This is the first test that boots the root disk without an initrd. Indeed booting it with debug shows that the kernel detects no hard disks then (in particular not /dev/sda1), thus the boot fails like that.
With 4.4, or with 4.8 and booting with an initrd it detects the sda hard drive again: [ 2.374065] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14 [ 2.383381] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15 [ 2.563557] ata2.01: NODEV after polling detection [ 2.583452] ata1.01: NODEV after polling detection [ 2.600806] ata1.00: ATA-7: QEMU HARDDISK, 2.5+, max UDMA/100 [ 2.617551] ata1.00: 819200 sectors, multi 16: LBA48 [ 2.632337] ata2.00: ATAPI: QEMU DVD-ROM, 2.5+, max UDMA/100 [ 2.649576] ata2.00: configured for MWDMA2 [ 2.662298] ata1.00: configured for MWDMA2 [ 2.671218] scsi 0:0:0:0: Direct-Access ATA QEMU HARDDISK 2.5+ PQ: 0 ANSI: 5 I think this is due to this config change: $ grep CONFIG_ATA= config-4.* config-4.4.0-9136-generic:CONFIG_ATA=y config-4.8.0-14-generic:CONFIG_ATA=m Which would by and large mean that it is now impossible to boot without an initrd. I don't think this is desirable, as it could actually lead to regressions on existing machines. ** Summary changed: - 4.8 update breaks systemd's TEST-08-ISSUE-2730 upstream test + 4.8/amd64 dropped CONFIG_ATA=y (breaks systemd's TEST-08-ISSUE-2730 upstream test) ** Summary changed: - 4.8/amd64 dropped CONFIG_ATA=y (breaks systemd's TEST-08-ISSUE-2730 upstream test) + 4.8 dropped CONFIG_ATA=y (breaks systemd's TEST-08-ISSUE-2730 upstream test) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1626394 Title: 4.8 dropped CONFIG_ATA=y (breaks systemd's TEST-08-ISSUE-2730 upstream test) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626394/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
