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Operating Systems

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Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

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hi experts,

 I'm setting up a server 2016 windows and it has a hard drive of 4TB and 32GB of ram, what is the recommended size for the OS partition?
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How to Use the Help Bell
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How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

Hi, I have a MacBook Air 13-inch Early 20151.6Ghz Intel Core i5, running  OS 10.13.
There was an intermittent problem whereby sound would stop working, but rebooting solved it. Now, rebooting doesn't solve.  

Symptoms
In System Preferences > Sound, there are no sound output devices showing up.  
At reboot, system doesn't chime before OSX starts up.  
Sound volume is greyed out.

What I've tried

Plug in headphones - no effect - no output device, no volume
Check headphone jack for debris, blow out with air duster
Reset PRAM, Reset SMC
Checked for audio booster apps like Boom - there are none

I suspect that the absence of that chime when the machine starts up means that it's a hardware issue.  Has anyone any ideas?
0
I have a simple (old) Punch Time Clock device on the network and having issue to poll the clock - experiencing all kinds of network disconnects etc. while connecting from Virtual Machine.

I suspect that it has to do with the fact that the network adapter used by this VM is part of a TEAM (NIC teaming enabled - TEAM is made of 3x 1GB NICs).

My Host OS is Windows Server 2012 R2.

I wonder if there is anything that can be tweaked on the advanced features of the network adapder assigned to VM that could make it more reliable (network speed is not a concern for this particular VM)
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2
Hi All,

can you please help me to know more about OS command injection and how to prevent it in asp.net web applications.

Many thanks
0
Greetings,

I have a disk full condition which caused a V7R1 Power5 to shut down...
Need to know the procedure for IPLing to delete some stuff...

Someone said to IPL from the A side...
Is that true...?
Is that A Normal or A Manual...
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Dear expert,

I have taken over a server from someone who is no longer with the company.  The server is not yet in production and I an entrusted to get it up and running and into production.  In going through the motions and checking out various things to see where the server stands, I came across this ... whenever I click on something in IE, I get the message "Please click here if you are not redirected within a few seconds"?

The server is running Windows 2016 Essentials as the OS.  The IE version is 11.

I have researched this issue before sending in a question.  I have tried the following:

1. I have reset IE (restarted computer as instructed).
2. I have reset IE -and- clicked on delete personal settings (restarted computer as instructed).

So far nothing I do seems to work.

I was attempting to download Chrome when I this message came up.  Also, if you don't mind, in trying to download Chrome, a second issue occurs.  When I get to the download chrome website, I click on 'Download Chrome' and nothing happens.  I can scroll up and down the page, but when I click on the 'Download Chrome' link, nothing happens.  My guess is that these 2 issues are related somehow with IE's security settings.

Any assistance you can give on these 2 issues is appreciated.


Thanks,
sla0610
0
My OS is win 10 Prof 64 bit and I downloaded the Bitcoins Core software version 15.0.1  64 bit, I created a wallet, and then bought some test bitcoins from a atm machine.  When I returned I opened the software and it synced with the network, and according to the forum it takes a long time and downloads a lot of data.  But how long is long?  the software shows the : Estimated time left until synced : 2 weeks.  
Am I doing anything wrong to cause this, and how do I recover and is there a faster way.  Thank u for your advise. Regards
0
Cannot activate Windows license and also get a profile error when logging into server using a login account that has been added to a security group and that security group is nested in the local administrators group. Please see attached PDF for details.
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I have a Dell Precision T7600 with a H310 RAID Adapter. there are two Virtual Disks. One for the OS (Ubuntu) and another for data. Two months ago I replaced the data volume with four new Western Digital 5TB drives in a RAID 10. Suddenly, this volume is unavailable. When I go into the RAID Controller and look at Physical Disks all disks are present but all four WD disk show as Foreign. Under Virtual Disks, the data volume shows only two of the four disks. One says Ready, the second says Rebuild and the other are Missing.

It seems highly unlikely that two disks failed simultaneously. There haven't been any electrical anomalies and all the fans and temp sensors in diagnostics are normal. I re-seated all of the drives and RAID Controller connections and no change. I tried Importing, which fails.

The data on this volume is really important. What would be the best way to recover this RAID?

