[OE-core] [[PATCH v3] init-install*: /etc/mtab make a link rather than a copy
Awais Belal
awais_belal at mentor.com
Mon Aug 1 11:31:43 UTC 2016
Using a copy would only make management of devices erroneous
and makes the system unstable in some scenarios as tools will
have to manipulate both files separately. A link ensures that
both files /proc/mounts and /etc/mtab will have the same
information at all times and this is how it is handled
on newer systems where there is such a need. Same is
suggested by busybox.
Signed-off-by: Awais Belal <awais_belal at mentor.com>
---
meta/recipes-core/initrdscripts/files/init-install-efi.sh | 4 ++--
meta/recipes-core/initrdscripts/files/init-install.sh | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/meta/recipes-core/initrdscripts/files/init-install-efi.sh b/meta/recipes-core/initrdscripts/files/init-install-efi.sh
index f564f4e..c5db2f0 100644
--- a/meta/recipes-core/initrdscripts/files/init-install-efi.sh
+++ b/meta/recipes-core/initrdscripts/files/init-install-efi.sh
@@ -122,8 +122,8 @@ umount ${device}* 2> /dev/null || /bin/true
mkdir -p /tmp
# Create /etc/mtab if not present
-if [ ! -e /etc/mtab ]; then
- cat /proc/mounts > /etc/mtab
+if [ ! -e /etc/mtab ] && [ -e /proc/mounts ]; then
+ ln -sf /proc/mounts /etc/mtab
fi
disk_size=$(parted ${device} unit mb print | grep '^Disk .*: .*MB' | cut -d" " -f 3 | sed -e "s/MB//")
diff --git a/meta/recipes-core/initrdscripts/files/init-install.sh b/meta/recipes-core/initrdscripts/files/init-install.sh
index 72ce92b..bf92acb 100644
--- a/meta/recipes-core/initrdscripts/files/init-install.sh
+++ b/meta/recipes-core/initrdscripts/files/init-install.sh
@@ -118,8 +118,8 @@ if [ ! -b /dev/loop0 ] ; then
fi
mkdir -p /tmp
-if [ ! -L /etc/mtab ]; then
- cat /proc/mounts > /etc/mtab
+if [ ! -L /etc/mtab ] && [ -e /proc/mounts ]; then
+ ln -sf /proc/mounts /etc/mtab
fi
disk_size=$(parted ${device} unit mb print | grep '^Disk .*: .*MB' | cut -d" " -f 3 | sed -e "s/MB//")
--
1.9.1
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