N00b starting his venture into Linux by building a dual-boot on a MacBook Pro 5,1 (OSX 10.9.5) with Linux 18.04 LTS. Formatted partitions, Installation from bootable EFI installation flash drive (pardon me if I’m not using the correct terminology – started this last week) went smooth. Installed b43 drivers for broadcomm wifi. Installed REFINDer. System and apps appeared to work well – until I tried saving documents.
Documents created in LibreWrite and the packaged Text Editor (I did not try vi or other command line editor) would hang/freeze the application, requiring quitting the program in some cases, requiring command line killall in others. The Save, Save As, and export options in the GUI menus all had the same result.
Syslog indicated apparmor was denying access to cgroup and wchan (I think those were the directories). My well-versed engineer friend wove some Linux magic and managed to allow access (it was not a matter of permissions, and he couldn’t quite explain what he did – my depth is still too shallow). In spite of his best efforts, the same processes would still hang the applications whenever it tried to create a new file. we were able to make new directories in the GUI. There was also no issue in copying items.
apt updates, etc, did not fix the issue.
The problem seems to be strictly creating new files from applications and writing them to the drive. I went through the same process using both SSD and HDD drives with the same result, just to eliminate potential drive issues.
Ultimately, I repartitioned my exf4 to allow for a swap space and installed Ubuntu 16 LTS. I now have no problems saving, duplicating, or reformatting files from applications.
My question – has anybody else run across this issue with 18.04 and MacBookPro 5,1? Both my engineer friend and I are under the assumption that there is some incompatibility between the 5,1 hardware (which is now almost a decade old) and the current 18.04 LTS. Any suggestions as to what could be causing this?