Eu tenho um computador que tinha um sistema operacional de 32 bits quando comprei, achei que era de 32 bits. Então instalei o debian-7 de 32 bits. Eu atualizei o kernel para pae e depois para 64 bits. Agora é um kernel de 64 bits e 32 bits de usuário.
Estou tentando atualizar para o debian-8 64bit, fazendo uma nova instalação.
No entanto, quando eu digo ao firmware / BIOS do computador para inicializar a partir do CD, ele não está reconhecendo o sistema operacional no CD. Ele diz que nenhum sistema operacional foi encontrado. É possível que a BIOS esteja programada para não permitir uma inicialização de 64 bits? Se sim, como posso instalar o SO?
computador: Acer aspire 5228
lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 23
Stepping: 10
CPU MHz: 1795.640
BogoMIPS: 3590.97
L1d cache: 32K
L1i cache: 32K
L2 cache: 1024K
NUMA node0 CPU(s): 0,1
cat /proc/cpuinfo
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Celeron(R) Dual-Core CPU T3000 @ 1.80GHz
stepping : 10
microcode : 0xa0b
cpu MHz : 1795.640
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm dtherm
bogomips : 3590.97
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
Informações do sistema operacional:
uname -a
Linux richard-laptop 3.2.0-4-amd64 #1 SMP Debian 3.2.81-1 x86_64 GNU/Linux
cat /etc/debian_version
7.11
aptitude show grub-pc
Package: grub-pc
State: installed
Automatically installed: no
Multi-Arch: foreign
Version: 1.99-27+deb7u3
Priority: optional
Section: admin
Maintainer: GRUB Maintainers <[email protected]>
Architecture: i386
Uncompressed Size: 488 k
Depends: debconf (>= 0.5) | debconf-2.0, grub-common, grub2-common (= 1.99-27+deb7u3), grub-pc-bin (=
1.99-27+deb7u3), ucf
Conflicts: grub (< 0.97-54), grub-coreboot, grub-efi-amd64, grub-efi-ia32, grub-ieee1275, grub-legacy
Replaces: grub, grub-common (<= 1.97~beta2-1), grub-coreboot, grub-efi-amd64, grub-efi-ia32, grub-ieee1275,
grub-legacy, grub2 (< 1.99-27+deb7u3)
Description: GRand Unified Bootloader, version 2 (PC/BIOS version)
GRUB is a portable, powerful bootloader. This version of GRUB is based on a cleaner design than its
predecessors, and provides the following new features:
* Scripting in grub.cfg using BASH-like syntax.
* Support for modern partition maps such as GPT.
* Modular generation of grub.cfg via update-grub. Packages providing GRUB add-ons can plug in their own
script rules and trigger updates by invoking update-grub2.
* VESA-based graphical mode with background image support and complete 24-bit color set.
* Support for extended charsets. Users can write UTF-8 text to their menu entries.
This package contains a version of GRUB that has been built for use with traditional PC/BIOS architecture.
Homepage: http://www.gnu.org/software/grub/
Informação do CD: foi obtida na capa de uma revista e foi usada para instalar meu outro laptop. (Adicionei algumas novas linhas ao abaixo, para tornar essa saída mais legível):
file -Lsk /dev/cdrom
/dev/cdrom: sticky # ISO 9660 CD-ROM filesystem data 'LXFDVD199 '
(bootable)2- x86 boot sector; GRand Unified Bootloader,
stage1 version 0x79, boot drive 0xbb,
stage2 address 0x8e70, 1st sector stage2 0xb8db31c3, stage2 segment 0x201;
partition 1: ID=0xee, starthead 0, startsector 1, 9003999 sectors, extended partition table (last)1, code offset 0x52