Re: Debian testing Software Raid 1 Migration
On Apr 5, 2005 4:27 PM, Chris Boot <bootc@bootc.net> wrote:
> Prepaid wrote:
>
> >Hello
> >
> >So I am currently running Debian Linux (testing) on a system. I want
> >to migrate over to RAID 1 (software) for data redundancy in the case
> >of a hard drive failure. I'm running the 2.4.30 kernel with RAID built
> >in (not module).
> >
> >I've run the command:
> >
> >mdadm --create /dev/md0 --level 1 --raid-device=2 missing /dev/hdc1
> >
> >
> >It creates the array and everything is fine it appears in /proc/mdstat
> >but upon rebooting the system will not realize the array.
> >
> >I realize I could update mdadm.conf and then have it autosense them
> >but I want the bios to read them from the superblock on the drive but
> >have no idea what I'm doing wrong.
> >
> >Any one got any ideas? I read the article on the howtos but am totally
> >stumped. I need to get mdadm to install the Persistent Superblock but
> >it should by default... hmm
> >
> >Thanks!
> >
> >
> Hi,
>
> Well, since you're using mdadm it has created a superblock, but the
> kernel probably doesn't know to look for it. You need to make sure you
> change the partition type from the usual 83 / Linux to fd, which is
> "Linux raid autodetect".
>
> Also, does your kernel attempt any autodetection at all? Can we see a
> dmesg if the above doesn't work?
>
> HTH,
> Chris
>
The drive has been set to FD:
Disk /dev/hdc: 80.0 GB, 80026361856 bytes
16 heads, 63 sectors/track, 155061 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 154816 78027232+ fd Linux raid autodetect
The kernel does try to autodetect, but it doesn't find anything...
Below is a dmesg:
Linux version 2.4.30 (root@zev) (gcc version 3.3.5 (Debian 1:3.3.5-8))
#1 Tue Apr 5 14:45:29 EDT 2005
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000000ffec000 (usable)
BIOS-e820: 000000000ffec000 - 000000000ffef000 (ACPI data)
BIOS-e820: 000000000ffef000 - 000000000ffff000 (reserved)
BIOS-e820: 000000000ffff000 - 0000000010000000 (ACPI NVS)
BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
255MB LOWMEM available.
On node 0 totalpages: 65516
zone(0): 4096 pages.
zone(1): 61420 pages.
zone(2): 0 pages.
Kernel command line: auto BOOT_IMAGE=LinuxLATEST ro root=301
No local APIC present or hardware disabled
Initializing CPU#0
Detected 1210.799 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 2418.27 BogoMIPS
Memory: 254200k/262064k available (1293k kernel code, 7480k reserved,
455k data, 108k init, 0k highmem)
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 256K (64 bytes/line)
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 0183f9ff c1c7f9ff 00000000 00000000
CPU: Common caps: 0183f9ff c1c7f9ff 00000000 00000000
CPU: AMD Athlon(tm) Processor stepping 02
Enabling fast FPU save and restore... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
mtrr: detected mtrr type: Intel
PCI: PCI BIOS revision 2.10 entry at 0xf1150, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
PCI: Via IRQ fixup
PCI: Using IRQ router VIA [1106/0686] at 00:04.0
Applying VIA southbridge workaround.
PCI: Disabling Via external APIC routing
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
Journalled Block Device driver loaded
Detected PS/2 Mouse Port.
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with HUB-6 MANY_PORTS
MULTIPORT SHARE_IRQ SERIAL_PCI enabled
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
PPP generic driver version 2.4.2
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
8regs : 1848.400 MB/sec
32regs : 1243.600 MB/sec
pII_mmx : 2836.800 MB/sec
p5_mmx : 3639.600 MB/sec
raid5: using function: p5_mmx (3639.600 MB/sec)
md: multipath personality registered as nr 7
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Initializing Cryptographic API
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
Linux IP multicast router 0.06 plus PIM-SM
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 2224 blocks [1 disk] into ram disk... done.
Freeing initrd memory: 2224k freed
VFS: Mounted root (cramfs filesystem).
Freeing unused kernel memory: 108k freed
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PDC20265: IDE controller at PCI slot 00:11.0
PCI: Found IRQ 10 for device 00:11.0
PDC20265: chipset revision 2
PDC20265: not 100% native mode: will probe irqs later
PDC20265: (U)DMA Burst Bit DISABLED Primary PCI Mode Secondary PCI Mode.
PDC20265: FORCING BURST BIT 0x00->0x01 ACTIVE
ide2: BM-DMA at 0x7400-0x7407, BIOS settings: hde:DMA, hdf:DMA
ide3: BM-DMA at 0x7408-0x740f, BIOS settings: hdg:pio, hdh:DMA
VP_IDE: IDE controller at PCI slot 00:04.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:04.1
ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xb808-0xb80f, BIOS settings: hdc:DMA, hdd:pio
ide: late registration of driver.
hda: HTS548060M9AT00, ATA DISK drive
blk: queue d0829480, I/O limit 4095Mb (mask 0xffffffff)
hdc: WDC WD800JB-00FMA0, ATA DISK drive
blk: queue d08298d4, I/O limit 4095Mb (mask 0xffffffff)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 117210240 sectors (60012 MB) w/7877KiB Cache, CHS=7296/255/63, UDMA(100)
hdc: attached ide-disk driver.
hdc: host protected area => 1
hdc: 156301488 sectors (80026 MB) w/8192KiB Cache, CHS=155061/16/63, UDMA(33)
Partition check:
hda: hda1 hda2
hdc: hdc1
VFS: Can't find ext3 filesystem on dev ide0(3,1).
reiserfs: found format "3.6" with standard journal
reiserfs: checking transaction log (device ide0(3,1)) ...
for (ide0(3,1))
ide0(3,1):Using r5 hash to sort names
VFS: Can't find ext3 filesystem on dev ide0(3,1).
reiserfs: found format "3.6" with standard journal
reiserfs: checking transaction log (device ide0(3,1)) ...
for (ide0(3,1))
ide0(3,1):Using r5 hash to sort names
Adding Swap: 112448k swap-space (priority -1)
Real Time Clock Driver v1.10f
PCI: Found IRQ 4 for device 00:09.0
PCI: Sharing IRQ 4 with 00:04.2
PCI: Sharing IRQ 4 with 00:04.3
3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
00:09.0: 3Com PCI 3c905 Boomerang 100baseTx at 0x9400. Vers LK1.1.18
eth0: Dropping NETIF_F_SG since no checksum feature.
r8169 Gigabit Ethernet driver 1.2 loaded
PCI: Found IRQ 12 for device 00:0a.0
eth1: Identified chip type is 'RTL8169s/8110s'.
eth1: RTL8169 at 0xd0912000, 00:08:54:d1:3f:45, IRQ 12
eth1: Auto-negotiation Enabled.
eth1: 1000Mbps Full-duplex operation.
ip_tables: (C) 2000-2002 Netfilter core team
ip_conntrack version 2.1 (2047 buckets, 16376 max) - 288 bytes per conntrack
Thanks so much!
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