Results 1 to 2 of 2

Thread: 32 bit or 64 bit

  1. #1
    Member registered user
    Join Date
    Dec 2006
    Posts
    49

    32 bit or 64 bit

    I have a 64-bit processor on a Dell 9360 machine.
    If I boot into Knoppix 8.2.0 Live from a portable drive and run simple queries as follows I get:
    $ lscpu
    Architecture: x86_64
    CPU op-mode(s): 32 bit,64 bit
    Flags: ... lm ...
    $ lshw -C processor | grep width
    width: 64 bits
    $ grep flags /proc/cpuinfo | grep " lm "
    Flags: ... lm ...

    which all confirm the 64-bit architecture. BUT the response
    CPU op-mode(s): 32 bit,64 bit
    apparently indicates that I am running a 64-bit-capable machine in 32-bit-mode.
    Yes? - is this a true interpretation?
    My /boot/isolinux/isolinux.cfg file contains the lines (omitting redundant qualifiers for ease of reading)
    DEFAULT fergus
    LABEL fergus
    KERNEL ifcpu64.c32
    APPEND knoppix64 -- knoppix
    APPEND knoppix64
    LABEL knoppix
    KERNEL linux
    APPEND initrd=minirt.gz
    LABEL knoppix64
    KERNEL linux64
    APPEND initrd=minirt.gz

    which I hoped meant "if 64-bit machine use 64-bit OS; if 32-bit machine use 32-bit OS" but apparently not.
    How can I tweak the isolinux.cfg file to behave as required one line up?
    Thank you!
    PS1 I have to admit (I have only just noticed) that the file ifcpu64.c32 referred to above is very suggestive of an instruction "if 64-bit machine use 32-bit OS". Is that what it achieves, and the cause of the mismatch described?
    PS2 I use this ifcpu file from the Knoppix 7.4.2 provision. I find the Knoppix 8.2.0 version stops Knoppix stone dead before it even starts. It simply does not work, at all. Anybody else?

  2. #2
    Junior Member
    Join Date
    Jun 2012
    Posts
    24
    Check out the Cheat Codes for optional bootup switches.

    http://knoppix.net/wiki/Cheat_Codes

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Dell Precision R3930 Rackmount Workstation | Core I9-9900 | 32GB 2666 | RTX 4000 picture

Dell Precision R3930 Rackmount Workstation | Core I9-9900 | 32GB 2666 | RTX 4000

$1499.99



Dell Desktop Computer 16GB RAM 512GB SSD Intel Core i5 8th Gen. Windows 11 Pro picture

Dell Desktop Computer 16GB RAM 512GB SSD Intel Core i5 8th Gen. Windows 11 Pro

$275.60



New HP S01 Slim Desktop PC 10th Gen Core i3-10105 3.70GHz 8GB 256GB SSD Win 11 picture

New HP S01 Slim Desktop PC 10th Gen Core i3-10105 3.70GHz 8GB 256GB SSD Win 11

$169.99



Dell Precision 3420 SFF Intel Core i5-6500 8GB RAM 256GB SSD WIN 11 picture

Dell Precision 3420 SFF Intel Core i5-6500 8GB RAM 256GB SSD WIN 11

$75.00



Intel - Core i7-13700K 13th Gen 16 cores 8 P-cores + 8 E-cores 30M Cache, 3.4... picture

Intel - Core i7-13700K 13th Gen 16 cores 8 P-cores + 8 E-cores 30M Cache, 3.4...

$343.99



Intel - Core i7-12700K Desktop Processor 12 (8P+4E) Cores up to 5.0 GHz Unloc... picture

Intel - Core i7-12700K Desktop Processor 12 (8P+4E) Cores up to 5.0 GHz Unloc...

$246.99



Intel - Core i5-13600K 13th Gen 14 cores 6 P-cores + 8 E-cores 24M Cache, 3.5... picture

Intel - Core i5-13600K 13th Gen 14 cores 6 P-cores + 8 E-cores 24M Cache, 3.5...

$272.99



Intel - Core i5-13500 13th Gen 14 cores 6 P-cores + 8 E-cores, 24MB Cache, 2.... picture

Intel - Core i5-13500 13th Gen 14 cores 6 P-cores + 8 E-cores, 24MB Cache, 2....

$199.99



Dell 9020 Optiplex Micro-Intel Core i5 - 1TB SSD 8GB RAM Window 11 - Very Good picture

Dell 9020 Optiplex Micro-Intel Core i5 - 1TB SSD 8GB RAM Window 11 - Very Good

$129.49



SGIN Laptop 8GB RAM 256GB SSD 15.6

SGIN Laptop 8GB RAM 256GB SSD 15.6" Intel Celeron Quad-Core 2.8GHz HD 1080P

$171.99