On Thu, Jul 26, 2007 at 01:51:45PM +0300, Yuriy Padlyak wrote: > Hi guys, > > No one can help me? :) > > Yuriy Padlyak wrote: >> Hi again! >> >> Have found some time to do it all. Didn't want to reinstall everything, >> done everything as you suggested except /boot is still on "160GB drive" >> without raid :-(, now I'm trying to find out how to put it on RAID :). assuming you have two available identical partitions to use for the RAID setup, the way *I* would _attempt_ this is to... 1) make sure I have a grub disk available in case I blow it and can't boot... 2) create the RAID1 array using the two partitions. 3) migrate my /boot to that new array 4) fix up my /etc/fstab to point to it 5) fix-up my /boot/grub/menu.lst entries to point to the right devices 6) update-initramfs 7) reboot and pray. this procedure was tested by me several months ago, but I don't remember it exactly, so you are suitable warned... if you are already booting to a / on some combination of LVM and RAID, then that's really the hard part. Its pretty straightforward to get /boot onto its own RAID1. You can manually install grub onto each disk that holds the partitions in your /boot array so that if a disk fails, you can still boot... please study up on this before attempting as you don't want to blow it. A oh, an alternate procedure might be to go ahead and just make a fs on one of the partitions, migrate /boot and get that working, then make that partition into a degraded array (missing disks) and make sure it boots fromthere and then finally add the second (or more disks) to the degraded array and then it will mirror and be operational. >> >> Does anyone have any idea how to make it safely? >> >> Also all file systems are in one VG now, wondering how to split them. >> >> Yuriy >> >> Douglas Allan Tutty wrote: >>> On Fri, May 11, 2007 at 09:54:41AM +0300, Yuriy Padlyak wrote: >>> >>>> Douglas Allan Tutty wrote: >>>> >>>>> On Sun, May 06, 2007 at 12:33:44PM +0300, Yuriy Padlyak wrote: >>>>> >>>>>> Thank you for your reply. Looks like you're suggesting installation, >>>>>> but I have Etch 4.0 installed already. Wondering if it's possible to >>>>>> put existent /boot on ext3 partition and LVM volume group on RAID1. Or >>>>>> possibly it will be easier to reinstall and restore configuration. >>>>>> >>>>> It all depends on how much extra space you have. Its a little like a >>>>> shell game with clear shells. If you give us your current drive(s) >>>>> layout including free space, and >>>>> your goal layout, perhaps we can help you with an implementation map. >>>>> I've totally forgotton how your drives are currently set up so I won't >>>>> make any if,then,else suggestions. >>>>> Have additional hard drive, which can store any data temporary, >>>>> while >>>> I'm preparing main disks. I have 160GB and 60GB drives. I have plan to >>>> make 60GB raid1 and 100GB for not very valuable data on rest of the >>>> 160GB drive. Now my VG(consisting all data) is on temporary 320GB drive >>>> and my /boot on ext3 partition is om 160GB. >>>> >>>> What I want is to put that /boot on raid1 along with very valuable data >>>> from temporary drive (VG) and not very valuable data on that 100GB not >>>> raid part. Everything except /boot should be on LVM. >>>> >>>> Hope my goal is clear now :) >>>> >>> >>> I don't have any experience setting up raid/LVM from anything other than >>> the installer: I set it up there and haven't had to touch it. So if it >>> were me and I had the netinst.iso or CD-1, I would do a minimal >>> reinstall on your two target disks and have ignore your 320 GB drive, >>> BUT I also don't have any experience of verifying how to get a new >>> install to find an existing LVM. So read lots of man pages, and >>> consider backing up your data to a tarball on either a raw device or a >>> file on a filesystem, either way to that 320GB drive. Either way, read >>> the raid HOWTOs and the LVM HOWTO. >>> >>> Your disk layout seems good: >>> >>> 60 GB drive partitions: >>> 1 32 MB for raid1 md0 >>> 2 59968 MB for raid1 md1 >>> >>> 160 GB drive partitions: >>> 1 32 MB for raid1 md0 >>> 2 59968 MB for raid1 md1 >>> 3 remainder for LVM, VG-stripe >>> this allows you later to add a device to this VG either >>> to extend the size or migrate data if this drive starts >>> to fail. >>> >>> Raid setup: >>> md0 filesystem /boot >>> md1 for LVM VG-mirror >>> >>> LVM setup: >>> VG-mirror: >>> LV-root 384 MB / >>> LV-usr 4 GB /usr >>> LV-var 6 GB /var >>> LV-home ?? /home >>> VG-stripe: >>> LV-?? ?? ?? >>> >>> Doug. >>> >>> >>> >> >> > > > -- > To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org with a > subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org > >
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