On 11/02/13 14:18, mia wrote: > Hi All, > > I have a system with a sata disk or the OS and a areca pcie raid card > with 4 1.5 Tb drives in a raid5 configuration. The raid has data on it > and the OS drive was blank. > > I was doing a fresh install on the OS, unfortuntately I forgot that the > OpenBSD install sees the OS drive as sd1. I chose sd0 and got some > message, wasn't on a console so didn't capture it, about drive too large > for fdisk. I went on and then saw the number of sectors and realized > immediately I chose the wrong disk. I did a control+C, rebooted and > then installed on the sd1 drive. > > Now that i'm back in the OS I went to mount the raid and got a device > not configured message for /dev/sd0a. I did a disklable -E sd0 and to > my horror there is no a partition left on the raid. :-( > > Is there any way to get this back? Can I simply use disklable to use > all space on the drive to recreate the mbr and my data will be > available? I'm desperate, ANY help will be GREATLY appreciated.
ok, if I followed this, you changed the MBR with fdisk -- AND NOTHING ELSE. IF that's true...and you know what and where partitions were, yes, you are in not bad shape. I'd start by using fdisk to recreate the OpenBSD partition as it was (hopefully, whole disk. probably starting at either sector 64 (if "newer") or sector 63 (if "older"). Do that, reboot (I'm not sure that's needed, but it prolongs the suspense), and you should see your disklabel partitions just come back from the not-quite-dead. If you aren't sure about your starting partition, try both 64 and 63, see which one brings back your disklabel. A few more tips here: http://www.openbsd.org/faq/faq14.html#OhBugger Good luck. Nick. > Thanks in advance, > > Aaron > > # dmesg > OpenBSD 5.4 (GENERIC.MP) #41: Tue Jul 30 15:30:02 MDT 2013 > dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP > real mem = 2129526784 (2030MB) > avail mem = 2065170432 (1969MB) > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 2.51 @ 0x7feeb000 (33 entries) > bios0: vendor Phoenix Technologies LTD version "6.00" date 12/29/2010 > bios0: Supermicro PDSM4+ > acpi0 at bios0: rev 0 > acpi0: sleep states S0 S1 S4 S5 > acpi0: tables DSDT FACP MCFG APIC BOOT SSDT SSDT SSDT SSDT SSDT SSDT > SSDT SSDT SSDT > acpi0: wakeup devices PXHA(S5) PXHB(S5) DEV3(S5) EXP1(S5) EXP5(S5) > EXP6(S5) PCIB(S5) KBC0(S1) MSE0(S1) COM1(S5) COM2(S5) USB1(S4) USB2(S4) > USB3(S4) USB4(S4) EUSB(S4) > acpitimer0 at acpi0: 3579545 Hz, 24 bits > acpimcfg0 at acpi0 addr 0xf0000000, bus 0-19 > acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat > cpu0 at mainbus0: apid 0 (boot processor) > cpu0: Intel(R) Xeon(R) CPU 3060 @ 2.40GHz, 2400.10 MHz > cpu0: > FPU,VME,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,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,NXE,LONG,LAHF,PERF > cpu0: 4MB 64b/line 16-way L2 cache > cpu0: smt 0, core 0, package 0 > cpu0: apic clock running at 266MHz > cpu1 at mainbus0: apid 1 (application processor) > cpu1: Intel(R) Xeon(R) CPU 3060 @ 2.40GHz, 2399.74 MHz > cpu1: > FPU,VME,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,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,NXE,LONG,LAHF,PERF > cpu1: 4MB 64b/line 16-way L2 cache > cpu1: smt 0, core 1, package 0 > ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins > ioapic1 at mainbus0: apid 3 pa 0xfecc0000, version 20, 24 pins > ioapic2 at mainbus0: apid 4 pa 0xfecc0400, version 20, 24 pins > acpiprt0 at acpi0: bus 0 (PCI0) > acpiprt1 at acpi0: bus 2 (PXHA) > acpiprt2 at acpi0: bus 3 (PXHB) > acpiprt3 at acpi0: bus 10 (DEV3) > acpiprt4 at acpi0: bus 14 (EXP1) > acpiprt5 at acpi0: bus 18 (EXP5) > acpiprt6 at acpi0: bus 19 (EXP6) > acpiprt7 at acpi0: bus 20 (PCIB) > acpicpu0 at acpi0 > acpicpu1 at acpi0 > acpibtn0 at acpi0: PWRB > ipmi at mainbus0 not configured > pci0 at mainbus0 bus 0 > pchb0 at pci0 dev 0 function 0 "Intel E7230 Host" rev 0xc0 > ppb0 at pci0 dev 1 function 0 "Intel E7230 PCIE" rev 0xc0: msi > pci1 at ppb0 bus 1 > ppb1 at pci1 