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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: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
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hfs+ filesystems fail reading / writing large files
https://bugs.launchpad.net/bugs/1891768
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