I installed the official Ubuntu 18.04.4 LTS 64bit image on my Raspberry Pi 4. On Raspian Buster I used RealVNC server to connect remotely to Raspberry so I want to use the same with Ubuntu but on official RealVNC server page is available .deb package for armhf architecture; how can I user that .deb package on my arm64 system?
I am planning on changing my laptop's CPU in the next few days.
Should I expect anything from Ubuntu? Like a slower/different start for the first time, or should I completely reinstall Ubuntu?
They are both of 64-bit architecture.
Later Edit: After a few weeks, I can proudly say that Linux truly is wonderful! My laptop worked perfectly after changing the CPU.
As a side note, my Windows worked also without anything extra.
I am using 32-bit Ubuntu 14.4 LTS. How can I tell if my computer can run a 64-bit os? I am confused between architecture and CPU op-mode.
An excerpt from /proc/cpuinfo:
$ grep " lm " /proc/cpuinfo
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 nx **lm** constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm dtherm tpr_shadow vnmi flexpriority
Output from lscpu:
kamal@kamal-G31T-M7:~$ lscpu
Architecture: i686
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
Vendor ID: GenuineIntel
CPU family: 6
Model: 23
Stepping: 10
CPU MHz: 2793.084
BogoMIPS: 5586.16
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 2048K
…
Does "Trusty Tahr"(Ubuntu 14.04) supports ia32 booting?
What is the difference between 32-bit and 64-bit Ubuntu? I've heard the 64-bit platform performs better and can detect more than 4GB of RAM. Also, while some apps haven't ported to 64-bit yet, ia32-libs lets a 64-bit machine run them.
If so, why not promote 64-bit over 32-bit?