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Overview This guide walks through importing the official Debian 12 (Bookworm) generic cloud image into Oracle Cloud Infrastructure (OCI) as a custom image, and launching a compute instance from it.  As of now, OCI don't have native platform images for Debian Linux. But in some scenarios, we need to use the Debian Linux image for application deployment. However, Debian is listed as a supported Linux or UNIX-like Operating System on OCI - https://docs.oracle.com/en-us/iaas/Content/Compute/Tasks/importingcustomimagelinux.htm Source image used in this walkthrough: https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2 ⚠️ This demonstration is performed in a personal OCI tenancy using test resources only. No customer data, environments, or screenshots are used. High-level flow: •          Download the qcow2 in OCI Cloud Shell •          Stage the qcow2 in ...

  Update Notice — OSWatcher Viability Across Oracle Linux Releases Since the original version of the post (2019) ( https://debapriyabiswas.blogspot.com/2019/04/install-oracle-oswatcher-as-linux.html ) , Oracle’s stance on OS-level performance monitoring has shifted significantly. Before following the installation steps below, review this viability matrix to determine whether OSWatcher is the right tool for your Oracle Linux version. OEL Version OSWatcher Viable? Recommended Tool Notes OEL 7 Yes OSWatcher (OSWbb) Fully documented. SysV init via chkconfig works. Systemd unit file also supported. Oracle recommends migrating to OEL 8 or 9. OEL 8 Yes (with caveats) OSWatcher or PCP OSWbb documented in official OEL 8 guide. RPM in ol8_addons. Requires net-tools. Use systemd, not SysV init. PCP also available. OEL 9 Not recommended ...