uclibc linux # cat .config | grep RAID
CONFIG_RAID_ATTRS=y
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# Multi-device support (RAID and LVM)
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set

#dmesg, parties revelantes
Probing IDE interface ide0...
Probing IDE interface ide0...
Probing IDE interface ide1...
libata version 2.00 loaded.
sata_via 0000:00:0f.0: version 2.0
sata_via 0000:00:0f.0: routed to hard irq line 11
ata1: SATA max UDMA/133 cmd 0xF800 ctl 0xF402 bmdma 0xE800 irq 20
ata2: SATA max UDMA/133 cmd 0xF000 ctl 0xEC02 bmdma 0xE808 irq 20
scsi0 : sata_via
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: ATA-7, max UDMA/133, 312581808 sectors: LBA48 NCQ (depth 0/32)
ata1.00: ata1: dev 0 multi count 16
ata1.00: configured for UDMA/133
scsi1 : sata_via
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata2.00: ATA-7, max UDMA/133, 312581808 sectors: LBA48 NCQ (depth 0/32)
ata2.00: ata2: dev 0 multi count 16
ata2.00: configured for UDMA/133
  Vendor: ATA       Model: ST3160812AS       Rev: 3.AA
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: ATA       Model: ST3160812AS       Rev: 3.AA
  Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: Attached scsi disk sda
SCSI device sdb: 312581808 512-byte hdwr sectors (160042 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
SCSI device sdb: 312581808 512-byte hdwr sectors (160042 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2
sd 1:0:0:0: Attached scsi disk sdb
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 1:0:0:0: Attached scsi generic sg1 type 0
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
i2c /dev entries driver
hwmon-vid: Unknown VRM version of your x86 CPU
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: multipath personality registered for level -4
md: faulty personality registered for level -5
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised: dm-devel@redhat.com
EDAC MC: Ver: 2.0.1 Oct 15 2006
EDAC DEBUG: edac_sysfs_memctrl_setup()
EDAC DEBUG: Registered '.../edac/mc' kobject
EDAC DEBUG: edac_sysfs_pci_setup()
EDAC DEBUG: Registered '.../edac/pci' kobject
padlock: No VIA PadLock drivers have been loaded.
padlock: Using VIA PadLock ACE for AES algorithm.
padlock: Fallback for 'sha1' is driver 'sha1-generic' (prio=0)
padlock: Fallback for 'sha256' is driver 'sha256-generic' (prio=0)
padlock: Using VIA PadLock ACE for SHA1/SHA256 algorithms.
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
Using IPI Shortcut mode
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
md: Autodetecting RAID arrays.
Time: tsc clocksource has been installed.
md: autorun ...
md: considering sdb1 ...
md:  adding sdb1 ...
md:  adding sda4 ...
md: created md0
md: bind<sda4>
md: bind<sdb1>
md: running: <sdb1><sda4>
md0: setting max_sectors to 128, segment boundary to 32767
raid0: looking at sdb1
raid0:   comparing sdb1(128536000) with sdb1(128536000)
raid0:   END
raid0:   ==> UNIQUE
raid0: 1 zones
raid0: looking at sda4
raid0:   comparing sda4(128536000) with sdb1(128536000)
raid0:   EQUAL
raid0: FINAL 1 zones
raid0: done.
raid0 : md_size is 257072000 blocks.
raid0 : conf->hash_spacing is 257072000 blocks.
raid0 : nb_zone is 1.
raid0 : Allocating 4 bytes for hash.
md: ... autorun DONE.
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 204k freed
EXT2-fs warning: checktime reached, running e2fsck is recommended
input: AT Translated Set 2 keyboard as /class/input/input0
Velocity is AUTO mode
input: AT Translated Set 2 keyboard as /class/input/input1
eth0: Link autonegation speed 100M bps full duplex
w83697hf/hg WDT: WDT driver for W83697HF/HG initializing
w83697hf/hg WDT: Looking for watchdog at address 0x4e
w83697hf/hg WDT: watchdog found at address 0x4e
w83697hf/hg WDT: initialized. timeout=60 sec (nowayout=0)
ReiserFS: sda1: warning: sh-2021: reiserfs_fill_super: can not find reiserfs on sda1
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
ReiserFS: sda2: warning: sh-2021: reiserfs_fill_super: can not find reiserfs on sda2
VFS: Can't find ext3 filesystem on dev sda2.
VFS: Can't find an ext2 filesystem on dev sda2.
cramfs: wrong magic
FAT: bogus number of reserved sectors
VFS: Can't find a valid FAT filesystem on dev sda2.
FAT: bogus number of reserved sectors
VFS: Can't find a valid FAT filesystem on dev sda2.
Unable to identify CD-ROM format.
hfs: unable to find HFS+ superblock
HPFS: Bad magic ... probably not HPFS
NTFS-fs error (device sda2): read_ntfs_boot_sector(): Primary boot sector is invalid.
NTFS-fs error (device sda2): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover.
NTFS-fs error (device sda2): ntfs_fill_super(): Not an NTFS volume.
UFSD (fs/ufs/super.c, 612): ufs_fill_super:ENTER
UFSD (fs/ufs/super.c, 620): ufs_fill_super:flag 0
UFSD (fs/ufs/super.c, 306): ufs_parse_options:ENTER
You didn't specify the type of your ufs filesystem

mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...

>>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
UFSD (fs/ufs/super.c, 707): ufs_fill_super:ufstype=old
ufstype=old is supported read-only
ufs_read_super: bad magic number
UFSD (fs/ufs/super.c, 1045): ufs_fill_super:EXIT (FAILED)
VFS: Can't find a romfs filesystem on dev sda2.
UDF-fs: No partition found (1)
Mount JFS Failure: -22
jfs_mount failed w/return code = -22
ReiserFS: sda3: warning: sh-2021: reiserfs_fill_super: can not find reiserfs on sda3
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
ReiserFS: sdb2: warning: sh-2021: reiserfs_fill_super: can not find reiserfs on sdb2
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb2, internal journal
EXT3-fs: mounted filesystem with ordered data mode.