We can also perform a kernel bisect to identify the commit that introduced this regression.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1621699 Title: Upgrade to 16.04.1 LTS incorrect disk enumeration Status in linux package in Ubuntu: Confirmed Bug description: My system had this disk configuration running 14.04 without issue: 1 SATA SSD ext4 on internal 6Gb SATA port was /dev/sda with 14.04 OS installed. 3 SATA disks (zfs raidz) on internal 3Gb SATA ports was /dev/sd[bcd] 8 SATA disks ext4 on LSI Megaraid 9240-8i in IT mode was /dev/sd[efghijkl] Upgrade to 16.04.1 LTS now looks like this: 1 SATA SSD ext4 on internal 6Gb SATA port is now /dev/sdi with 16.04.1 installed. 3 SATA disks (zfs raidz) on internal 3Gb SATA ports is now /dev/sd[jkl] 8 SATA disks ext4 on LSI Megaraid 9240-8i in IT mode are /dev/sd[abcdefgh] The sytem boots, but any utils e.g. smartd, hdparm etc. referencing /dev/sda are now fubared. Booting a 12.04 LiveCD enumerates the disks correctly. Booting a 16.04 LiveCD enumerates the disks incorrectly as described above. I'm pointing the blame for this at mpt3sas.ko (kernel module loaded for the LSI hba) which was previously mpt2sas.ko This bug is completely repeatable on every boot. See attached: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1621699/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
