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From: Eugene Prokopiev <enp@altlinux.org>
To: ALT Linux Community general discussions <community@lists.altlinux.org>
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Subject: [Comm] Change password permission denied for root
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=FA=C4=D2=C1=D7=D3=D4=D7=D5=CA=D4=C5!

=F2=C1=D3=D3=CB=C1=D6=C9=D4=C5, =CB=C1=CB =D1 =D3=CD=CF=C7 =C4=CF=C2=C9=D4=
=D8=D3=D1 =D4=C1=CB=CF=C7=CF =DC=C6=C6=C5=CB=D4=C1?

# usermod -p "" user
usermod: cannot lock shadow password file
# strace -f usermod -p "" user
...
open("/etc/tcb/user/shadow.lock",
O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW, 0600) =3D -1 EACCES
(Permission denied)
...
# echo hello > /etc/tcb/user/shadow.lock
# rm /etc/tcb/user/shadow.lock
rm: remove regular empty file `/etc/tcb/user/shadow.lock'? y
# usermod -p "" user
usermod: cannot rewrite shadow password file
# strace -f usermod -p "" user
...
open("/etc/tcb/user/shadow-", O_WRONLY|O_CREAT|O_TRUNC, 0666) =3D -1
EACCES (Permission denied)
...
# echo hello > /etc/tcb/user/shadow-
# rm /etc/tcb/user/shadow-
rm: remove regular file `/etc/tcb/user/shadow-'? y
# usermod -p "" user
#

=EE=C1 =D7=D3=D1=CB=C9=CA =D3=CC=D5=DE=C1=CA: user =C2=D9=CC =D3=CF=DA=C4=
=C1=CE =D7 =D0=D2=CF=C3=C5=D3=D3=C5 =D3=CF=DA=C4=C1=CE=C9=D1 =CF=C2=D2=C1=
=DA=C1 =D3=C9=D3=D4=C5=CD=D9
=D3=D2=C5=C4=D3=D4=D7=C1=CD=C9 mkimage =D0=D2=C9=CD=C5=D2=CE=CF =D4=C1=CB:

useradd user
usermod -G wheel user
usermod -p "" user

--=20
=F3 =D5=D7=C1=D6=C5=CE=C9=C5=CD,
=F0=D2=CF=CB=CF=D0=D8=C5=D7 =E5=D7=C7=C5=CE=C9=CA