Public bug reported: I noticed a problem reading hfs+ partitions on a USB flash drive after I installed Ubuntu 20.04 on two laptop machines. I have a Mini Mac that I share files via an USB flash drive formatted with hfs+ from the laptops with Ubuntu installed. I had no issues with Ubuntu Mate 18.10.
I noticed that very large files, typicality larger than 100 MB, would have read errors or sometimes have a zero file size. One particular file about 500MB fails nearly every time. Other files, down to about 100MB fail sometimes. I bought a new USB flash drive, but have the same failures on that. I have an identical flash drive formatted with ext4 which has no issues. I'm currently booting to Ubuntu Mate 18.10 to write the hfs+ USB flash drive. 1007 ceres ~ cat /proc/version_signature Ubuntu 5.4.0-42.46-generic 5.4.44 1000 ceres ~ lsb_release -rd Description: Ubuntu 20.04.1 LTS Release: 20.04 1005 admin@ceres ~ sudo lspci -vnvn > lspci-vnvn.log pcilib: sysfs_read_vpd: read failed: Input/output error pcilib: sysfs_read_vpd: read failed: Input/output error ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891768 Title: hfs+ filesystems fail reading / writing large files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1891768/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs