Disk Mirroring in Sarge howto

[Siju George <sgeorge.ml@gmail.com>]

On 6/15/05, Sudev Barar <sudev@mantraonline.com> wrote:
> On Tue, 2005-06-14 at 16:15 +0530, Siju George wrote:
> > On 6/14/05, Raj Mathur <raju@linux-delhi.org> wrote:
> > > Uh, no.  If you want to install Sarge with RAID-1, create identical
> > > partitions on both disks and tell Sarge you want to use them as
> > > Physical Volume for RAID.  Then go into the Sarge Configure software
> > > RAID menu and create MD devices (RAID volumes) -- you will be prompted
> > > for the partitions to use for each RAID volume.
> > >
> > > Once the RAID volumes are created you can continue specifying mount
> > > point, FS type, etc for each volume exactly as you would for a normal
> > > disk partition.
> > >
> > > All this is from the last time I installed Sarge with RAID, over 6
> > > months ago, so may be a bit rusty.
> > >
> >
> > Thankyou so much Raj you gave me all the info I neded and 1 compleated
> > RAID1 configuration on Sarge with the above steps successfully.
> >
> > BUT I think the Sarge installer instaled GRUB only on hd0 and not on hd1!!!
>
> To do this (#comments may be wrapped):
> 1. sfdisk -a /dev/firstdisk > partitions.firstdisk
>  #hda/sda depends on hardware.
> 2. sfdisk -a /dev/seconddisk > partition.seconddisk
>  #these two just to keep partition information.

Thankyou so much Sudev for the detailed reply :-)

actually I got this

--------------------

# sfdisk -a /dev/hda > partitions.firstdisk
sfdisk: invalid option -- a
--------------------------------------------------------------------------

man sfdisk does not show an option "-a". what did you actualy mean??

> 3. grub
>  # this will drop you to grub prompt
> >find /grub/stage1
>  #note the output (hd0,0)(hd1,0) #This is showing all drives, in grub
> addressing, available

and this gave me

-------------------

grub> find /grub/stage1

Error 15: File not found

grub>

------------------------------------------------------

any Idea where i could have gone wrong???

Oh! my!! I am typing this as I am doing the thing :-) and I just
guessed something and it worked :-)

----------------

grub> find /boot/grub/stage1
 (hd0,1)
 (hd1,1)

grub>

------------------------------------------------------------

hope I did the rest correctly :-)

------------------------------------

grub> device (hd0) /dev/hdc

grub> root (hd0,1)
 Filesystem type is ext2fs, partition type 0xfd

grub> setup (hd0)
 Checking if "/boot/grub/stage1" exists... yes
 Checking if "/boot/grub/stage2" exists... yes
 Checking if "/boot/grub/e2fs_stage1_5" exists... yes
 Running "embed /boot/grub/e2fs_stage1_5 (hd0)"...  16 sectors are embedded.
succeeded
 Running "install /boot/grub/stage1 (hd0) (hd0)1+16 p (hd0,1)/boot/grub/stage2
/boot/grub/menu.lst"... succeeded
Done.

grub>

------------------------------------------------------------------------------------------------------------------------------------------



> >device (hd0) /dev/sdb
>  # hdb for ide
> >root (hd0,0)
>  #making second drive as first temporarily for next step
> >setup (hd0)
>  # watch output fly past as MBR is generated on second disk
> >quit
> 4. Now run the system with either hard disk plugged out to test boot. Do
> not go beyond boot else your raid will need to be re-synced.
>

Yes both are working independently with the other unplugged

but I think I wrecked it here :-(

I think the RAID is broken now!!! :-(

-------------------

# cat /proc/mdstat
cat: /proc/mdstat: No such file or directory

-------------------------------------------------------------------------------

and I find in my dmesg things like :-(

-----------------------------------

md: md1 stopped.
md: bind<hda2>
md: bind<hdc2>
md: kicking non-fresh hda2 from array!
md: unbind<hda2>
md: export_rdev(hda2)
raid1: raid set md1 active with 1 out of 2 mirrors
-------------------------------------------------------------------------------------

how do I fix it?????

