Well, after a bent pin on a tray connector prevented drive in the tray being recognized, and then a memory stick poppingt out of its socket unbeknownst to me, I tried rebooting the system, but the primary drive had its file systems locked, and none of the boot CDs I have on hand have reiserfs on them. The secondary drive also would no longer boot. I loaded a brand new Debina install on a spare disk, but when I tried to load mdadm or reiserfsprogs (or anything else), the system could not reach the outside world. I could download files from any server on my LAN, but anything on the internet was no-go. So I installed Debian again from scratch, and finally I have a working system, again. Phew!! (Sorry, I just had to vent.) Anyway, now that my original drive is back in good shape, I want to get the secondary RAID drive working so I can then copy everything to a primary RAID drive and have a fully functional RAID boot system. The problem is, when I boot from the disc, during the boot mdadm complains: "No devices listed in conf file were found", and then the system hangs. Clearly, the boot loader is finding the kernel in md1 / sdx1, but it seems the md2 / sdx2 array is not being properly loaded by the kernel. Here are the contents of /etc/mdadm/mdadm.conf: # mdadm.conf # # Please refer to mdadm.conf(5) for information about this file. # # by default, scan all partitions (/proc/partitions) for MD superblocks. # alternatively, specify devices to scan, using wildcards if desired. DEVICE partitions DEVICE /dev/hda* /dev/sd[a-i]* # auto-create devices with Debian standard permissions CREATE owner=root group=disk mode=0660 auto=yes # automatically tag new arrays as belonging to the local system HOMEHOST <system> # instruct the monitoring daemon where to send mail alerts MAILADDR lrhorer@xxxxxxxxxxx # definitions of existing MD arrays # This file was auto-generated on Thu, 14 May 2009 20:25:57 -0500 # by mkconf $Id$ PROGRAM /usr/bin/mdadm_notify ARRAY /dev/md0 level=raid5 metadata=1.2 num-devices=7 UUID=940ae4e4:04057ffc:5e92d2fb:63e3efb7 name='Backup':0 ARRAY /dev/md3 level=raid1 num-devices=2 metadata=01.02 name='Backup':3 UUID=3615c4a2:33786b6d:b13863d9:458cd054 ARRAY /dev/md2 level=raid1 num-devices=2 metadata=01.02 name='Backup':2 UUID=d45ff663:9e53774c:6fcf9968:21692025 ARRAY /dev/md1 level=raid1 num-devices=2 metadata=01.00 name='Backup':1 UUID=d6a2c60b:7345e957:05aefe0b:f8d1527f And here are the contents of the /boot/grub/menu.lst file: # menu.lst - See: grub(8), info grub, update-grub(8) # grub-install(8), grub-floppy(8), # grub-md5-crypt, /usr/share/doc/grub # and /usr/share/doc/grub-legacy-doc/. ## default num # Set the default entry to the entry number NUM. Numbering starts from 0, and # the entry number 0 is the default if the command is not used. # # You can specify 'saved' instead of a number. In this case, the default entry # is the entry saved with the command 'savedefault'. # WARNING: If you are using dmraid do not change this entry to 'saved' or your # array will desync and will not let you boot your system. default 0 ## timeout sec # Set a timeout, in SEC seconds, before automatically booting the default entry # (normally the first entry defined). timeout 5 # Pretty colours color cyan/blue white/blue ## password ['--md5'] passwd # If used in the first section of a menu file, disable all interactive editing # control (menu entry editor and command-line) and entries protected by the # command 'lock' # e.g. password topsecret # password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/ # password topsecret # # examples # # title Windows 95/98/NT/2000 # root (hd0,0) # makeactive # chainloader +1 # # title Linux # root (hd0,1) # kernel /vmlinuz root=/dev/hda2 ro # # # Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST ### BEGIN AUTOMAGIC KERNELS LIST ## lines between the AUTOMAGIC KERNELS LIST markers will be modified ## by the debian update-grub script except for the default options below ## DO NOT UNCOMMENT THEM, Just edit them to your needs ## ## Start Default Options ## ## default kernel options ## default kernel options for automagic boot options ## If you want special options for specific kernels use kopt_x_y_z ## where x.y.z is kernel version. Minor versions can be omitted. ## e.g. kopt=root=/dev/hda1 ro ## kopt_2_6_8=root=/dev/hdc1 ro ## kopt_2_6_8_2_686=root=/dev/hdc2 ro # kopt=root=/dev/hda2 ro ## default grub root device ## e.g. groot=(hd0,0) # groot=(hd0,0) ## should update-grub create alternative automagic boot options ## e.g. alternative=true ## alternative=false # alternative=true ## should update-grub lock alternative automagic boot options ## e.g. lockalternative=true ## lockalternative=false # lockalternative=false ## additional options to use with the default boot option, but not with the ## alternatives ## e.g. defoptions=vga=791 resume=/dev/hda5 # defoptions=quiet ## should update-grub lock old automagic boot options ## e.g. lockold=false ## lockold=true # lockold=false ## Xen hypervisor options to use with the default Xen boot option # xenhopt= ## Xen Linux kernel options to use with the default Xen boot option # xenkopt=console=tty0 ## altoption boot targets option ## multiple altoptions lines are allowed ## e.g. altoptions=(extra menu suffix) extra boot options ## altoptions=(single-user) single # altoptions=(single-user mode) single ## controls how many kernels should be put into the menu.lst ## only counts the first occurence of a kernel, not the ## alternative kernel options ## e.g. howmany=all ## howmany=7 # howmany=all ## should update-grub create memtest86 boot option ## e.g. memtest86=true ## memtest86=false # memtest86=true ## should update-grub adjust the value of the default booted system ## can be true or false # updatedefaultentry=false ## should update-grub add savedefault to the default options ## can be true or false # savedefault=false ## ## End Default Options ## title Debian GNU/Linux, kernel 2.6.26-1-amd64 Disk 1 root (hd0,0) kernel /vmlinuz-2.6.26-1-amd64 root=/dev/md2 ro quiet initrd /initrd.img-2.6.26-1-amd64 title Debian GNU/Linux, kernel 2.6.26-1-amd64 Disk 2 root (hd11,0) kernel /vmlinuz-2.6.26-1-amd64 root=/dev/md2 ro quiet initrd /initrd.img-2.6.26-1-amd64 title Debian GNU/Linux, kernel 2.6.26-1-amd64 (single-user mode) root (hd0,0) kernel /vmlinuz-2.6.26-1-amd64 root=/dev/hda2 ro single initrd /initrd.img-2.6.26-1-amd64 ### END DEBIAN AUTOMAGIC KERNELS LIST -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html