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
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