Thanks in advance
0
Concerto Cloud for Software Providers & ISVs
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Concerto Cloud for Software Providers & ISVs

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The port virtualization technology may be integrated to any cloud OS. A user may work with remote or local USB devices without any limits.
0
Hi,

I bought an Acer 8th Gen core i5 8250u based laptop model A515-51G.

Does the laptop support M.2 SSD in the second SATA slot.

Can I have a configuration where I can install the OS from the SSD SATA slot and also have the 1 TB hard disk that comes with the laptop for storing data.

Does this model support dual SATA configuration?

Does this laptop support booting from the M.2 SSD SATA slot with the default hard disk as the data disk?

What is the size and specs. of the SSD that I can install in the second SATA slot and whether I can make it bootable?

Please reply asap for this question.

Thanks for your support.

Warm Regards,
Sriram.
0
We have a network where there is a shared folder which the other putes use.  In each puter I use Map Network Drive so that they can find the shared folder with the files in it.

Puter holding all the  shared files is running 10.  The putters that map to it are running 7 and one is running Vista.


It has worked perfectly for years  ..  Now I have to redo Map Network drive ever other day or so.  I don't know why . Than it works fine again.  They seem to loose the network.

Anyone know why this could be happening??

Thank You

Dan
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I have a 2016 21.5" Apple iMAC with a Fusion Drive that came with OS Sierra installed as the default OS when I purchased it in December 2016. I upgraded to High Sierra and would like to go back to Sierra. I have completed a few "Clean Installs" and have a OS Sierra Thumb Drive however after going through the process for a Clean Installation, the Sierra Thumb drive is not recognised or visible and when I reinstall the OS it goes back to High Sierra again. I do have a time Machine Backup and this option does take me back to Sierra but I want to go back via Clean installation - not via backup.
I have also tried to do the downgrade on my 2016 MacBook Pro with a SSD Drive and this does not work either.
0
We use office365 for our company email.  About 90 total accounts.  In the last two weeks, 4 different email addresses have been hacked and sent out company wide emails with malware attached.  Each time I have the user change their password and I reinstall the OS on their computer (standard policy anytime anyone gets a virus).  It happened again today for the 5th time now in a short amount of time.  I feel like this is not coincidence.  Any thoughts on what I can do?
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Which command boots a Nova instance?

a. Nova-Instance
b. Nova activation
c. Nova boot
d. Nova -instance boot
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e.g.:

 brandon
   smich
marl
      siracusa
   sabine

Open in new window


output
brandon
smich
marl
siracusa
sabine

Open in new window


i use Word List Updater 2.7   for windows os
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What’s the first thing you install—or uninstall—on a new system?
The first thing I install on a new PC system (other than OS & drivers) is usually a tie between the Chrome browser and Blizzard's Battle.net client, closely followed by Adobe Lightroom and Photoshop. On my Mac, I skip straight to Lightroom and Photoshop, since I'm happy with Safari and don't try to game much on that system (that's what the PC is for ;-)

As for uninstalling, usually nothing... My last PC was a custom build so there wasn't any junk on it and Macs are great about not having anything I don't want.
3
 
LVL 7

Author Comment

by:Brian Matis
Yeah, definitely got to take care of all the OS and driver patches first! What do you do after all that?
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LVL 33

Expert Comment

by:shalomc
I don't install PCs for a living, and only do that for select family members: myself, children, wife and mother in law.
Everybody gets Chrome, Office and Adobe Acrobat reader.
Then for each their tools of trade. This is the list of first installations as happened during the past year.

For me:
* Virtual box, Git, JDK, Python, Jetbrains IDE, curl, whois, dig, jq, notepad++, skype, mumble and Eve Online

For my mother in law:
* OE Classic

For my wife:
* Photoshop, Invision, Premiere

For my son:
* Minecraft, Netflix

For my daughter:
* Matlab, Netflix
1
sudo apt-get upgrade

Open in new window


And I get this result:


