What runs when the OS is completely corrupted? [closed] - operating-system

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Closed 7 years ago.
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When the OS is completely corrupted, what does the computer run? How does it detect bootable devices?

The computer bios will have a list of bootable devices. It will check them in a specified order to look for a boot sector. If it finds a boot sector it will boot whatever os the boot file in the boot sector tells it to. If the os is corrupt the user will have to either repair it or tell the bios to boot from a different device.

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Can I have two different operating systems for two different users on a single machine [closed]

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Closed 8 years ago.
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My computer has two users. So can I install two different operating system for each user?
Just like windows for user1 and ubuntu for user2?
Possible with GRUB http://wiki.ubuntuusers.de/GRUB
But only if it's not a problem if one user can boot up into the other OS. ( he couldnt do anything because he has no password. )
Yes, it's possible. If you use a encryption tool with a secure bootloader like DiskCryptor, you can even password-protect one operating system and boot into an alternate operating system if the password isn't entered.

Where does windows commandline ftp download to? [closed]

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Closed 8 years ago.
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I am running ftp in windows command line and the operating system in windows 7.
Where do files get downloaded to locally when i do a get operation?
The command line ftp client uses the current working directory (which can be changed with the lcd command)

can same app run on different cpu type but same operating system? [closed]

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Closed 8 years ago.
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I have an application that formerly was running on an itanium suse 11,
I'm wondering to now Can I freely choose suse 11 intel support on new intel cpu?
what I mean is that , is there any chance that application affect by changing cpu type but not the operating system it use?
The compiled binaries will not run on both x86 and arm. However, it is very possible to compile binaries for each platform from the same source code. How likely this is depends on too many factors to list here; you will have to try compiling it yourself. Depending on the language, cross architecture compilation will have varying difficulty. With Java or Python or something similar, the architecture is unlikely to cause problems as long as your are on the same OS.
Link to a GGC-centric guide.

qemu failed in loadvm while the guest system is windows xp [closed]

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Closed 9 years ago.
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The guest system is in Windows XP and in the monitor.
First I run savevm test which looks ok
Then i run loadvm, the system xp halted, all i can do is run system_reset in the monitor to restart the xp system.
Does anyone know why?
Here's what I found: using -rtc base=localtime,clock=vm, I can restore it. I think that the sudden jump in clock time is what freezes the OS.
Note that you can then adjust the clock inside the guest if needed.

Cloning a Guardian Edge Protected Drive [closed]

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Closed 4 years ago.
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I need to clone/ghost a GE protected hard drive, but I am running into various issues. Norton Ghost seems to just freeze up, XXClone puts up strange errors. I realize the entire drive is encrypted, but would that make a difference to a cloning software?
Anybody have any experience with this?
Under Linux you can use the dd command to clone data from one drive to another.
If you don't have a machine running Linux, you can download a bootable CD from e.g. http://www.sysresccd.org/Main_Page which will have dd and other useful commands for dealing with hard drives and data recovery.