Sadly (as mentioned by psusi in comment 12) the kernel's Atari partition detection is lax and triggers on lots of random data scenarios when disks are big. https://github.com/axboe/fio/issues/1942#issuecomment-3066162322 gathers links to other "ADHI Atari partitions being created on disks containing random data" discussions.
The problem was bad enough that Ubuntu disabled Atari partition support in its *cloud* kernels in 2020 (see bug https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1908264 ). Other distros such as Fedora have disabled Atari partition support for a long time (here's a link to a Fedora 13 kernel config showing CONFIG_ATARI_PARTITION not being set: https://src.fedoraproject.org/rpms/kernel/blob/f13/f/config-generic ). Given how few people need Atari partition support perhaps Ubuntu should just disable it in all its kernels? Because this issue has expired perhaps this is not the place to request that... ** Bug watch added: github.com/axboe/fio/issues #1942 https://github.com/axboe/fio/issues/1942 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1531404 Title: nonexistent partition in /dev, & lsblk/disk util misbehaving with randomized disks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1531404/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