thankyou so much for your detailed reply again Sudev

kind regards

Siju-----------If you need my full dmesg then

----------------------------------------------

0dff3000
ACPI: FADT (v001 KM400A AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x0dff3040
ACPI: MADT (v001 KM400A AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x0dff7240
ACPI: DSDT (v001 KM400A AWRDACPI 0x00001000 MSFT 0x0100000e) @ 0x00000000
ACPI: PM-Timer IO Port: 0x408
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 6:8 APIC version 16
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: Assigned apic_id 2
IOAPIC[0]: apic_id 2, version 3, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Built 1 zonelists
Kernel command line: root=/dev/md1 ro
Initializing CPU#0
PID hash table entries: 1024 (order 10: 8192 bytes)
Detected 1991.954 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 219852k/229312k available (1336k kernel code, 8768k reserved,
732k data, 204k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 3948.54 BogoMIPS
Security Scaffold v1.0.0 initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: 0383fbff c1c3fbff 00000000 00000000
CPU: After vendor identify, caps:  0383fbff c1c3fbff 00000000 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 256K (64 bytes/line)
CPU: After all inits, caps:        0383fbff c1c3fbff 00000000 00000020
CPU: AMD Athlon(tm) XP 2400+ stepping 01
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
ENABLING IO-APIC IRQs
init IO_APIC IRQs
 IO-APIC (apicid-pin) 2-0, 2-16, 2-17, 2-18, 2-19, 2-20, 2-21, 2-22,
2-23 not connected.
..TIMER: vector=0x31 pin1=2 pin2=-1
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 1991.0204 MHz.
..... host bus clock speed is 265.0495 MHz.
checking if image is initramfs...it isn't (ungzip failed); looks like an initrd
Freeing initrd memory: 4260k freed
NET: Registered protocol family 16
EISA bus registered
PCI: PCI BIOS revision 2.10 entry at 0xfb9d0, last bus=1
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040326
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 6 7 10 *11 12)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 6 7 10 *11 12)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 6 7 10 11 12) *5
ACPI: PCI Interrupt Link [LNKD] (IRQs *3 4 6 7 10 11 12)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 6 7 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 6 7 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNK0] (IRQs 3 4 6 7 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNK1] (IRQs 3 4 6 7 10 11 12) *0, disabled.
ACPI: PCI Interrupt Link [ALKA] (IRQs 20) *0, disabled.
ACPI: PCI Interrupt Link [ALKB] (IRQs 21) *0, disabled.
ACPI: PCI Interrupt Link [ALKC] (IRQs 22) *0, disabled.
ACPI: PCI Interrupt Link [ALKD] (IRQs 23) *0, disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
PnPBIOS: Scanning system for PnP BIOS support...
PnPBIOS: Found PnP BIOS installation structure at 0xc00fc410
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xc440, dseg 0xf0000
pnp: 00:0b: ioport range 0x3f0-0x3f1 has been reserved
PnPBIOS: 17 nodes reported by PnP BIOS; 17 recorded by driver
PCI: Using ACPI for IRQ routing
ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 18 (level, low) -> IRQ 169
ACPI: PCI Interrupt Link [ALKB] BIOS reported IRQ 0, using IRQ 21
ACPI: PCI Interrupt Link [ALKB] enabled at IRQ 21
ACPI: PCI interrupt 0000:00:10.0[A] -> GSI 21 (level, low) -> IRQ 177
ACPI: PCI interrupt 0000:00:10.1[B] -> GSI 21 (level, low) -> IRQ 177
ACPI: PCI interrupt 0000:00:10.2[C] -> GSI 21 (level, low) -> IRQ 177
ACPI: PCI interrupt 0000:00:10.3[D] -> GSI 21 (level, low) -> IRQ 177
ACPI: PCI Interrupt Link [ALKA] BIOS reported IRQ 0, using IRQ 20
ACPI: PCI Interrupt Link [ALKA] enabled at IRQ 20
ACPI: PCI interrupt 0000:00:11.1[A] -> GSI 20 (level, low) -> IRQ 185
ACPI: PCI Interrupt Link [ALKC] BIOS reported IRQ 0, using IRQ 22
ACPI: PCI Interrupt Link [ALKC] enabled at IRQ 22
ACPI: PCI interrupt 0000:00:11.5[C] -> GSI 22 (level, low) -> IRQ 193
ACPI: PCI Interrupt Link [ALKD] BIOS reported IRQ 0, using IRQ 23
