{"record":{"id":"0bd038a119871a32","repo":"Hmbown/CodeWhale","slug":"loaded-image-mapping-for-updater-marker-has-no-fil","errorCode":null,"errorMessage":"loaded-image mapping for updater marker has no file inode","messagePattern":"loaded-image mapping for updater marker has no file inode","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/cli/src/update.rs","lineNumber":356,"sourceCode":"            .context(\"loaded-image mapping is missing permissions\")?;\n        let _offset = fields\n            .next()\n            .context(\"loaded-image mapping is missing its file offset\")?;\n        let device = fields\n            .next()\n            .context(\"loaded-image mapping is missing its device\")?;\n        let inode = fields\n            .next()\n            .context(\"loaded-image mapping is missing its inode\")?\n            .parse::<u64>()\n            .context(\"loaded-image mapping has an invalid inode\")?;\n        let path = fields.collect::<Vec<_>>().join(\" \");\n\n        if permissions.as_bytes().get(2) != Some(&b'x') {\n            bail!(\"loaded-image mapping for updater marker is not executable\");\n        }\n        if inode == 0 {\n            bail!(\"loaded-image mapping for updater marker has no file inode\");\n        }\n        let (device_major, device_minor) = device\n            .split_once(':')\n            .context(\"loaded-image mapping has an invalid device\")?;\n        let device_major = u32::from_str_radix(device_major, 16)\n            .context(\"loaded-image mapping has an invalid device major number\")?;\n        let device_minor = u32::from_str_radix(device_minor, 16)\n            .context(\"loaded-image mapping has an invalid device minor number\")?;\n        if path.is_empty() {\n            bail!(\"loaded-image mapping for updater marker has no pathname\");\n        }\n\n        let mapping = AndroidImageMapping {\n            start,\n            end,\n            device_major,\n            device_minor,\n            inode,","sourceCodeStart":338,"sourceCodeEnd":374,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/0c42157ee52f9d55af2b506d71b46249910f77d3/crates/cli/src/update.rs#L338-L374","documentation":"The /proc/self/maps row containing the updater marker reports inode 0, i.e. it is an anonymous mapping with no file backing. The Android updater requires file-backed identity (device + inode) so it can prove which file on disk it is about to replace; an anonymous image cannot be updated in place, so it refuses.","triggerScenarios":"Android self-update when the running image was created without a real file: executed from a memfd (memfd_create + fexecve), copied into anonymous memory by proot/sandboxes, or mapped by loaders that use anonymous copies.","commonSituations":"Running the CLI out of a memfd/ramdisk, single-file launchers that decompress-and-exec in memory, proot/Lind-style sandboxes on Android.","solutions":["Install the binary to a real filesystem path (e.g. /data/local/tmp or the documented install dir) and exec it from there","Stop launching through memfd-based single-file bundlers or in-memory exec helpers","If neither applies, report with /proc/self/maps output for the marker's row"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"Treat the error as terminal for in-place self-update: catch it, log the maps row details, and offer a manual download-and-replace path to the user.","preventionTips":["Never execute the CLI from memfd or in-memory launchers if you need self-update","Install to and run from a real filesystem path","Avoid proot/sandboxes that anonymize the image mapping"],"tags":["android","proc-maps","self-update","anonymous-mapping"],"backgroundTag":"proc-maps-anonymous-mapping","analyzedSha":"0c42157ee52f9d55af2b506d71b46249910f77d3","analyzedAt":"2026-08-20T21:50:45.477Z","schemaVersion":2},"datasetVersion":"2026-08-22T04:17:13.399Z"}