If I don't use copy2fs at all, then I get this:
tc@box:~$ sudo /usr/local/etc/init.d/cups restart
no /usr/local/sbin/cupsd found; none killed
tc@box:~$
A little more info:
tc@box:~$ strace -f -s 254 sudo /usr/local/etc/init.d/cups restart 2>&1 | tee cups.strace.log
execve("/usr/bin/sudo", ["sudo", "/usr/local/etc/init.d/cups", "restart"], [/* 28 vars */]) = 0
access(0xb7f28395, F_OK) = -1 ENOENT (No such file or directory)
brk(0) = 0x9a69000
fcntl64(0, F_GETFD) = 0
fcntl64(1, F_GETFD) = 0
fcntl64(2, F_GETFD) = 0
access(0xb7f28395, F_OK) = -1 ENOENT (No such file or directory)
access(0xb7f2b058, R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, 0xb7f2a792, O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fstat64(3, {...}) = 0
mmap2(NULL, 47227, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f00000
close(3) = 0
openat(AT_FDCWD, 0xb7f30fc0, O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, 0xbfcdd800, 512) = 512
fstat64(3, {...}) = 0
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7efe000
mmap2(NULL, 16524, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7ef9000
mmap2(0xb7efa000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7efa000
mmap2(0xb7efb000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7efb000
mmap2(0xb7efc000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7efc000
close(3) = 0
openat(AT_FDCWD, 0xb7efe2a0, O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, 0xbfcdd7e0, 512) = 512
fstat64(3, {...}) = 0
mmap2(NULL, 196924, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7ec8000
mmap2(0xb7ec9000, 20480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7ec9000
mmap2(0xb7ece000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0xb7ece000
mmap2(0xb7ed0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7) = 0xb7ed0000
mmap2(0xb7ed2000, 155964, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7ed2000
close(3) = 0
openat(AT_FDCWD, 0xb7efe560, O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, 0xbfcdd7c0, 512) = 512
fstat64(3, {...}) = 0
mmap2(NULL, 82100, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7eb3000
mmap2(0xb7eb5000, 45056, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7eb5000
mmap2(0xb7ec0000, 24576, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd) = 0xb7ec0000
mmap2(0xb7ec6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12) = 0xb7ec6000
close(3) = 0
openat(AT_FDCWD, 0xb7efe820, O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, 0xbfcdd7a0, 512) = 512
fstat64(3, {...}) = 0
mmap2(NULL, 1361664, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d66000
mmap2(0xb7d7f000, 933888, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19) = 0xb7d7f000
mmap2(0xb7e63000, 303104, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xfd) = 0xb7e63000
mmap2(0xb7ead000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x146) = 0xb7ead000
mmap2(0xb7eb0000, 9984, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7eb0000
close(3) = 0
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7d64000
set_thread_area(bfcde020) = 0
mprotect(0xb7ead000, 8192, PROT_READ) = 0
mprotect(0xb7ec6000, 4096, PROT_READ) = 0
mprotect(0xb7ed0000, 4096, PROT_READ) = 0
mprotect(0xb7efc000, 4096, PROT_READ) = 0
mprotect(0x8065000, 4096, PROT_READ) = 0
mprotect(0xb7f2f000, 4096, PROT_READ) = 0
munmap(0xb7f00000, 47227) = 0
brk(0) = 0x9a69000
brk(0x9a8a000) = 0x9a8a000
brk(0x9a8b000) = 0x9a8b000
openat(AT_FDCWD, 0xb7e7fd08, O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fstat64(3, {...}) = 0
mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7b64000
mmap2(NULL, 2932736, PROT_READ, MAP_PRIVATE, 3, 0x462) = 0xb7898000
close(3) = 0
geteuid32() = 1001
write(2, 0xbfcded7d, 4sudo) = 4
write(2, 0x80630ef, 2: ) = 2
write(2, 0xbfcdbaec, 19must be setuid root) = 19
write(2, 0xb7eafcc7, 1
) = 1
exit_group(1) = ?
