I forgot to say that even on Linux 4.14 I have to execute manually script while booting:
echo "- - -" > /sys/class/scsi_host/host1/scan So, only after this reset sata my laptop can see external HDD. Since Linux 4.15 resetting has no effect. I am analyzing how libata setup is working, so I will try to fix this issue later. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1783906 Title: Linux 4.15 and onwards fails to initialize some hard drives To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1783906/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs