forked from josch/mmdebstrap
add comment about mounting sys with rbind in unshare mode
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@ -1066,6 +1066,9 @@ sub setup {
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if ($options->{mode} eq 'unshare') {
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# without the network namespace unshared, we cannot mount a new
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# sysfs. Since we need network, we just bind-mount.
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#
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# we have to rbind because just using bind results in "wrong fs
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# type, bad option, bad superblock" error
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0 == system('mount', '-o', 'rbind', '/sys', "$options->{root}/sys") or die "mount failed: $?";
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} else {
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0 == system('mount', '-t', 'sysfs', '-o', 'nosuid,nodev,noexec', 'sys', "$options->{root}/sys") or die "mount failed: $?";
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