But,
tc@box:~$ la /usr/bin/sudo
---s--x--x 1 root root 124604 Feb 3 15:00 /usr/bin/sudo
tc@box:~$ version
11.0
tc@box:~$ uname -a
Linux box 5.4.3-tinycore #2020 SMP Tue Dec 17 17:00:50 UTC 2019 i686 GNU/Linux
tc@box:~$ free
total used free shared buff/cache available
Mem: 3044724 404720 2081136 120500 558868 2238588
Swap: 0 0 0
tc@box:~$ df -a
Filesystem Size Used Available Use% Mounted on
rootfs 2.6G 96.6M 2.5G 4% /
proc 0 0 0 0% /proc
sysfs 0 0 0 0% /sys
devpts 0 0 0 0% /dev/pts
tmpfs 1.5G 8.1M 1.4G 1% /dev/shm
fusectl 0 0 0 0% /sys/fs/fuse/connections
/dev/sda1 31.1G 26.5G 4.6G 85% /mnt/sda1
/dev/loop0 864.0K 864.0K 0 100% /tmp/tcloop/ipv6-netfilter-5.4.3-tinycore
/dev/loop1 368.0K 368.0K 0 100% /tmp/tcloop/iptables
/dev/loop2 156.0K 156.0K 0 100% /tmp/tcloop/xtables-addons-5.4.3-tinycore
/dev/loop3 2.9M 2.9M 0 100% /tmp/tcloop/glibc_gconv
/dev/loop4 1.6M 1.6M 0 100% /tmp/tcloop/mylocale-en_US.UTF-8
/dev/loop5 92.0K 92.0K 0 100% /tmp/tcloop/libpng
/dev/loop6 304.0K 304.0K 0 100% /tmp/tcloop/freetype
/dev/loop7 72.0K 72.0K 0 100% /tmp/tcloop/expat2
/dev/loop8 156.0K 156.0K 0 100% /tmp/tcloop/fontconfig
/dev/loop9 708.0K 708.0K 0 100% /tmp/tcloop/Hack-font
/dev/loop10 28.0K 28.0K 0 100% /tmp/tcloop/bzip2-lib
/dev/loop11 256.0K 256.0K 0 100% /tmp/tcloop/pcre
/dev/loop12 1.8M 1.8M 0 100% /tmp/tcloop/openssl-1.1.1
/dev/loop13 56.0K 56.0K 0 100% /tmp/tcloop/libtirpc
/dev/loop14 212.0K 212.0K 0 100% /tmp/tcloop/ncursesw
/dev/loop15 180.0K 180.0K 0 100% /tmp/tcloop/procps-ng
/dev/loop16 32.0K 32.0K 0 100% /tmp/tcloop/libdnet
/dev/loop17 184.0K 184.0K 0 100% /tmp/tcloop/fuse
/dev/loop18 16.0K 16.0K 0 100% /tmp/tcloop/libffi
/dev/loop19 1.4M 1.4M 0 100% /tmp/tcloop/glib2
/dev/loop20 596.0K 596.0K 0 100% /tmp/tcloop/open-vm-tools
/dev/loop21 76.0K 76.0K 0 100% /tmp/tcloop/liblzma
/dev/loop22 584.0K 584.0K 0 100% /tmp/tcloop/libxml2
/dev/loop23 100.0K 100.0K 0 100% /tmp/tcloop/wayland
/dev/loop24 4.0K 4.0K 0 100% /tmp/tcloop/libxshmfence
/dev/loop25 36.0K 36.0K 0 100% /tmp/tcloop/udev-lib
/dev/loop26 16.0K 16.0K 0 100% /tmp/tcloop/libpciaccess
/dev/loop27 132.0K 132.0K 0 100% /tmp/tcloop/libdrm
/dev/loop28 8.0K 8.0K 0 100% /tmp/tcloop/libXdmcp
/dev/loop29 4.0K 4.0K 0 100% /tmp/tcloop/libXau
/dev/loop30 276.0K 276.0K 0 100% /tmp/tcloop/libxcb
/dev/loop31 896.0K 896.0K 0 100% /tmp/tcloop/libX11
