All Questions
Tagged with operating-systems linux
253
questions
0
votes
0
answers
118
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rhel + disk util is very high , what is the impact for long term
we have backup server with rhel version 7.2
server is VM machine , and OS disk is VMDK disk
disk used space is around - 50% , and from smartctl we not see problem
as we can see from follwing details
...
- 871
0
votes
1
answer
2k
views
Why does a computer slow down when left running for a long time without restarting?
I am currently using Windows and see that I need to reboot my PC time to time, without which it feels slow. That is if I keep running it for 4 - 8 hours without restarting, it'll start to slow down ...
- 75.7k
0
votes
3
answers
317
views
Is it possible to boot a floppy disk driven operating system using a usb device
I am very enthusiast about operating systems and I am following a course related. So as a project I was assigned to implement a simple operating system.
They provided me the simple operating system ...
- 705
52
votes
2
answers
100k
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cat /proc/meminfo what do all those numbers mean
In reading the man page on the free command in Linux. I found that is gets its info from /proc/meminfo.
I understand a few of the entries, like MemTotal and MemFree. What do the rest mean.
cat /...
- 413
2
votes
1
answer
3k
views
Change tty/pts ssh session between Unix client & server
Hello everybody i ask if is possible switch between /dev/pts/1 and dev/tty/1.
I work in env where the connection is bad.
If loss ssh connection i need to restore ssh's session in the same state that ...
- 490
0
votes
1
answer
107
views
Moving OSs from 1TB to 2TB
I have a 1TB nvme drive with windows and linux installed. The partitions look like this:
partitions
Now I would like to move both these operating systems to a 2TB nvme. How do I do this without ...
- 56
2
votes
0
answers
162
views
are page tables under utilized in x86 systems
I was recently looking at the page table architecture in x86 and x86-32 machines.
x86-32 paging architecture:
x86-64 paging architecture:
In x86 for example, we use 10 bits as offset into the page ...
- 1,764
2
votes
0
answers
94
views
On a hard realtime OS, what happens if a process takes too long? Would programs just crash or something else?
I've read that a realtime scheduler won't wait on a process to complete certain tasks if they take too long in order to maintain realtime capability.
The way I understand it is an OS will wait on ...
- 56.1k
0
votes
0
answers
179
views
Install Multiple OS on USB Drive
I would like to install multiple OS on USB Drive with as less partitions as possible.
One way I thought of doing that is via Ventoy. I haven't tested this approach but it goes like this.
Install OS ...
- 113
-3
votes
1
answer
75
views
Is there something that would allow a Windows application source code to be recompiled to Linux? [closed]
Think WINE but recompilation. Think Cygwin but the other way around.
If not, what are the challenges getting in the way?
Edit: I'm looking for something that works like WINE but can get me better ...
- 62.4k
0
votes
2
answers
382
views
Can Windows (or some other OS) Detect that some other OS was running between reboots?
Let us say we have a Dual Boot Machine. Or we have a Linux LiveCD in the CD Drive.
We are running Windows & select reboot or Hibernate.
The Machine exits the OS and goes back to the Booting ...
- 465k
0
votes
0
answers
3k
views
How can I fix this “The following signatures were invalid…” error in Kali Linux?
┌──(kali㉿kali)-[~]
└─$ sudo apt-get update
[sudo] password for kali:
Hit:1 http://kali.download/kali kali-rolling InRelease
Get:2 http://deb.i2p2.no unstable InRelease [19.7 kB]
Err:2 http://...
- 56.1k
0
votes
1
answer
48
views
How is a processing core told to execute something else?
I have some questions about scheduling/multitasking in computer operating systems. If the details are platform-specific, I'm talking about Linux running on x86.
I understand that the scheduler is the ...
- 93.8k
5
votes
1
answer
3k
views
How do I natively run linux on the Chromebook 15 (CB3-532)?
After experimenting with ChromeOS and Crouton, I made the decision to transition my Acer Chromebook 15 (CB3-532) to run just Linux.
During my research I realized that I would need to:
Enable ...
- 156
0
votes
0
answers
264
views
Swapping with Paging and Swappiness (Linux)
In Abraham Silberschatz's Book, Greg Gagne, Peter B. Galvin - Operating System Concepts (2018) says:
Standard swapping was used in traditional UNIX systems, but it is
generally no longer used in ...
- 1