I have found a bug with cpio 2.9 that affects archives made with find
-depth and extracted by root.
Archives not made with -depth are not affected.
The owner is not properly changed on directories.
$ mkdir A
$ touch A/B
$ find A -depth|cpio -oF Q
1 block
$ cpio -tvF Q
-rw-r--r-- 1 1000 1000 0 Feb 24 06:14 A/B
drwxr-xr-x 2 1000 1000 0 Feb 24 06:14 A
1 block
$ rm -r A
$ su
Password:
# cpio -idvmF Q
A/B
A
1 block
# find A -ls
10457 0 drwxr-xr-x 2 root root 60 Feb 24 06:19 A
10458 0 -rw-r--r-- 1 jidanni jidanni 0 Feb 24 06:14 A/B
# rm -r A
# cpio -idF Q
1 block
# find A -ls
10466 0 drwxr-xr-x 2 root root 60 Feb 24 06:20 A
10467 0 -rw-r--r-- 1 jidanni jidanni 0 Feb 24 06:20 A/B
If -depth was not used, the problem does not occur.
P.S., this example is the manual
% find . -print -depth | cpio -ov > tree.cpio
will get a warning: find: warning: you have specified the -depth...
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