/dev/loop32 24.0K 24.0K 0 100% /tmp/tcloop/libXext
/dev/loop33 8.0K 8.0K 0 100% /tmp/tcloop/libXxf86vm
/dev/loop34 8.0K 8.0K 0 100% /tmp/tcloop/libXfixes
/dev/loop35 4.0K 4.0K 0 100% /tmp/tcloop/libXdamage
/dev/loop36 164.0K 164.0K 0 100% /tmp/tcloop/libGL
/dev/loop37 12.0K 12.0K 0 100% /tmp/tcloop/libGLESv2
/dev/loop38 88.0K 88.0K 0 100% /tmp/tcloop/libEGL
/dev/loop39 16.0K 16.0K 0 100% /tmp/tcloop/libXrender
/dev/loop40 276.0K 276.0K 0 100% /tmp/tcloop/pixman
/dev/loop41 516.0K 516.0K 0 100% /tmp/tcloop/cairo
/dev/loop42 12.0K 12.0K 0 100% /tmp/tcloop/libsigc++
/dev/loop43 768.0K 768.0K 0 100% /tmp/tcloop/glibmm
/dev/loop44 52.0K 52.0K 0 100% /tmp/tcloop/cairomm
/dev/loop45 28.0K 28.0K 0 100% /tmp/tcloop/fribidi
/dev/loop46 32.0K 32.0K 0 100% /tmp/tcloop/libXft
/dev/loop47 76.0K 76.0K 0 100% /tmp/tcloop/graphite2
/dev/loop48 476.0K 476.0K 0 100% /tmp/tcloop/harfbuzz
/dev/loop49 212.0K 212.0K 0 100% /tmp/tcloop/pango
/dev/loop50 60.0K 60.0K 0 100% /tmp/tcloop/pangomm
/dev/loop51 44.0K 44.0K 0 100% /tmp/tcloop/atk
/dev/loop52 100.0K 100.0K 0 100% /tmp/tcloop/atkmm
/dev/loop53 28.0K 28.0K 0 100% /tmp/tcloop/libXi
/dev/loop54 16.0K 16.0K 0 100% /tmp/tcloop/libXrandr
/dev/loop55 4.0K 4.0K 0 100% /tmp/tcloop/libXinerama
/dev/loop56 16.0K 16.0K 0 100% /tmp/tcloop/libXcursor
/dev/loop57 4.0K 4.0K 0 100% /tmp/tcloop/libXcomposite
/dev/loop58 116.0K 116.0K 0 100% /tmp/tcloop/libjpeg-turbo
/dev/loop59 180.0K 180.0K 0 100% /tmp/tcloop/libtiff
/dev/loop60 192.0K 192.0K 0 100% /tmp/tcloop/gdk-pixbuf2
/dev/loop61 56.0K 56.0K 0 100% /tmp/tcloop/libxkbfile
/dev/loop62 8.0K 8.0K 0 100% /tmp/tcloop/libXxf86dga
/dev/loop63 8.0K 8.0K 0 100% /tmp/tcloop/libXv
/dev/loop64 12.0K 12.0K 0 100% /tmp/tcloop/libXvmc
/dev/loop65 12.0K 12.0K 0 100% /tmp/tcloop/libXtst
/dev/loop66 4.0K 4.0K 0 100% /tmp/tcloop/libXss
/dev/loop67 4.0K 4.0K 0 100% /tmp/tcloop/libXres
/dev/loop68 12.0K 12.0K 0 100% /tmp/tcloop/libfontenc
/dev/loop69 96.0K 96.0K 0 100% /tmp/tcloop/libXfont2
/dev/loop70 44.0K 44.0K 0 100% /tmp/tcloop/libXpm
/dev/loop71 12.0K 12.0K 0 100% /tmp/tcloop/libSM
/dev/loop72 36.0K 36.0K 0 100% /tmp/tcloop/libICE
/dev/loop73 144.0K 144.0K 0 100% /tmp/tcloop/libXt
/dev/loop74 44.0K 44.0K 0 100% /tmp/tcloop/libXmu
/dev/loop75 272.0K 272.0K 0 100% /tmp/tcloop/libXaw