Preparing to unpack .../debconf_1.5.56+deb8u1_all.deb ...
Traceback (most recent call last):
  File "/usr/bin/py3clean", line 24, in <module>
    import logging
  File "/usr/lib/python3.4/logging/__init__.py", line 26, in <module>
    import sys, os, time, io, traceback, warnings, weakref, collections
  File "/usr/lib/python3.4/traceback.py", line 3, in <module>
    import linecache
  File "/usr/lib/python3.4/linecache.py", line 10, in <module>
    import tokenize
  File "/usr/lib/python3.4/tokenize.py", line 29, in <module>
    import collections
TypeError: source code string cannot contain null bytes
dpkg: advarsel: underprosessen gammelt pre-removal-skript returnerte feilstatus 1
dpkg: trying script from the new package instead ...
Traceback (most recent call last):
  File "/usr/bin/py3clean", line 24, in <module>
    import logging
  File "/usr/lib/python3.4/logging/__init__.py", line 26, in <module>
    import sys, os, time, io, traceback, warnings, weakref, collections
  File "/usr/lib/python3.4/traceback.py", line 3, in <module>
    import linecache
  File "/usr/lib/python3.4/linecache.py", line 10, in <module>
    import tokenize
  File "/usr/lib/python3.4/tokenize.py", line 29, in <module>
    import collections
TypeError: source code string cannot contain null bytes
dpkg: error processing archive /var/cache/apt/archives/debconf_1.5.56+deb8u1_all.deb (--unpack):
 
0
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VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Hi,
I powered off guest OS (Windows 2008 R2) before acquiring snapshot.
After reboot, I installed some upgrades and all went ok.
Now I would like to remove snapshot.
Should I first power off again that VM, or can I proceed with VM running?
Thank you
ESXi: 6.0
0
5 differences between multiprocessing scheduling and uniprocessing scheduling
0
Hi guys,

I am having difficulty finding a way to edit ioncube encoded php files packed with my WHMCS install. Im guessing that since there are so many custom themes for whmcs out there, there must be a way to do it.

There are many errors that require me to edit the original php to fix but I can't seem to find a way to get into those files?

I am using a Mac running Os High Sierra, I also have MAMP PRO.

Any suggestions would be highly appreciated,

Thanks
0
hi how can someone track the virus which is in LAN network how can i get rid of it
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I recently take my MacBook Pro to a local apple store to do a fresh clean installation. It only take about 10 minutes for the guy in the Genious bar to wipe off everything in the hard drive and have the newest OS copy installed to the hard drives.

Since our company just bought about 20 brand new, exactly same HP servers, and they all will be installed with the same version of CentOS. I am thinking if I can do the same way like what the guy in the apple store does to my laptop, isn't that be nice? it could save me a lot of time and effort.

It used to take me more than ONE hour to install the CentOS to a new server by DVD or USB. 20 servers would take quite a few days. If I can finish the installation of OS in 10 minutes or so for each server, I probably can finish the 20 servers in half day.

Is it possible to do so? I did google some tutorial online:

https://www.liberiangeek.net/2014/07/install-centos-7-via-netinstall/

https://www.howtoforge.com/how-to-do-a-centos-6.0-network-installation-over-http

however, I don't see that these procedure can be done in 10 minutes.

Anybody has the idea how the apple tech guy does? thanks.
0
Date/Time:           2017-10-09 13:31:57.3320 -0400
Launch Time:         2017-10-09 13:31:40.4276 -0400
OS Version:          iPhone OS 11.0.2 (15A421)
Baseband Version:    2.00.01
Report Version:      104

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Triggered by Thread:  0

Application Specific Information:
abort() called

Filtered syslog:
None found

Last Exception Backtrace:
(0x186787d38 0x185c9c528 0x1867951f8 0x18678d6e4 0x1866730dc 0x192142f48 0x1913955b8 0x19a2df7a4 0x18fb978a4 0x18fb977d4 0x18fd1ce28 0x18fc3ee04 0x18fc3ea34 0x18fc3e95c 0x18fb95000 0x18a7650b4 0x18a769194 0x18a6d7f24 0x18a6fe340 0x18a6ff180 0x18672f8b8 0x18672d270 0x18672d82c 0x18664e2d8 0x1884dff84 0x18fbfb880 0x10461ad4c 0x18617256c)

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libsystem_kernel.dylib              0x00000001862a1348 0x186280000 + 136008
1   libsystem_pthread.dylib             0x00000001863b5354 0x1863b2000 + 13140
2   libsystem_c.dylib                   0x0000000186210fd8 0x1861ae000 + 405464
3   libc++abi.dylib                     0x0000000185c74068 0x185c72000 + 8296
4   libc++abi.dylib                     0x0000000185c74210 0x185c72000 + 8720
5   libobjc.A.dylib                     0x0000000185c9c810 0x185c94000 + 34832
0

Operating Systems

34K

Solutions

36K

Contributors

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.