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| -rw-r--r-- | image-builder/README | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/image-builder/README b/image-builder/README index 5910497..a1ea0c4 100644 --- a/image-builder/README +++ b/image-builder/README @@ -26,7 +26,19 @@ Two disks, and which is which matters: a system disk (80 GB, also holding the registry store) and a separate docker volume (160 GB) for images and build scratch. See fstab.example. -1. Install docker; enable the daemon. +1. Install docker; enable the daemon. Then add to /etc/default/docker + (rc.docker sources it before starting dockerd): + unset XDG_RUNTIME_DIR + + A dockerd restarted from a root login shell inherits + XDG_RUNTIME_DIR=/run/user/0, and BuildKit's overlay differ puts its temp + dir there. elogind removes that dir at logout, so every later image + export fails. dockerd logs "failed to create temp dir: stat /run/user/0: + no such file or directory", and the build prints a misleading + "failed to open writer: ref moby/1/... locked ... unavailable". Retrying + does not help; only a restart from a clean env does. This stalled the + -current full image from 2026-09-23 to 09-25. Check a running daemon with: + tr '\0' '\n' < /proc/$(pidof dockerd)/environ | grep XDG_RUNTIME_DIR 2. NFS-mount the two NAS trees read-only, named to match: /mnt/nas/slackware64-current -> -current mirror tree |