On Wed, 01 Jul 2009 17:30:39 +0300 Jari Ruusu <jariruusu@xxxxxxxxxxxxxxxxxxxxx> wrote: > Fog_Watch wrote: > > (I think this is the correct question) How do I create a ram-disk > > in which there is an assembled /dev/md1 from which to boot? > > Kernel config: > CONFIG_MD_AUTODETECT=y > > build-initrd.sh config: > BOOTDEV=/dev/md1 > CRYPTROOT=/dev/md2 > > lilo bootloader config: > boot=/dev/md1 > raid-extra-boot=/dev/hda,/dev/hdd > > Then use fdisk (or equivalent disk partitioning program) to set > partition type of /dev/hda2 /dev/hdd1 /dev/hda6 and /dev/hdd2 to > partition type FD. That way when linux kernel boots, it autodetects > those partitions as MD components and assembles MD RAID arrays during > kernel boot. Easiest way is let kernel autodetect and assemble all MD > RAID arrays. > > # fdisk -l /dev/hda | grep "hda[12]" > /dev/hda1 * 1 7 56196 fd Linux raid > autodetect /dev/hda2 8 645 5124735 fd > Linux raid autodetect # fdisk -l /dev/hdc | grep "hdc[12]" > /dev/hdc1 * 1 7 56196 fd Linux raid > autodetect /dev/hdc2 8 645 5124735 fd > Linux raid autodetect # cat /proc/mdstat | head -n 7 > Personalities : [linear] [raid0] [raid1] [raid5] > read_ahead 1024 sectors > md1 : active raid1 hdc1[1] hda1[0] > 56128 blocks [2/2] [UU] > > md2 : active raid1 hdc2[1] hda2[0] > 5124608 blocks [2/2] [UU] > Excellent, all working and good. Thanks again Fog_Watch. For the record: I did have some problems when using old boot-CD mdadm and grub. The successful files are as follows: grub.conf: root (hd0,1) #the machine has Windose on it. kernel /boot/kernel-2.6.29-gentoo-r5 root=100 rootfstype=minix init=/linuxrc splash=silent,fadein,theme:natural_gentoo console=tty1 video=uvesafb:1024x768-32@60,mtrr:3,ywrap 5 initrd /boot/initrd.gz build-initrd.conf: USEDEVFS=0 USEPIVOT=1 BOOTDEV=/dev/md1 BOOTTYPE=ext2 CRYPTROOT=/dev/md2 ROOTTYPE=reiserfs CIPHERTYPE=AES128 LOINIT="-I 0" USEGPGKEY=1 GPGKEYFILE=gpg.key EXTERNALGPGFILES=0 EXTERNALGPGDEV=/dev/fd0 EXTERNALGPGTYPE=ext2 USEMODULE=1 INITRDONLY=0 SOURCEROOT= DESTINATIONROOT= DESTINATIONPREFIX=/boot INITRDGZNAME=initrd.gz ROOTLOOPINDEX=5 TEMPLOOPINDEX=7 LOOPMODPARAMS="" UTF8KEYBMODE=0 LOADNATIONALKEYB=0 INITIALDELAY=0 MOUNTDELAY=0 TOOLSPROMPT=0 USEROOTSETUP=0 USEDIETLIBC=1 GCC=gcc /boot/rootsetup not used. -- Lose wait. Get Gentoo. - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
