On Thu, Jun 07, 2007 at 04:58:18PM -0500, Emilio Perea wrote:
> On Thu, Jun 07, 2007 at 07:50:24PM +0200, Otto Moerbeek wrote:
> > I have thinking a bit more about the problem, and it is very likely the
> > following scenario happened:
> >
> > 1. Kernel upgrade by source.
> >
> > 2. Reboot
> >
> > 3. Kernel reads old disklabel format and converts it in-memory to the
> > new v1 format.
> >
> > 4. Run a newfs using the old executable that does not know about the
> > new disklabel format. newfs writes the block and fragment size info
> > the old way, on a spot that is used in v1 labels to store the high 16
> > bits of the offset and size of a partition. The label is written with
> > version = 1, since the in-memory copy is v1.
> >
> > 5. Reboot, the kernel now sees a v1 disklabel with very high offset
> > and/or size, the new consistency code (which is now disabled) kicks in
> > and marks the partition as unused.
> >
> > So the lesson here is: keep userland and kernel in sync, or use a
> > snapshot to upgrade.
>
> I believe that's exactly what happened the first time. The catch is
> that kernel and userland were being built from the same cvs update, and
> I thought I was keeping them in sync. In this case it would probably
> have been better to skip the reboot between building the kernel and the
> userland.
It might have been better to start a whole new thread, but it seemed
logical to believe that the problems might be related. Using recent
snapshots, last night's insecurity output showed another disklabel
change:
======
sd1 diffs (-OLD +NEW)
======
--- /var/backups/disklabel.sd1.current Fri Apr 20 01:31:19 2007
+++ /var/backups/disklabel.sd1 Fri Jun 8 01:31:55 2007
@@ -1,4 +1,4 @@
-# Inside MBR partition 0: type A6 start 63 size 71681967
+disklabel: warning, DOS partition table with no valid OpenBSD partition
# /dev/rsd1c:
type: SCSI
disk: da0s1
*----------------------------------------------------------------------*
The full output of disklabel and dmesg follow, but as I was getting
ready to send it, I remembered that this same disk had problems with the
disklabel changes last October. For some reason it was shown as having
a FreeBSD disklabel. Most of correspondence regarding it was off-list,
but involved several developers and ended with Ken Westerback suggesting
some tests before setting it to OpenBSD.
This was fdisk then:
Disk: sd1 geometry: 4462/255/63 [71682030 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
------------------------------------------------------------------------
*0: A6 0 1 1 - 4461 254 63 [ 63: 71681967 ] OpenBSD
1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
3: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
This is now:
Disk: sd1 geometry: 4462/255/63 [71687370 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
------------------------------------------------------------------------
0: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
*3: A5 0 0 1 - 3 28 41 [ 0: 50000 ] FreeBSD
*----------------------------------------------------------------------*
It is currently working fine. Should I just change the partition ID to
A6, or is there something else I should try first?
*----------------------------------------------------------------------*
disklabel: warning, DOS partition table with no valid OpenBSD partition
# /dev/rsd1c:
type: SCSI
disk: da0s1
label:
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 4462
total sectors: 71687370
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # microseconds
track-to-track seek: 0 # microseconds
drivedata: 0
15 partitions:
# size offset fstype [fsize bsize cpg]
c: 71681967 63 unused 0 0 # Cyl 0*- 4461
d: 2104452 63 4.2BSD 2048 16384 132 # Cyl 0*- 130
e: 8385930 2104515 4.2BSD 2048 16384 328 # Cyl 131 - 652
f: 23294250 48387780 4.2BSD 2048 16384 328 # Cyl 3012 - 4461
h: 4112640 15936480 4.2BSD 2048 16384 256 # Cyl 992 - 1247