ACPI: PCI Interrupt Link [ALKD] enabled at IRQ 23
ACPI: PCI interrupt 0000:00:12.0[A] -> GSI 23 (level, low) -> IRQ 201
ACPI: PCI interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 209
number of MP IRQ sources: 15.
number of IO-APIC #2 registers: 24.
testing the IO APIC.......................
IO APIC #2......
.... register #00: 02000000
.......    : physical APIC id: 02
.......    : Delivery Type: 0
.......    : LTS          : 0
.... register #01: 00178003
.......     : max redirection entries: 0017
.......     : PRQ implemented: 1
.......     : IO APIC version: 0003
.... IRQ redirection table:
 NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
 00 000 00  1    0    0   0   0    0    0    00
 01 001 01  0    0    0   0   0    1    1    39
 02 001 01  0    0    0   0   0    1    1    31
 03 001 01  0    0    0   0   0    1    1    41
 04 001 01  0    0    0   0   0    1    1    49
 05 001 01  0    0    0   0   0    1    1    51
 06 001 01  0    0    0   0   0    1    1    59
 07 001 01  0    0    0   0   0    1    1    61
 08 001 01  0    0    0   0   0    1    1    69
 09 001 01  0    1    0   1   0    1    1    71
 0a 001 01  0    0    0   0   0    1    1    79
 0b 001 01  0    0    0   0   0    1    1    81
 0c 001 01  0    0    0   0   0    1    1    89
 0d 001 01  0    0    0   0   0    1    1    91
 0e 001 01  0    0    0   0   0    1    1    99
 0f 001 01  0    0    0   0   0    1    1    A1
 10 001 01  1    1    0   1   0    1    1    D1
 11 000 00  1    0    0   0   0    0    0    00
 12 001 01  1    1    0   1   0    1    1    A9
 13 000 00  1    0    0   0   0    0    0    00
 14 001 01  1    1    0   1   0    1    1    B9
 15 001 01  1    1    0   1   0    1    1    B1
 16 001 01  1    1    0   1   0    1    1    C1
 17 001 01  1    1    0   1   0    1    1    C9
Using vector-based indexing
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ5 -> 0:5
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ9 -> 0:9
IRQ10 -> 0:10
IRQ11 -> 0:11
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
IRQ209 -> 0:16
IRQ169 -> 0:18
IRQ185 -> 0:20
IRQ177 -> 0:21
IRQ193 -> 0:22
IRQ201 -> 0:23
.................................... done.
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
PCI: Via IRQ fixup for 0000:00:10.0, from 11 to 1
PCI: Via IRQ fixup for 0000:00:10.1, from 11 to 1
PCI: Via IRQ fixup for 0000:00:10.2, from 5 to 1
PCI: Via IRQ fixup for 0000:00:11.5, from 5 to 1
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver $Revision: 1.90 $ 54 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
input: AT Translated Set 2 keyboard on isa0060/serio0
EISA: Probing bus 0 at eisa0
EISA: Detected 0 cards.
NET: Registered protocol family 2
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
NET: Registered protocol family 8
NET: Registered protocol family 20
ACPI: (supports S0 S1 S3 S4 S5)
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 4260 blocks [1 disk] into ram disk... |/-done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: 204k freed
vesafb: probe of vesafb0 failed with error -6
NET: Registered protocol family 1
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: raid1 personality registered as nr 3
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 0000:00:11.1
ACPI: PCI interrupt 0000:00:11.1[A] -> GSI 20 (level, low) -> IRQ 185
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1
    ide0: BM-DMA at 0xe000-0xe007, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0xe008-0xe00f, BIOS settings: hdc:DMA, hdd:pio
hda: SAMSUNG SP0411N, ATA DISK drive
hdb: LITE-ON LTR-48246S, ATAPI CD/DVD-ROM drive
Using anticipatory io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: max request size: 1024KiB
hda: 78242976 sectors (40060 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA(133)
 /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 >
hdc: SAMSUNG SP0411N, ATA DISK drive
ide1 at 0x170-0x177,0x376 on irq 15
hdc: max request size: 1024KiB
hdc: 78242976 sectors (40060 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA(100)
 /dev/ide/host0/bus1/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 >