/dev/loop76 16.0K 16.0K 0 100% /tmp/tcloop/libFS
/dev/loop77 244.0K 244.0K 0 100% /tmp/tcloop/dbus
/dev/loop78 96.0K 96.0K 0 100% /tmp/tcloop/at-spi2-core
/dev/loop79 60.0K 60.0K 0 100% /tmp/tcloop/at-spi2-atk
/dev/loop80 228.0K 228.0K 0 100% /tmp/tcloop/libepoxy
/dev/loop81 456.0K 456.0K 0 100% /tmp/tcloop/shared-mime-info
/dev/loop82 3.4M 3.4M 0 100% /tmp/tcloop/gtk3
/dev/loop83 1.4M 1.4M 0 100% /tmp/tcloop/gtkmm
/dev/loop84 532.0K 532.0K 0 100% /tmp/tcloop/elfutils
/dev/loop85 20.0K 20.0K 0 100% /tmp/tcloop/libvdpau
/dev/loop86 15.3M 15.3M 0 100% /tmp/tcloop/llvm-lib
/dev/loop87 2.7M 2.7M 0 100% /tmp/tcloop/xorg-server
/dev/loop88 756.0K 756.0K 0 100% /tmp/tcloop/xkeyboard-config
/dev/loop89 12.0K 12.0K 0 100% /tmp/tcloop/xf86-video-vesa
/dev/loop90 108.0K 108.0K 0 100% /tmp/tcloop/libwacom
/dev/loop91 36.0K 36.0K 0 100% /tmp/tcloop/libevdev
/dev/loop92 12.0K 12.0K 0 100% /tmp/tcloop/mtdev
/dev/loop93 196.0K 196.0K 0 100% /tmp/tcloop/libinput
/dev/loop94 28.0K 28.0K 0 100% /tmp/tcloop/xf86-input-libinput
/dev/loop95 532.0K 532.0K 0 100% /tmp/tcloop/xcursor-themes
/dev/loop96 1.5M 1.5M 0 100% /tmp/tcloop/Xorg-fonts
/dev/loop97 480.0K 480.0K 0 100% /tmp/tcloop/Xorg-7.7-bin
/dev/loop98 184.0K 184.0K 0 100% /tmp/tcloop/imlib2
/dev/loop99 36.0K 36.0K 0 100% /tmp/tcloop/imlib2-bin
/dev/loop100 456.0K 456.0K 0 100% /tmp/tcloop/fltk-1.3
/dev/loop101 1.1M 1.1M 0 100% /tmp/tcloop/Xlibs
/dev/loop102 128.0K 128.0K 0 100% /tmp/tcloop/Xprogs
/dev/loop103 18.4M 18.4M 0 100% /tmp/tcloop/Xorg-7.7-3d
/dev/loop104 60.0K 60.0K 0 100% /tmp/tcloop/xf86-video-vmware
/dev/loop105 12.0K 12.0K 0 100% /tmp/tcloop/xf86-input-vmmouse
/dev/loop106 132.0K 132.0K 0 100% /tmp/tcloop/i2c-5.4.3-tinycore
/dev/loop107 2.6M 2.6M 0 100% /tmp/tcloop/graphics-5.4.3-tinycore
/dev/loop108 132.0K 132.0K 0 100% /tmp/tcloop/open-vm-tools-desktop
/dev/loop109 28.0K 28.0K 0 100% /tmp/tcloop/flwm
/dev/loop110 376.0K 376.0K 0 100% /tmp/tcloop/rxvt
/dev/loop111 36.0K 36.0K 0 100% /tmp/tcloop/wbar
/dev/loop112 1.3M 1.3M 0 100% /tmp/tcloop/openssh
/dev/loop113 148.0K 148.0K 0 100% /tmp/tcloop/ca-certificates
vmhgfs-fuse 1.8T 1.6T 226.9G 88% /mnt/hgfs/andy-home
/dev/loop114 128.0K 128.0K 0 100% /tmp/tcloop/readline
/dev/loop115 72.0K 72.0K 0 100% /tmp/tcloop/gdbm
/dev/loop116 532.0K 532.0K 0 100% /tmp/tcloop/sqlite3
/dev/loop117 15.6M 15.6M 0 100% /tmp/tcloop/python3.6
