Status Update:
I got RedHat 7.0 installed, then I cp '-xav' my / to the new
2.2.17+RAID+IDE patches /mnt/rd. Then I did some root=... changes in
lilo.conf, and some /dev/md0... changes in fstab. A quick reboot and
I was now setup on my new RAID-5 50GB 4-disc partition. It seems to
be pretty fast. I ran some iozone benchmarking on it, but I coudln't
get bonnie++ to compile, so I didn't test that. hdparm reported 7MB/s,
but I think I'm getting better than that.
One more Linux Success.
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Dan Browning
> Sent: Thursday, October 26, 2000 10:31 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Promise Ultra66 + root RAID 5 + RedHat 7.0-respin
> Installation + Mike Brancato's ATA/66/100 floppy
>
>
> OK.
>
> So I tried throwing in a different video card, so that got me to the
> graphical RH installer while using the ATA/66/100 install disk.
But
> after configuring the RAID portion of things (which goes great),
then
> getting to the install, it says:
>
> "Error Mounting md0: Invalid argument"
>
> And here's something from the dump:
>
> SystemError: (22, 'invalid argument') in mountFileSystmes
>
> And here is ALT-F4
>
> <4>hda:.....
> <4> etc. through all the hdX
> <6>Adding Swap: 313228k swap-space (priority -1)
> <4>Oops ! md0 not running, giving up !
> <3>Bad md_map in ll_rw_block
> <4>EXT2-fs: unable to read superblock
>
> And here is ALT-F5
>
> mke2fs 1.18, etc...
> /tmp/md0: Invalid argument passed to ext2 library while setting up
> superblock
>
> ---
>
> So I think I'm going to give up on the "It will work great during
> installation" idea.
> Now I have two Alternatives:
>
> One:
>
> - Take the cd-rom off the primary/slave ide, and take the tape
drive
> off the secondary/slave ide channel.
> - Squeeze all 4 hdds onto the 2 motherboard channels
> - RH has no problem installing to the mobo channels, so I RAID all
4
> drives (like I outlined earlier).
> - After successful install/bootup, I compile a new 2.2.18pre17
kernel
> with the correct IDE/RAID patches. Boot the new kernel to see the
> promise working great.
> - Now, I'll try and edit the raidtab to tell it that I'm going to
put
> two of the RAID disks on new channels. How do I know how to edit
this
> file correctly?
> - Reboot and hope that everything comes up just as if I had
installed
> it to the promise in the first place.
>
> What are your thoughts?
>
> Alternative Two:
>
> Just install a vanilla installation, then moving it over to the RAID
> once it is working, with a cp -av.
>
> Anyway, I'm off to try and roll my own kernel + RAID. Does this
sound
> like a good combination to y'all?
>
> 2.2.18pre17 with the following patches:
> (kernel.org) people/hedrick/ide.2.2.18-3.all.20000904.patch.gz
> (kernel.org) people/mingo/raid-2.2.18-A2
> (linuxtapecert.org) ide.2.2.18-3.all.20000904.patch.gz
> \-> this is for my Onstream DI-30, a 30gb IDE
> tape backup.
>
> How do you build RawHide ISO's? For that matter, how do I build my
> own Rh7 dirs? Do I just take the FTP directory and burn it to a
disc?
> Also, what is involved in creating new kernel-*.rpm's?
>
> Again, thanks for all the help guys,
>
> Dan Browning
> Network & Database Administrator
> Cyclone Computer Systems
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Chris Watt
> > Sent: Thursday, October 26, 2000 9:04 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Promise Ultra66 + root RAID 5 + RedHat 7.0-respin
> > Installation + Mike Brancato's ATA/66/100 floppy
> >
> >
> > At 07:35 PM 10/26/00 -0700, Dan Browning wrote:
> >
> > > - However, it only boots into text mode for some reason (Any
> > >comments, Mike Brancato?). In text mode, is there anyway to
> > configure
> > >a RAID device? I don't see the "Make RAID device" button
anywhere.
