[Qemu-devel] [Bug 618533] Re: OpenSolaris guest fails to see the Solaris partitions of a physical disk in qemu-kvm-9999 (GIT)

[devsk]

I ran qemu from command line with debugcon:

# /usr/bin/qemu-system-x86_64 --enable-kvm -M pc-0.12 -enable-kvm -m 1024 -smp 
2,sockets=2,cores=1,threads=1 -name opensolaris -uuid 
7efc6da0-e40f-a1c5-0e85-763dc7ff209c -nodefaults -rtc base=localtime -boot dc 
-device lsi,id=scsi0,bus=pci.0,addr=0x6 -drive 
file=Korona4.4.5.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw
 -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive 
file=/dev/sdd,if=none,id=drive-ide0-0-0,format=raw -device 
ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0  -usb -device 
usb-tablet,id=input0 -sdl -vga vmware -chardev stdio,id=seabios -device 
isa-debugcon,iobase=0x402,chardev=seabios
Start bios (version pre-0.6.1-20100713_085324-titi)
Ram Size=0x40000000 (0x0000000000000000 high)
CPU Mhz=2814
PCI: pci_bios_init_bus_rec bus = 0x0
PIIX3/PIIX4 init: elcr=00 0c
PCI: bus=0 devfn=0x00: vendor_id=0x8086 device_id=0x1237
PCI: bus=0 devfn=0x08: vendor_id=0x8086 device_id=0x7000
PCI: bus=0 devfn=0x09: vendor_id=0x8086 device_id=0x7010
region 4: 0x0000c000
PCI: bus=0 devfn=0x0a: vendor_id=0x8086 device_id=0x7020
region 4: 0x0000c020
PCI: bus=0 devfn=0x0b: vendor_id=0x8086 device_id=0x7113
PCI: bus=0 devfn=0x10: vendor_id=0x15ad device_id=0x0405
region 0: 0x0000c040
region 1: 0xf0000000
region 2: 0xf1000000
PCI: bus=0 devfn=0x30: vendor_id=0x1000 device_id=0x0012
region 0: 0x0000c100
region 1: 0xf1010000
region 2: 0xf1012000
Found 2 cpu(s) max supported 2 cpu(s)
MP table addr=0x000fdbe0 MPC table addr=0x000fdbf0 size=244
SMBIOS ptr=0x000fdbc0 table=0x3ffffec0
ACPI tables: RSDP=0x000fdb90 RSDT=0x3fffde10
Scan for VGA option rom
Running option rom at c000:0003
Turning on vga text mode console
Starting SeaBIOS (version pre-0.6.1-20100713_085324-titi)

UHCI init on dev 00:01.2 (io=c020)
Found 0 lpt ports
Found 0 serial ports
ATA controller 0 at 1f0/3f4/0 (irq 14 dev 9)
ATA controller 1 at 170/374/0 (irq 15 dev 9)
ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (698 GiBytes)
drive 0x000fdb40: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=1465149168
ata1-0: QEMU DVD-ROM ATAPI-4 DVD/CD
PS2 keyboard initialized
WARNING - Timeout at wait_qh:218!
Timeout on wait_qh 0x3ffef990 (td=0x3ffef8f0 s=400000 c=c1/0)
All threads complete.
Scan for option roms
Running option rom at ca00:0003
ebda moved from 9fc00 to 9f400
Returned 53248 bytes of ZoneHigh
e820 map has 7 items:
  0: 0000000000000000 - 000000000009f400 = 1
  1: 000000000009f400 - 00000000000a0000 = 2
  2: 00000000000f0000 - 0000000000100000 = 2
  3: 0000000000100000 - 000000003fffd000 = 1
  4: 000000003fffd000 - 0000000040000000 = 2
  5: 00000000fffc0000 - 0000000100000000 = 2
  6: feffd00000000000 - ff00100000000000 = 0
enter handle_19:
  NULL
Booting from DVD/CD...
1368MB medium detected
Booting from 0000:7c00

Why are PCHS and LCHS both wrong?

-- 
OpenSolaris guest fails to see the Solaris partitions of a physical disk in 
qemu-kvm-9999 (GIT)
https://bugs.launchpad.net/bugs/618533
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Status in QEMU: New

Bug description:
# qemu-kvm --version
QEMU emulator version 0.13.50 (qemu-kvm-devel), Copyright (c) 2003-2008 Fabrice 
Bellard

The following disk is presented to guest as IDE disk with /dev/sdd as path.

# fdisk -l /dev/sdd

Disk /dev/sdd: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x7f3a03aa

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1              63     7887914     3943926   1b  Hidden W95 FAT32
/dev/sdd2         7887915   980736119   486424102+  83  Linux
/dev/sdd3   *   980736120  1083150494    51207187+  bf  Solaris
/dev/sdd4      1083150495  1465144064   190996785    5  Extended
/dev/sdd5      1083150558  1107746009    12297726   83  Linux
/dev/sdd6      1107746073  1465144064   178698996    7  HPFS/NTFS

The prtvtoc output is attached from both VirtualBox and Qemu-KVM. As can be 
seen in the screenshots, a valid Solaris partition table (which is inside the 
/dev/sdd3, marked 'bf' in Linux fdisk output) is not seen in Qemu but seen in 
Virtualbox.

This makes the guest unbootable in Qemu because the root FS is not found but 
its bootable in Virtualbox.