dev 0 function 0 "Intel 6700PXH PCIE-PCIX" rev 0x09 > pci2 at ppb1 bus 2 > "Intel IOxAPIC" rev 0x09 at pci1 dev 0 function 1 not configured > ppb2 at pci1 dev 0 function 2 "Intel 6700PXH PCIE-PCIX" rev 0x09 > pci3 at ppb2 bus 3 > "Intel IOxAPIC" rev 0x09 at pci1 dev 0 function 3 not configured > ppb3 at pci0 dev 3 function 0 "Intel 82975X PCIE" rev 0xc0: msi > pci4 at ppb3 bus 10 > ppb4 at pci4 dev 0 function 0 "Intel IOP332 PCIE-PCIX" rev 0x07 > pci5 at ppb4 bus 11 > arc0 at pci5 dev 14 function 0 "Areca ARC-1210" rev 0x00: apic 2 int 18 > arc0: 4 ports, 256MB SDRAM, firmware V1.47 2009-07-02 > scsibus0 at arc0: 16 targets > sd0 at scsibus0 targ 0 lun 0: <Areca, ARC-1210-VOL#00, R001> SCSI3 > 0/direct fixed eui.0004d927fffff800 > sd0: 4291533MB, 512 bytes/sector, 8789061120 sectors > ppb5 at pci4 dev 0 function 2 "Intel IOP332 PCIE-PCIX" rev 0x07 > pci6 at ppb5 bus 12 > ppb6 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x01: msi > pci7 at ppb6 bus 14 > ppb7 at pci0 dev 28 function 4 "Intel 82801G PCIE" rev 0x01: msi > pci8 at ppb7 bus 18 > em0 at pci8 dev 0 function 0 "Intel 82573E" rev 0x03: msi, address > 00:30:48:8c:4e:80 > ppb8 at pci0 dev 28 function 5 "Intel 82801G PCIE" rev 0x01: msi > pci9 at ppb8 bus 19 > em1 at pci9 dev 0 function 0 "Intel 82573L" rev 0x00: msi, address > 00:30:48:8c:4e:81 > uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x01: apic 2 int 23 > uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x01: apic 2 int 19 > uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x01: apic 2 int 18 > uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x01: apic 2 int 16 > ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x01: apic 2 int 23 > usb0 at ehci0: USB revision 2.0 > uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 > ppb9 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xe1 > pci10 at ppb9 bus 20 > vga1 at pci10 dev 4 function 0 "ATI ES1000" rev 0x02 > radeondrm0 at vga1: apic 2 int 16 > drm0 at radeondrm0 > wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) > wsdisplay0: screen 1-5 added (80x25, vt100 emulation) > pcib0 at pci0 dev 31 function 0 "Intel 82801GB LPC" rev 0x01 > pciide0 at pci0 dev 31 function 1 "Intel 82801GB IDE" rev 0x01: DMA, > channel 0 configured to compatibility, channel 1 configured to compatibility > pciide0: channel 0 disabled (no drives) > pciide0: channel 1 disabled (no drives) > ahci0 at pci0 dev 31 function 2 "Intel 82801GR AHCI" rev 0x01: msi, AHCI 1.1 > scsibus1 at ahci0: 32 targets > sd1 at scsibus1 targ 0 lun 0: <ATA, ST3160815AS, 3.CH> SCSI3 0/direct > fixed t10.ATA_ST3160815AS_5RX07MEK_ > sd1: 152627MB, 512 bytes/sector, 312581808 sectors > cd0 at scsibus1 targ 1 lun 0: <ATAPI, iHAS124 B, AL08> ATAPI 5/cdrom > removable > ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x01: apic 2 > int 19 > iic0 at ichiic0 > lm1 at iic0 addr 0x2d: W83627HF > wbng0 at iic0 addr 0x2f: w83793g > spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM ECC PC2-5300CL5 > spdmem1 at iic0 addr 0x52: 1GB DDR2 SDRAM ECC PC2-5300CL5 > usb1 at uhci0: USB revision 1.0 > uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > usb2 at uhci1: USB revision 1.0 > uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > usb3 at uhci2: USB revision 1.0 > uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > usb4 at uhci3: USB revision 1.0 > uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > isa0 at pcib0 > isadma0 at isa0 > com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo > com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo > 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 > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > wbsio0 at isa0 port 0x2e/2: W83627HF rev 0x41 > lm2 at wbsio0 port 0x290/8: W83627HF > fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 > mtrr: Pentium Pro MTRR support > vscsi0 at root > scsibus2 at vscsi0: 256 targets > softraid0 at root > scsibus3 at softraid0: 256 targets > root on sd1a (6e74d7f65ecaa74a.a) swap on sd1b dump on sd1b