/dev/loop118 44.0K 44.0K 0 100% /tmp/tcloop/python3.6-olefile
/dev/loop119 464.0K 464.0K 0 100% /tmp/tcloop/python3.6-pillow
/dev/loop120 20.0K 20.0K 0 100% /tmp/tcloop/libpci
/dev/loop121 2.0M 2.0M 0 100% /tmp/tcloop/net-snmp
/dev/loop122 44.0K 44.0K 0 100% /tmp/tcloop/libieee1284
/dev/loop123 120.0K 120.0K 0 100% /tmp/tcloop/input-joystick-5.4.3-tinycore
/dev/loop124 1.9M 1.9M 0 100% /tmp/tcloop/alsa-modules-5.4.3-tinycore
/dev/loop125 3.1M 3.1M 0 100% /tmp/tcloop/v4l-dvb-5.4.3-tinycore
/dev/loop126 184.0K 184.0K 0 100% /tmp/tcloop/libv4l2
/dev/loop127 404.0K 404.0K 0 100% /tmp/tcloop/libunistring
/dev/loop128 76.0K 76.0K 0 100% /tmp/tcloop/libidn
/dev/loop129 44.0K 44.0K 0 100% /tmp/tcloop/libtasn1
/dev/loop130 504.0K 504.0K 0 100% /tmp/tcloop/p11-kit
/dev/loop131 220.0K 220.0K 0 100% /tmp/tcloop/gmp
/dev/loop132 276.0K 276.0K 0 100% /tmp/tcloop/nettle3
/dev/loop133 1.1M 1.1M 0 100% /tmp/tcloop/gnutls3.6
/dev/loop134 1020.0K 1020.0K 0 100% /tmp/tcloop/gcc_libs
/dev/loop135 152.0K 152.0K 0 100% /tmp/tcloop/libavahi
/dev/loop136 244.0K 244.0K 0 100% /tmp/tcloop/libcups
/dev/loop137 44.0K 44.0K 0 100% /tmp/tcloop/libusb
/dev/loop138 68.0K 68.0K 0 100% /tmp/tcloop/libsane
/dev/loop139 92.0K 92.0K 0 100% /tmp/tcloop/dbus-glib
/dev/loop140 108.0K 108.0K 0 100% /tmp/tcloop/dbus-python3.6
/dev/loop141 172.0K 172.0K 0 100% /tmp/tcloop/lcms2
/dev/loop142 8.4M 8.4M 0 100% /tmp/tcloop/ghostscript
/dev/loop143 508.0K 508.0K 0 100% /tmp/tcloop/qpdf
/dev/loop144 288.0K 288.0K 0 100% /tmp/tcloop/curl
/dev/loop145 260.0K 260.0K 0 100% /tmp/tcloop/openjpeg2
/dev/loop146 116.0K 116.0K 0 100% /tmp/tcloop/nspr
/dev/loop147 1.7M 1.7M 0 100% /tmp/tcloop/nss
/dev/loop148 964.0K 964.0K 0 100% /tmp/tcloop/poppler07
/dev/loop149 876.0K 876.0K 0 100% /tmp/tcloop/cups-filters
/dev/loop150 5.4M 5.4M 0 100% /tmp/tcloop/cups
/dev/loop151 7.5M 7.5M 0 100% /tmp/tcloop/hplip
/dev/loop152 7.1M 7.1M 0 100% /tmp/tcloop/hplip-plugins
/dev/loop153 128.0K 128.0K 0 100% /tmp/tcloop/gamin
/dev/loop154 8.0K 8.0K 0 100% /tmp/tcloop/hicolor-icon-theme
/dev/loop155 404.0K 404.0K 0 100% /tmp/tcloop/libasound
/dev/loop156 70.3M 70.3M 0 100% /tmp/tcloop/firefox-ESR
/dev/loop157 88.0K 88.0K 0 100% /tmp/tcloop/strace
I don't know what's going on, but cups won't start so I can't test the interface.