From b6f2e05819d9867b7ca69365091ff480556fcfe9 Mon Sep 17 00:00:00 2001

From: WANG Chao <chaowang@redhat.com>

Date: Fri, 26 Apr 2013 15:16:19 +0800

Subject: [PATCH] _emergency_shell: Show current working directory correctly in

 shell.

When dropped to emergency shell, for example, use rd.break=pre-pivot,

the PS1 won't correctly show current directory we're in:

pre-pivot:/# cd /sysroot/

pre-pivot:/#

(still shows "/")

Let's take a look at PS1 variable:

(I'm adding prefix/suffix 'x' to make it clear):

pre-pivot:/# echo x${PS1}x

xpre-pivot:/# x

(PS1 isn't dynamic)

Regarding the current dracut code, it should be:

pre-pivot:/# cd /sysroot/etc

pre-pivot:/sysroot/etc#

With this patch:

pre-pivot:/# echo x${PS1}x

xpre-pivot:${PWD}# x

(Now PS1 is dynamic, it will show the directory correctly)

I tested for both normal boot and kdump boot.

Signed-off-by: WANG Chao <chaowang@redhat.com>

---

 modules.d/99base/dracut-lib.sh | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh

index 9bd25f4..5cb0add 100755

--- a/modules.d/99base/dracut-lib.sh

+++ b/modules.d/99base/dracut-lib.sh

@@ -926,7 +926,7 @@ _emergency_shell()

     local _name="$1"

     if [ -n "$DRACUT_SYSTEMD" ]; then

         > /.console_lock

-        echo "PS1=\"$_name:\${PWD}# \"" >/etc/profile

+        echo "PS1=\"$_name:\\\${PWD}# \"" >/etc/profile

         systemctl start dracut-emergency.service

         rm -f /etc/profile

         rm -f /.console_lock