sudo apt-get install git wget qemu aqemusudo apt-get install libc6-dev:i386 gccsudo apt-get install gdbgit clone https://github.com/subhrendu1987/xv6-public/cd xv6-public && make qemu- If you have 64 bit OS there is a chance Makefile will not be able to find qemu.
Check using the command
make qemu-noxand see the output. In that case you should edit the Makefile at line 54 and add the following code:QEMU = qemu-system-x86_64 make qemu-gdb- Open new terminal
cd xv6-public && gdb ./kernel
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To build xv6 on an x86 ELF machine (like Linux or FreeBSD), run "make".
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On non-x86 or non-ELF machines (like OS X, even on x86), you may need to install a cross-compiler gcc suite capable of producing x86 ELF binaries (see https://pdos.csail.mit.edu/6.828/).
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Then run "make TOOLPREFIX=i386-jos-elf-". Now install the QEMU PC simulator and run "make qemu".