chmod: cannot access 'root.img': No such file or directory (mkosi v15+)

[yizhanglinux]

Hello

Pls help check this error, during build process, thanks

DISTRO: Fedora release 40 (Rawhide) with 6.5.0-0.rc6.20230818git0e8860d2125f.47.fc40.x86_64
Linux: latest linux tree: https://github.com/torvalds/linux.git
mkosi: mkosi 15.1

running: mkosi -i -f build
‣ Removing output files…
‣ Building default image
Create subvolume '/root/git/linux/qbuild/.mkosi-tmp7dgrxv9y/root'
‣  Mounting image…
‣   Copying cached trees
Create a snapshot of '/root/git/linux/qbuild/mkosi.cache/fedora~40/image.cache' in '/root/git/linux/qbuild/.mkosi-tmp7dgrxv9y/root'
‣   Copying in extra file trees…
‣   Running postinstall script…
+ [[ ! -d /root/ndctl ]]
+ exit 0
‣   Generating system users
‣   Applying presets…
‣   Generating hardware database
No hwdb files found, skipping.
‣   Recording packages in manifest…
‣  Unmounting image…
‣  Generating disk image
No machine ID set, using randomized partition UUIDs.
Pre-populating btrfs filesystem of partition 10-root.conf twice to calculate minimal partition size
Populating btrfs filesystem.
Successfully populated btrfs filesystem.
btrfs-progs v6.3.2
See https://btrfs.readthedocs.io for more information.

NOTE: several default settings have changed in version 5.15, please make sure
      this does not affect your deployments:
      - DUP for metadata (-m dup)
      - enabled no-holes (-O no-holes)
      - enabled free-space-tree (-R free-space-tree)

Rootdir from:       /var/tmp/.#repart8f24a5ac7fa55719
  Shrink:           no
Label:              root-x86-64
UUID:               bcebc2c4-d003-4c52-bbd6-d5644151fd81
Node size:          16384
Sector size:        4096
Filesystem size:    1.00TiB
Block group profiles:
  Data:             single            8.02GiB
  Metadata:         DUP               1.00GiB
  System:           DUP               8.00MiB
SSD detected:       no
Zoned device:       no
Incompat features:  extref, skinny-metadata, no-holes, free-space-tree
Runtime features:   free-space-tree
Checksum:           crc32c
Number of devices:  1
Devices:
   ID        SIZE  PATH
    1     1.00TiB  /var/tmp/.#repartd9afafd37efe36ac

/var/tmp/.#repartd9afafd37efe36ac successfully formatted as btrfs (label "root-x86-64", uuid bcebc2c4-d003-4c52-bbd6-d5644151fd81)
Minimal partition size of btrfs filesystem of partition 10-root.conf is 8.4G
btrfs-progs v6.3.2
See https://btrfs.readthedocs.io for more information.

NOTE: several default settings have changed in version 5.15, please make sure
      this does not affect your deployments:
      - DUP for metadata (-m dup)
      - enabled no-holes (-O no-holes)
      - enabled free-space-tree (-R free-space-tree)

Rootdir from:       /var/tmp/.#repart8f24a5ac7fa55719
  Shrink:           no
Label:              root-x86-64
UUID:               4f743d66-1aee-492a-ad0c-73d7587d7fa7
Node size:          16384
Sector size:        4096
Filesystem size:    8.48GiB
Block group profiles:
  Data:             single            7.95GiB
  Metadata:         DUP             256.00MiB
  System:           DUP               8.00MiB
SSD detected:       no
Zoned device:       no
Incompat features:  extref, skinny-metadata, no-holes, free-space-tree
Runtime features:   free-space-tree
Checksum:           crc32c
Number of devices:  1
Devices:
   ID        SIZE  PATH
    1     8.48GiB  /var/tmp/.#repartd9afafd37efe36ac

/var/tmp/.#repartd9afafd37efe36ac successfully formatted as btrfs (label "root-x86-64", uuid 4f743d66-1aee-492a-ad0c-73d7587d7fa7)
Automatically determined minimal disk image size as 8.4G.
Sized '/root/git/linux/qbuild/.mkosi-tmp7dgrxv9y/staging/image.raw' to 8.4G.
Applying changes.
Wiped block device.
Discarded entire block device.
Successfully wiped file system signatures from future partition 0.
Copying in '/var/tmp/.#repartd9afafd37efe36ac' (8.4G) on block level into future partition 0.
Copying in of '/var/tmp/.#repartd9afafd37efe36ac' on block level completed.
Adding new partition 0 to partition table.
Writing new partition table.
All done.
‣  Generating disk image
No machine ID set, using randomized partition UUIDs.
Automatically determined minimal disk image size as 8.4G, current image size is 8.4G.
File '/root/git/linux/qbuild/.mkosi-tmp7dgrxv9y/staging/image.raw' already is of requested size or larger, not growing. (8.4G >= 8.4G)
No changes.
‣  Saving manifest image.manifest
‣  /root/git/linux/qbuild/image size is 8.5G, consumes 5.7G.
chmod: cannot access 'root.img': No such file or directory

[yizhanglinux]

From [1], seem it was due to the changes in latest mkosi

[1]
systemd/mkosi#1852

[stellarhopper]

This is probably not a mkosi problem - might be another mkosi change that we need to comprehend. I've not updated to mkosi 15.x yet, Fedora 38 is only on mkosi-14. Will need to look into it a more when I do get the update.

[marc-hb]

mkosi: mkosi 15.1

Support for mkosi v15+ is coming, please help test #80

DISTRO: Fedora release 40 (Rawhide) with 6.5.0-0.rc6.20230818git0e8860d2125f.47.fc40.x86_64
Linux: latest linux tree: https://github.com/torvalds/linux.git
mkosi: mkosi 15.1

As of today, Fedora 40 offers a choice between mkosi14 and mkosi v22

[marc-hb]

Please:

• upgrade to the latest run_qemu
• reproduce
• provide detailed steps and versions
• re-open this issue

Warnings:

• Support for mkosi v15+ still has issues, right now: mkosi v15+: mkosi.extra/boot/ files missing in /boot, breaks incremental update_existing_rootfs() #88. mkosi v14- should Just Work.
• There are big differences between -r img, -r wipe, etc., check run_qemu.sh --help