[PATCH kvmtool] setup: Add /etc/alternatives to host mirrors dirs

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From: Dmitry Monakhov <dmtrmonakhov@xxxxxxxxxxxxxx>

Many general purpose binaries in Ubuntu depens on /etc/alternatives directory
Example:
$ ls -lh /usr/bin/awk
lrwxrwxrwx 1 root root 21 апр 14  2017 /usr/bin/awk -> /etc/alternatives/awk
So such binaries will not works inside guest
$ echo 'awk -v' >  t.sh ; lkvm run -c 2 --sandbox t.sh
 /virt/sandbox.sh: 1: /virt/sandbox.sh: awk: not found

Let's forward this dir to guest-fs and make life easier for ubuntu users.
This will not break anything even if this directory not exits.
---
 builtin-setup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/builtin-setup.c b/builtin-setup.c
index b24d2a1..f710671 100644
--- a/builtin-setup.c
+++ b/builtin-setup.c
@@ -100,6 +100,7 @@ error_close_in:
 static const char *guestfs_dirs[] = {
 	"/dev",
 	"/etc",
+	"/etc/alternatives",
 	"/home",
 	"/host",
 	"/proc",
-- 
2.17.1




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