Give the shell in the second cgroup namespace a different prompt,
so as to clearly distinguish the two namespaces.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
-# \fBunshare \-Cm bash\fP
+# \fBPS1="sh2# " unshare \-Cm bash\fP
-# \fBcat /proc/self/cgroup | grep freezer\fP
+sh2# \fBcat /proc/self/cgroup | grep freezer\fP
-# \fBcat /proc/1/cgroup | grep freezer\fP
+sh2# \fBcat /proc/1/cgroup | grep freezer\fP
-# \fBcat /proc/20124/cgroup | grep freezer\fP
+sh2# \fBcat /proc/20124/cgroup | grep freezer\fP
7:freezer:/../sub2
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7:freezer:/../sub2
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-# \fBcat /proc/self/mountinfo | grep freezer\fP
+sh2# \fBcat /proc/self/mountinfo | grep freezer\fP
155 145 0:32 /.. /sys/fs/cgroup/freezer ...
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155 145 0:32 /.. /sys/fs/cgroup/freezer ...
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-# \fBmount \-\-make\-rslave /\fP # Don't propagate mount events
- # to other namespaces
-# \fBumount /sys/fs/cgroup/freezer\fP
-# \fBmount \-t cgroup \-o freezer freezer /sys/fs/cgroup/freezer\fP
-# \fBcat /proc/self/mountinfo | grep freezer\fP
+sh2# \fBmount \-\-make\-rslave /\fP # Don't propagate mount events
+ # to other namespaces
+sh2# \fBumount /sys/fs/cgroup/freezer\fP
+sh2# \fBmount \-t cgroup \-o freezer freezer /sys/fs/cgroup/freezer\fP
+sh2# \fBcat /proc/self/mountinfo | grep freezer\fP
155 145 0:32 / /sys/fs/cgroup/freezer rw,relatime ...
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155 145 0:32 / /sys/fs/cgroup/freezer rw,relatime ...
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