On Wed, 2003-05-07 at 18:07, Derek Vadala wrote: > On 7 May 2003, Zeno Davatz wrote: > > > If I want the software raid to work do I need to compile it into the > > kernel or does it suffice if I just load the support as module? > > > > I was reading in the software-RAID Howto that the support should NOT be > > loaded as Module. Why would that be? > > It depends when you start the arrays. If you are booting from SW RAID or > autostarting, you need to have the driver compiled into the kernel or you > need to use an initial RAM disk that preloads the md driver and necessary > RAID level modules. Well yes I believe this is true. I followed following howto: http://www.james.rcpt.to/programs/debian/raid1/ And I tried to load the drivers via RAM disk over mkinitrd. But my lilo always tells me: Fatal: map file must be on the boot RAID partition I attached my lilo.conf and my /etc/raidtab. Thanks for your time and help. Zeno
# /etc/lilo.conf - See: `lilo(8)' and `lilo.conf(5)', # --------------- `install-mbr(8)', `/usr/share/doc/lilo/', # and `/usr/share/doc/mbr/'. # +---------------------------------------------------------------+ # | !! Reminder !! | # | | # | Don't forget to run `lilo' after you make changes to this | # | conffile, `/boot/bootmess.txt', or install a new kernel. The | # | computer will most likely fail to boot if a kernel-image | # | post-install script or you don't remember to run `lilo'. | # | | # +---------------------------------------------------------------+ # Support LBA for large hard disks. # lba32 # Overrides the default mapping between harddisk names and the BIOS' # harddisk order. Use with caution. disk=/dev/md0 # bios=0x81 #disk=/dev/sda # bios=0x80 # Specifies the boot device. This is where Lilo installs its boot # block. It can be either a partition, or the raw device, in which # case it installs in the MBR, and will overwrite the current MBR. # boot=/dev/md0 #raid-extra-boot="/dev/hda,/dev/hdc" # Specifies the device that should be mounted as root. (`/') # root=/dev/md0 # Enable map compaction: # Tries to merge read requests for adjacent sectors into a single # read request. This drastically reduces load time and keeps the # map smaller. Using `compact' is especially recommended when # booting from a floppy disk. It is disabled here by default # because it doesn't always work. # # compact # Installs the specified file as the new boot sector # You have the choice between: bmp, compat, menu and text # Look in /boot/ and in lilo.conf(5) manpage for details # install=/boot/boot-menu.b # Specifies the location of the map file # map=/boot/map # You can set a password here, and uncomment the `restricted' lines # in the image definitions below to make it so that a password must # be typed to boot anything but a default configuration. If a # command line is given, other than one specified by an `append' # statement in `lilo.conf', the password will be required, but a # standard default boot will not require one. # # This will, for instance, prevent anyone with access to the # console from booting with something like `Linux init=/bin/sh', # and thus becoming `root' without proper authorization. # # Note that if you really need this type of security, you will # likely also want to use `install-mbr' to reconfigure the MBR # program, as well as set up your BIOS to disallow booting from # removable disk or CD-ROM, then put a password on getting into the # BIOS configuration as well. Please RTFM `install-mbr(8)'. # # password=tatercounter2000 # Specifies the number of deciseconds (0.1 seconds) LILO should # wait before booting the first image. # delay=20 # You can put a customized boot message up if you like. If you use # `prompt', and this computer may need to reboot unattended, you # must specify a `timeout', or it will sit there forever waiting # for a keypress. `single-key' goes with the `alias' lines in the # `image' configurations below. eg: You can press `1' to boot # `Linux', `2' to boot `LinuxOLD', if you uncomment the `alias'. # # message=/boot/bootmess.txt prompt timeout=150 # prompt # single-key # delay=100 # timeout=100 # Specifies the VGA text mode at boot time. (normal, extended, ask, <mode>) # # vga=ask # vga=9 # vga=normal # Kernel command line options that apply to all installed images go # here. See: The `boot-prompt-HOWO' and `kernel-parameters.txt' in # the Linux kernel `Documentation' directory. # append="md=0, /dev/hda2, /dev/hdc2" # Boot up Linux by default. # default=Linux image=/vmlinuz label=Linux read-only # initrd=/initrd.img # restricted # alias=1 image=/vmlinuz.old label=LinuxOLD read-only optional initrd=/initrd.img # restricted # alias=2
raiddev /dev/md0 raid-level 1 nr-raid-disks 2 nr-spare-disks 0 chunk-size 32 persistent-superblock 1 device /dev/hda2 raid-disk 0 device /dev/hdc2 failed-disk 1