md: md1 stopped.
md: bind<hda2>
md: bind<hdc2>
md: kicking non-fresh hda2 from array!
md: unbind<hda2>
md: export_rdev(hda2)
raid1: raid set md1 active with 1 out of 2 mirrors
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Unable to find swap-space signature
EXT3 FS on md1, internal journal
Generic RTC Driver v1.07
hdb: ATAPI 48X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
input: ImPS/2 Logitech Wheel Mouse on isa0060/serio1
mice: PS/2 mouse device common for all mice
Capability LSM initialized
ts: Compaq touchscreen protocol output
md: md5 stopped.
md: bind<hda7>
md: bind<hdc7>
md: kicking non-fresh hda7 from array!
md: unbind<hda7>
md: export_rdev(hda7)
raid1: raid set md5 active with 1 out of 2 mirrors
md: md4 stopped.
md: bind<hda6>
md: bind<hdc6>
md: kicking non-fresh hda6 from array!
md: unbind<hda6>
md: export_rdev(hda6)
raid1: raid set md4 active with 1 out of 2 mirrors
md: md3 stopped.
md: bind<hda5>
md: bind<hdc5>
md: kicking non-fresh hda5 from array!
md: unbind<hda5>
md: export_rdev(hda5)
raid1: raid set md3 active with 1 out of 2 mirrors
md: md2 stopped.
md: bind<hda3>
md: bind<hdc3>
md: kicking non-fresh hda3 from array!
md: unbind<hda3>
md: export_rdev(hda3)
raid1: raid set md2 active with 1 out of 2 mirrors
md: md0 stopped.
md: bind<hdc1>
md: bind<hda1>
raid1: raid set md0 active with 2 out of 2 mirrors
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md2, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md5, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Adding 1951736k swap on /dev/md0.  Priority:-1 extents:1
irda_init()
NET: Registered protocol family 23
via-rhine.c:v1.10-LK1.1.20-2.6 May-23-2004 Written by Donald Becker
ACPI: PCI interrupt 0000:00:12.0[A] -> GSI 23 (level, low) -> IRQ 201
eth0: VIA Rhine II at 0xec00, 00:0e:a6:95:5a:5e, IRQ 201.
eth0: MII PHY found at address 1, status 0x786d advertising 05e1 Link 45e1.
Via 686a/8233/8235 audio driver 1.9.1-ac4-2.5
ACPI: PCI interrupt 0000:00:11.5[C] -> GSI 22 (level, low) -> IRQ 193
via82cxxx: Six channel audio available
PCI: Setting latency timer of device 0000:00:11.5 to 64
ac97_codec: AC97 Audio codec, id: ADS112 (Unknown)
via82cxxx: board #1 at 0xE400, IRQ 193
usbcore: registered new driver usbfs
usbcore: registered new driver hub
USB Universal Host Controller Interface driver v2.2
ACPI: PCI interrupt 0000:00:10.0[A] -> GSI 21 (level, low) -> IRQ 177
uhci_hcd 0000:00:10.0: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
uhci_hcd 0000:00:10.0: irq 177, io base 0000d400
uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:10.1[B] -> GSI 21 (level, low) -> IRQ 177
uhci_hcd 0000:00:10.1: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (#2)
uhci_hcd 0000:00:10.1: irq 177, io base 0000d800
uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:10.2[C] -> GSI 21 (level, low) -> IRQ 177
uhci_hcd 0000:00:10.2: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (#3)
uhci_hcd 0000:00:10.2: irq 177, io base 0000dc00
uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:10.3[D] -> GSI 21 (level, low) -> IRQ 177
ehci_hcd 0000:00:10.3: VIA Technologies, Inc. USB 2.0
ehci_hcd 0000:00:10.3: irq 177, pci mem ce82c000
ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 4
ehci_hcd 0000:00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 6 ports detected
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected VIA KM400/KM400A chipset
agpgart: Maximum main memory to use for agp memory: 176M
agpgart: AGP aperture is 64M @ 0xe0000000
cpci_hotplug: CompactPCI Hot Plug Core version: 0.2
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
pciehp: acpi_pciehprm:\_SB_.PCI0 evaluate _BBN fail=0x5
pciehp: acpi_pciehprm:get_device PCI ROOT HID fail=0x5
shpchp: acpi_shpchprm:\_SB_.PCI0 evaluate _BBN fail=0x5
shpchp: acpi_shpchprm:get_device PCI ROOT HID fail=0x5
input: PC Speaker
inserting floppy driver for 2.6.8-2-386
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378 (0x778), irq 7, dma 3
[PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA]
eth0: Setting full-duplex based on MII #1 link partner capability of 45e1.