52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
From b6f2e05819d9867b7ca69365091ff480556fcfe9 Mon Sep 17 00:00:00 2001
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From: WANG Chao <chaowang@redhat.com>
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Date: Fri, 26 Apr 2013 15:16:19 +0800
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Subject: [PATCH] _emergency_shell: Show current working directory correctly in
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shell.
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When dropped to emergency shell, for example, use rd.break=pre-pivot,
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the PS1 won't correctly show current directory we're in:
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pre-pivot:/# cd /sysroot/
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pre-pivot:/#
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(still shows "/")
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Let's take a look at PS1 variable:
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(I'm adding prefix/suffix 'x' to make it clear):
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pre-pivot:/# echo x${PS1}x
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xpre-pivot:/# x
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(PS1 isn't dynamic)
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Regarding the current dracut code, it should be:
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pre-pivot:/# cd /sysroot/etc
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pre-pivot:/sysroot/etc#
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With this patch:
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pre-pivot:/# echo x${PS1}x
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xpre-pivot:${PWD}# x
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(Now PS1 is dynamic, it will show the directory correctly)
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I tested for both normal boot and kdump boot.
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Signed-off-by: WANG Chao <chaowang@redhat.com>
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---
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modules.d/99base/dracut-lib.sh | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
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index 9bd25f4..5cb0add 100755
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--- a/modules.d/99base/dracut-lib.sh
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+++ b/modules.d/99base/dracut-lib.sh
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@@ -926,7 +926,7 @@ _emergency_shell()
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local _name="$1"
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if [ -n "$DRACUT_SYSTEMD" ]; then
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> /.console_lock
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- echo "PS1=\"$_name:\${PWD}# \"" >/etc/profile
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+ echo "PS1=\"$_name:\\\${PWD}# \"" >/etc/profile
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systemctl start dracut-emergency.service
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rm -f /etc/profile
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rm -f /.console_lock
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