2999.55
    clflush size    : 64
    cache_alignment    : 64
    address sizes    : 32 bits physical, 32 bits virtual
    power management:
    That doesn't look ideal.

    BugBear
    I think this CPU is a good candidate for fake-pae to run pae kernels The result is typical with a non-pae kernel for Celeron M and Pentium M with pae capability but no flag. You should get 36 bits physical address size with a pae kernel, and in that case I think it works as it should.

  9. #39
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    Quote Originally Posted by plucky View Post
    Fujitsu-Siemens Amilo M7400 after I installed Fake-Pae

    Code:
    cat /proc/cpuinfo
    processor    : 0
    vendor_id    : GenuineIntel
    cpu family    : 6
    model        : 13
    model name    : Intel(R) Pentium(R) M processor 1.50GHz
    stepping    : 6
    microcode    : 0x17
    cpu MHz        : 1500.000
    cache size    : 2048 KB
    fdiv_bug    : no
    hlt_bug        : no
    f00f_bug    : no
    coma_bug    : no
    fpu        : yes
    fpu_exception    : yes
    cpuid level    : 2
    wp        : yes
    flags        : pae fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe bts est tm2
    bogomips    : 2999.60
    clflush size    : 64
    cache_alignment    : 64
    address sizes    : 36 bits physical, 32 bits virtual
    power management:
    Code:
    lsb_release -a
    No LSB modules are available.
    Distributor ID:    Ubuntu
    Description:    Ubuntu 13.04
    Release:    13.04
    Codename:    raring
    Was then able to upgrade to 12.10 and then 13.04.

    Try installing fake-pae and then run the "cat /proc/cpuinfo" and see if the pae flag is now set.

    Good Luck
    Great, it works for you too

    @plucky, Can I add your result to the list in the wiki page?

    @bugbear, I agree: Try to do the same as plucky

  10. #40
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    Re: Making Buntu >= 12.10 work on a Pentium M-CPU without PAE.

    @plucky, Can I add your result to the list in the wiki page?
    Yup
    Hypertension = Take with a pinch of salt
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