And now for the question..
I have a test server that is being used to test a 4.4-REL to 4.8-STABLE upgrade, and I've found the system will no longer boot unless I load a saved 4.4-REL kernel. The error I get is along the lines of:
Mounting root from ufs:/dev/ad4s1a Root mount failed: 16
At first I got this error using a custom kernel configuration known as WWW, but after getting this error I built a new kernel based on GENERIC:
# cd /usr/src # make update # make buildkernel # make installkernel # reboot
Per /usr/src/UPDATING there was a change in the ATA drive at 4.5-REL, but it mentioned running mergemaster to create the new devices, and according to /usr/src/Makefile I shouldn't do that until I get past the current stage (which is where I am stuck):
(/usr/src/Makefile comments) 1. cd /usr/src 2. make buildworld 3. make buildkernel 4. make installkernel 5. reboot 6. mergemaster -p
This machine does have the Promise RAID-1 IDE controller that is built into a lot motherboards these days. Here is my dmesg output from this server on a successful boot:
ar0: 39266MB <ATA RAID1 array> [5005/255/63] subdisks: ad4: 39266MB <IC35L040AVER07-0> [79780/16/63] at ata2-master UDMA100 ad6: 39266MB <IC35L040AVER07-0> [79780/16/63] at ata3-master UDMA100
However, this test machine mimics how the web servers were setup, and they do not use /dev/ar, but instead use /dev/ad0:
# cat /etc/fstab # Device Mountpoint FStype Options Dump Pass# /dev/ad4s1b none swap sw 0 0 /dev/ad4s1a / ufs rw 1 1 /dev/ad4s1f /usr ufs rw 2 2 /dev/ad4s1e /var ufs rw 2 2 /dev/acd0c /cdrom cd9660 ro,noauto 0 0 proc /proc procfs rw 0 0
I am thinking that in 4.5-REL or newer (we are trying to upgrade to 4.8) that things might have changed? Again, /usr/src/UPDATING mentions some changes to the ATA code, but nothing specific to our configuration.
Any ideas here?
Following are the partition and disklabel information for /dev/ad4 and /dev/ar0:
# fdisk /dev/ad4 ******* Working on device /dev/ad4 ******* parameters extracted from in-core disklabel are: cylinders=5005 heads=255 sectors/track=63 (16065 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1 parameters to be used for BIOS calculations are: cylinders=5005 heads=255 sectors/track=63 (16065 blks/cyl)
Media sector size is 512 Warning: BIOS sector numbering starts with sector 1 Information from DOS bootblock is: The data for partition 1 is: sysid 165,(FreeBSD/NetBSD/386BSD) start 63, size 80405262 (39260 Meg), flag 80 (active) beg: cyl 0/ head 1/ sector 1; end: cyl 1023/ head 254/ sector 63 The data for partition 2 is: <UNUSED> The data for partition 3 is: <UNUSED> The data for partition 4 is: <UNUSED>
# disklabel -r ad4s1 # /dev/ad4s1c: type: ESDI disk: ad4s1 label: flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 255 sectors/cylinder: 16065 cylinders: 5004 sectors/unit: 80405262 rpm: 3600 interleave: 1 trackskew: 0 cylinderskew: 0 headswitch: 0 # milliseconds track-to-track seek: 0 # milliseconds drivedata: 0
8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 204800 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 12*) b: 1056032 204800 swap # (Cyl. 12*- 78*) c: 80405262 0 unused 0 0 # (Cyl. 0 - 5004*) e: 40960 1260832 4.2BSD 1024 8192 16 # (Cyl. 78*- 81*) f: 79103470 1301792 4.2BSD 1024 8192 16 # (Cyl. 81*- 5004*)
# fdisk /dev/ar0 ******* Working on device /dev/ar0 ******* parameters extracted from in-core disklabel are: cylinders=5005 heads=255 sectors/track=63 (16065 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1 parameters to be used for BIOS calculations are: cylinders=5005 heads=255 sectors/track=63 (16065 blks/cyl)
Media sector size is 512 Warning: BIOS sector numbering starts with sector 1 Information from DOS bootblock is: The data for partition 1 is: sysid 165,(FreeBSD/NetBSD/386BSD) start 63, size 80405262 (39260 Meg), flag 80 (active) beg: cyl 0/ head 1/ sector 1; end: cyl 1023/ head 254/ sector 63 The data for partition 2 is: <UNUSED> The data for partition 3 is: <UNUSED> The data for partition 4 is: <UNUSED>
# disklabel -r ar0 # /dev/ar0c: type: ESDI disk: ad4s1 label: flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 255 sectors/cylinder: 16065 cylinders: 5004 sectors/unit: 80405262 rpm: 3600 interleave: 1 trackskew: 0 cylinderskew: 0 headswitch: 0 # milliseconds track-to-track seek: 0 # milliseconds drivedata: 0
8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 204800 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 12*) b: 1056032 204800 swap # (Cyl. 12*- 78*) c: 80405262 0 unused 0 0 # (Cyl. 0 - 5004*) e: 40960 1260832 4.2BSD 1024 8192 16 # (Cyl. 78*- 81*) f: 79103470 1301792 4.2BSD 1024 8192 16 # (Cyl. 81*- 5004*)
--- Dustin Puryear <[EMAIL PROTECTED]> Puryear Information Technology, LLC <http://www.puryear-it.com> Providing expertise in the management, integration, and security of Windows and UNIX systems, networks, and applications.
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