Good Day I use native Linux driver from promise.com with Promise FastTrak 2000 on 2.4.x. I try to use dmraid with 2.6.8, 2.6.9 kernel patched udma patch from redhat. My hardware config Dual Athlon MP 2000+, Promise FastTrak TX2000, dual HDD WD800JB. I use RAID 1. For test with dmraid I use gen2dmraid bootcd from http://tienstra4.flatnet.tudelft.nl/~gerte/gen2dmraid/ and boot from hdd with write dmraid in initrd. dmraid 1.0.0-rc5f write some errors and don't activates my array. Output dmraid: dmraid -ay -vv NOTICE: /dev/hde: hpt37x discovering NOTICE: /dev/hde: hpt45x discovering NOTICE: /dev/hde: isw discovering NOTICE: /dev/hde: lsi discovering NOTICE: /dev/hde: nvidia discovering NOTICE: /dev/hde: pdc discovering NOTICE: /dev/hde: pdc metadata discovered NOTICE: /dev/hde: sil discovering NOTICE: /dev/hdg: hpt37x discovering NOTICE: /dev/hdg: hpt45x discovering NOTICE: /dev/hdg: isw discovering NOTICE: /dev/hdg: lsi discovering NOTICE: /dev/hdg: nvidia discovering NOTICE: /dev/hdg: pdc discovering NOTICE: /dev/hdg: pdc metadata discovered NOTICE: /dev/hdg: sil discovering NOTICE: added /dev/hde to RAID set "pdc_bfcgjjgge" NOTICE: added /dev/hdg to RAID set "pdc_dibachbhfh" ERROR: pdc: device /dev/hde broken in RAID set "pdc_bfcgjjgge" [1/2] ERROR: keeping degraded mirror set "pdc_bfcgjjgge" ERROR: pdc: device /dev/hdg broken in RAID set "pdc_dibachbhfh" [1/2] ERROR: keeping degraded mirror set "pdc_dibachbhfh" ERROR: no mapping possible for RAID set pdc_bfcgjjgge ERROR: no mapping possible for RAID set pdc_dibachbhfh dmraid -r -vv NOTICE: /dev/hde: hpt37x discovering NOTICE: /dev/hde: hpt45x discovering NOTICE: /dev/hde: isw discovering NOTICE: /dev/hde: lsi discovering NOTICE: /dev/hde: nvidia discovering NOTICE: /dev/hde: pdc discovering NOTICE: /dev/hde: pdc metadata discovered NOTICE: /dev/hde: sil discovering NOTICE: /dev/hdg: hpt37x discovering NOTICE: /dev/hdg: hpt45x discovering NOTICE: /dev/hdg: isw discovering NOTICE: /dev/hdg: lsi discovering NOTICE: /dev/hdg: nvidia discovering NOTICE: /dev/hdg: pdc discovering NOTICE: /dev/hdg: pdc metadata discovered NOTICE: /dev/hdg: sil discovering NOTICE: added /dev/hde to RAID set "pdc_bfcgjjgge" NOTICE: added /dev/hdg to RAID set "pdc_dibachbhfh" /dev/hde: pdc, "pdc_bfcgjjgge", mirror, ok, 78150656 sectors, data@ 0 /dev/hdg: pdc, "pdc_dibachbhfh", mirror, ok, 78150656 sectors, data@ 0 dmraid -s -vv ERROR: pdc: device /dev/hde broken in RAID set "pdc_bfcgjjgge" [1/2] ERROR: keeping degraded mirror set "pdc_bfcgjjgge" ERROR: pdc: device /dev/hdg broken in RAID set "pdc_dibachbhfh" [1/2] ERROR: keeping degraded mirror set "pdc_dibachbhfh" *** Set name : pdc_bfcgjjgge size : 78150656 stride : 128 type : mirror status : broken subsets: 0 devs : 1 spares : 0 *** Set name : pdc_dibachbhfh size : 78150656 stride : 128 type : mirror status : broken subsets: 0 devs : 1 spares : 0 if I try to boot from hdd with dmraid in initrd I take same errors. What I must do to activate my array with kernel 2.6.x with dmraid?