Here`s a question that I would pose and answer if I had enough rep: S: Linux kernel build fails with mmap error on VirtualBox shared folder Q: When building the Linux kernel on a VirtualBox shared folder, I get almost all the way through the build, but then it fails during SORTEX vmlinux and reports Could not mmap file: vmlinux. This is consistent with problems that others have reported with mmap on VirtualBox shared folders. A: As a fix for this very specific case, I modified kernel/scripts/link-vmlinux.sh function sortextable() from this: $(objtree)/scripts/sortextable ${1} To this: cp ${1} /tmp/.${1} $(objtree)/scripts/sortextable /tmp/.${1} cp /tmp/.${1} ${1}
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