Thanks and I would have never figured it out without your help. However, moving the binary to /opt didn't work either (I made sure there is empty /opt in the base too). Anything else I am missing?
root@osboxes:/home/osboxes/Development# tree stackupper/ stackupper/ ├── bin │ └── umut ├── dev ├── etc │ ├── machine-id │ ├── resolv.conf │ └── runtime ├── lib -> usr/lib ├── opt │ └── tree ├── proc ├── root ├── run ├── sys ├── tmp ├── usr │ ├── bin │ └── lib │ ├── extension-release.d │ │ └── extension-release.base │ └── systemd │ └── system │ └── stackupper.service └── var └── tmp 18 directories, 7 files root@osboxes:/home/osboxes/Development# cat stackupper/usr/lib/systemd/system/stackupper.service [Service] Type=oneshot ExecStart=/opt/tree / On Fri, Oct 15, 2021 at 2:23 PM Luca Boccassi <bl...@debian.org> wrote: > On Fri, 2021-10-15 at 12:18 +0000, Umut Tezduyar Lindskog wrote: > > Hi, following works for us (for reference, configuration is printed > > at the end) > > > > portablectl --now attach --extension=./stackupper ./base stackupper > > > > However, if we move the cat from base/usr/bin/cat to > > stackupper/bin/cat it is not working. Seems like we cannot include > > any library/executable in the extension. > > > > Are we missing something? > > > > > > root@osboxes:/home/osboxes/Development# tree base/ > > base/ > > ├──bin > > ├──dev > > ├──etc > > │ ├── machine-id > > │ ├── os-release > > │ └── resolv.conf > > ├──lib > > │ └── x86_64-linux-gnu > > │ └── libc.so.6 > > ├──lib64 > > │ ├──ld-2.32.so > > │ └── ld-linux-x86-64.so.2 > > ├──proc > > ├──root > > ├──run > > ├──sys > > ├──tmp > > ├──usr > > │ ├──bin > > │ │ ├──cat > > │ │ ├──echo > > │ │ └── tree > > │ └── lib > > │ └── systemd > > │ └── system > > └── var > > └── tmp > > > > 18 directories, 9 files > > > > root@osboxes:/home/osboxes/Development# tree stackupper/ > > stackupper/ > > ├──bin > > │ └── umut > > ├──dev > > ├──etc > > │ ├── machine-id > > │ ├── resolv.conf > > │ └── runtime > > ├──lib -> usr/lib > > ├──proc > > ├──root > > ├──run > > ├──sys > > ├──tmp > > ├──usr > > │ ├──bin > > │ └── lib > > │ ├──extension-release.d > > │ │ └── extension-release.base > > │ └── systemd > > │ └── system > > │ └── stackupper.service > > └── var > > └── tmp > > > > 17 directories, 6 files > > > > root@osboxes:/home/osboxes/Development# cat > > stackupper/usr/lib/systemd/system/stackupper.service > > [Service] > > Type=oneshot > > ExecStart=/usr/bin/cat /etc/os-release > > root@osboxes:/home/osboxes/Development#systemctl --version > > systemd 249 (249.4-1) > > +PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT +GNUTLS - > > OPENSSL +ACL +BLKID +CURL +ELFUTILS -FIDO2 +IDN2 -IDN +IPTC +KMOD > > +LIBCRYPTSETUP -LIBFDISK +PCRE2 -PWQUALITY -P11KIT -QRENCODE +BZIP2 > > +LZ4 +XZ +ZLIB +ZSTD -XKBCOMMON +UTMP +SYSVINIT default- > > hierarchy=unified > > Hi, > > You need to build your extension with the binaries under either the > /usr or /opt hierarchies. Legacy locations like /bin and /lib are > ignored. This is explained in the systemd-sysext.8 manpage. > > -- > Kind regards, > Luca Boccassi >