Thanks, i found out the problem but still i am confused actually i have disk 1 and disk 2 with same specs like they both are 320 GB and same made. here is my partition flow (because i had tried installation so many times so i change the partition structure)
1. /Boot 1GB (Boot on and on RAID /dev/md0) 2. SWAP 4 GB (RAID /dev/md1) 3, / (remaining space) (RAID /dev/md2) now at the end after installation when system rebooted for the first time i receive "error loading operating system" actually in BIOS boot option i mistakenly selected SATA2 as boot instead of SATA 1. when i shift things back i manage to reach grub menu. now the part where i am confuse is that i believed that the computer should have booted from SATA2 as well because boot partition is also installed over it too. as i have created /boot partiton on RAID which was md0. now for instance if my SATA 1 goes down then i would be handicap as it will not going to boot from SATA2. please suggest me what should i do in this regard. because what i want that, if some thing happen to any of the drive i just have to unplug the bad one and replace it with the new one ofcourse i know i have to make same RAID partition and stuff but what i want is if SATA1 Fails i want SATA 2 to boot with out any complex efforts. Thanks On Thu, Apr 5, 2012 at 4:37 PM, Camaleón <noela...@gmail.com> wrote: > On Thu, 05 Apr 2012 14:43:40 +0500, Muhammad Yousuf Khan wrote: > >> i am a newbie, i tried RAID 1 installation on VM which was working fine. >> now i tried to install the same scenario on physical machine. i have two >> 300 GB Hard drives and i want to make a RAID1 every things work >> perfectly. i created the RAID partition and then RAID device. i created >> 3 partition on the RAID drive. >> >> 1./boot (1GB) >> 2.SWAP (not on RAID) >> 3./Root (300 GB) >> >> now everything when fine to the end of the installation but the problem >> is when i restart the machine after installation. it doest boot however >> in VM machine it didn't happen. > > A virtual machine does not always helps to diagnose hardware related > issues and the VM can be using a different set of kernel modules for the > disks. > > Anyway, what error are you getting when booting? Can you reach the GRUB's > menu? > >> but one thing i notice during >> installation it is giving me the message "the Kernel was unable to >> re-read the partition table on /dev/md0 (invalid argument) this means >> Linux won't know anything about the modifications you made until you >> reboot you should reboot you computer before doing anyting with >> /dev/md0. >> >> i tried Squeez 6.0.4 and >> Lenny several times and at the end no-success. > > There are similar installation errors reported here: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507653 > > But that shouldn't have additional drawbacks other than the warning. > > My guess is that the problem here is booting from the raid volume. > > Greetings, > > -- > Camaleón > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org > Archive: http://lists.debian.org/jlk05q$mrm$4...@dough.gmane.org > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAGWVfM=sxo2ltrftozypjn6yaammaarkasa2zdxu_ctwt_v...@mail.gmail.com