[OpenWrt-Devel] [PATCH] [base-files] show hint when JFFS2-partition is full and overlayfs mounted read-only
Bastian Bittorf
bittorf at bluebottle.com
Wed Jun 3 15:26:27 EDT 2015
since r45833 and r45848 the overlayfs is automatically mounted read-only
(and blocks remounts as r/w) when JFFS2 is full. see ticket #19564
because of this normal file deletion is not possible anymore.
if a user logins interactively (e.g. SSH) show a hint for this,
that files must be removed in /overlay/upper/...
Signed-off-by: Bastian Bittorf <bittorf at bluebottle.com>
---
package/base-files/files/etc/profile | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/package/base-files/files/etc/profile b/package/base-files/files/etc/profile
index 3dd58e1..007baf0 100644
--- a/package/base-files/files/etc/profile
+++ b/package/base-files/files/etc/profile
@@ -1,6 +1,10 @@
#!/bin/sh
[ -f /etc/banner ] && cat /etc/banner
[ -e /tmp/.failsafe ] && cat /etc/banner.failsafe
+fgrep -sq '/ overlay ro,' /proc/mounts && {
+ echo 'Your JFFS2-partition seems full and overlayfs is mounted read-only.'
+ echo 'Please try to remove files from /overlay/upper/... and reboot!'
+}
export PATH=/usr/bin:/usr/sbin:/bin:/sbin
export HOME=$(grep -e "^${USER:-root}:" /etc/passwd | cut -d ":" -f 6)
--
1.7.10.4
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