i: 2104515 40933620 4.2BSD 2048 16384 1 # Cyl 2548 - 2678
j: 18828180 20049120 4.2BSD 2048 16384 328 # Cyl 1248 - 2419
k: 5349645 43038135 4.2BSD 2048 16384 16 # Cyl 2679 - 3011
l: 2056320 38877300 4.2BSD 2048 16384 128 # Cyl 2420 - 2547
m: 2104515 10490445 4.2BSD 2048 16384 132 # Cyl 653 - 783
n: 2056320 12594960 4.2BSD 2048 16384 1 # Cyl 784 - 911
*----------------------------------------------------------------------*
OpenBSD 4.1-current (GENERIC) #255: Thu Jun 7 18:56:14 MDT 2007
[EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel(R) Pentium(R) 4 CPU 1500MHz ("GenuineIntel" 686-class) 1.50 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM
real mem = 804384768 (767MB)
avail mem = 766832640 (731MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 06/06/01, BIOS32 rev. 0 @ 0xffe90, SMBIOS
rev. 2.3 @ 0xf0450 (97 entries)
bios0: Dell Computer Corporation Precision 330
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
apm0: flags 30102 dobusy 0 doidle 1
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfbbb0/176 (9 entries)
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801BA LPC" rev 0x00)
pcibios0: PCI bus #2 is the last bus
bios0: ROM list: 0xc0000/0xa800 0xca800/0x5800
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82850 Host" rev 0x02
ppb0 at pci0 dev 1 function 0 "Intel 82850/82860 AGP" rev 0x02
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "NVIDIA Vanta" rev 0x15
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ppb1 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0x04
pci2 at ppb1 bus 2
fxp0 at pci2 dev 8 function 0 "Intel 8255x" rev 0x05, i82558: irq 10, address
00:90:27:86:21:9c
inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 0
ahc0 at pci2 dev 10 function 0 "Adaptec AHA-2940U2 U2" rev 0x00: irq 11
scsibus0 at ahc0: 16 targets
sd0 at scsibus0 targ 0 lun 0: <SEAGATE, ST39102LW, 0005> SCSI2 0/direct fixed
sd0: 8683MB, 6962 cyl, 12 head, 212 sec, 512 bytes/sec, 17783240 sec total
sd1 at scsibus0 targ 2 lun 0: <SEAGATE, ST336705LW, 5063> SCSI3 0/direct fixed
sd1: 35003MB, 19036 cyl, 8 head, 470 sec, 512 bytes/sec, 71687370 sec total
cd0 at scsibus0 targ 4 lun 0: <YAMAHA, CRW8824S, 1.00> SCSI2 5/cdrom removable
cd1 at scsibus0 targ 6 lun 0: <TEAC, CD-ROM CD-532S, 1.0A> SCSI2 5/cdrom
removable
ichpcib0 at pci0 dev 31 function 0 "Intel 82801BA LPC" rev 0x04: 24-bit timer
at 3579545Hz
pciide0 at pci0 dev 31 function 1 "Intel 82801BA IDE" rev 0x04: DMA, channel 0
wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <IC35L040AVER07-0>
wd0: 16-sector PIO, LBA, 38166MB, 78165360 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
pciide0: channel 1 ignored (disabled)
uhci0 at pci0 dev 31 function 2 "Intel 82801BA USB" rev 0x04: irq 11
ichiic0 at pci0 dev 31 function 3 "Intel 82801BA SMBus" rev 0x04: irq 10
iic0 at ichiic0
uhci1 at pci0 dev 31 function 4 "Intel 82801BA USB" rev 0x04: irq 9
auich0 at pci0 dev 31 function 5 "Intel 82801BA AC97" rev 0x04: irq 10, ICH2
AC97
ac97: codec id 0x41445360 (Analog Devices AD1885)
ac97: codec features headphone, Analog Devices Phat Stereo
audio0 at auich0
isa0 at ichpcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
usb0 at uhci0: USB revision 1.0
uhub0 at usb0: Intel UHCI root hub, rev 1.00/1.00, addr 1
usb1 at uhci1: USB revision 1.0
uhub1 at usb1: Intel UHCI root hub, rev 1.00/1.00, addr 1
biomask ef65 netmask ef65 ttymask ffe7
pctr: user-level cycle counter enabled
mtrr: Pentium Pro MTRR support
softraid0 at root
ahc0: target 0 using 16bit transfers
ahc0: target 0 synchronous at 20.0MHz, offset = 0xf
ahc0: target 2 using 16bit transfers
ahc0: target 2 synchronous at 20.0MHz, offset = 0x3f
dkcsum: sd0 matches BIOS drive 0x80
dkcsum: wd0 matches BIOS drive 0x81
root on sd0a swap on sd0b dump on sd0b
*----------------------------------------------------------------------*