> > >Maybe someone could spell out the baby steps if it is indeed
> > possible.
> >
> > You seem to have missed what may be your key problem here:
> > The standard
> > Linux kernel version 2.2.16 (and earlier) does not support
> > your Promise HDD
> > controller. You need a specially patched kernel to support
> > it. You cannot
> > access the card unless you have booted with a patched kernel.
> > Now consider
> > the implications:
> > You install Redhat using someone else's boot disk (which
> > contains a patched
> > kernel), you setup your RAID array, you boot the machine from
> > /boot using
> > the stock Redhat kernel, you cannot access half the drives in
> > your array,
> > you cannot boot (RAID-5 only tolerates the loss of 1 disk,
> > not two), you
> > are SOL (unless you'd like to boot from the floppy again).
> > What you really
> > need is your own kernel (and preferably source code for same)
> > which has
> > Hedrick's unified-ide patch installed and thus recognizes your
> Promise
> > controller.
> >
> > What you should probably do instead is one of the following:
> > 1. Install Redhat, creating your RAID-5 array on your four
> > disks, while
> > they're all on the supported controller, then patch your
> > kernel, make sure
> > you've got it working, edit your raidtab so Linux will look
> > for two of your
> > disks on the Promise controller, power down and physically
> > move the disks,
> > boot up and be happy (I did something like this earlier today
> > with a RH 6.2
> > box and a patched copy of kernel 2.2.17, using a very simlar
> > Promise ATA100
> > controller, it seems happy so far).
> >
> > 2. If you're planning on most of your disk usage being under
> > one or two
> > mountpoints, you may want to consider putting your entire
> > root filesystem
> > on one device, then creating a RAID array later (after
> > installing a patched
> > kernel) and just mounting it somewhere else (e.g. /home). If
> > you're feeling
> > more daring, you could install, make a boot floppy, make a
> > root floppy with
> > some basic utils (or, my preference, install another minimal
Redhat
> > installation in a 200mb partition on hda), use patched
> > kernels for both,
> > reboot the machine from your "alternate" boot device, cp -av
> > your "main"
> > root filesystem to somewhere (better yet, install it on some
> > other spare
> > IDE drive in the first place), create your RAID array, cp-av
> > your "main"
> > root filesystem onto the RAID array. Make the necessary
adjustments
> > (particularly to raidtab, lilo and fstab), boot and be happy :)
> >
> > 3. If you're feeling more cutting-edge, or simply lazy, you could
> try
> > installing Redhat's Rawhide development distribution, which
> > ships with the
> > preview version of Kernel 2.4 and as such should have
> > built-in support for
> > your Promise card. Probably you could also install the
> > Rawhide kernel 2.4
> > rpm into a Redhat 7 system to get a similar effect.
> >
> > 4. You could, if you feel like reading some documentation
> > first and have
> > another Linux (or vaguely similar) box handy and access to a
> > cd-burner,
> > build your own Redhat 7 install cd using a copy of kernel
> > 2.2.17 with the
> > unified-ide patch rather than Redhat's standard kernel
> > 2.2.16. Then you
> > could use the cd to do a GUI install with RAID and support
> > for your hdd
> > controller. It should also be possible to do this without
> > actually burning
> > a cd, if you have a local FTP or NFS server you could stick
> > the install
> > files on. This would be especially good if you're not sure you got
> it
> > right, as you wouldn't have to burn a disc for each mistake.
> >
> > >Also: What if I just installed vanilla non-raid Redhat,
> > then compiled
> > >my own kernel and configured RAID after the thought? Is there a
> > >Disk-Druid alternative for Post-Installation that can do RAID?
> >
> > I don't know about a GUI tool, <flamebait>I tend to use
> > Windows when I want
> > a GUI</flamebait>, but you can certainly use fdisk to create RAID
> > autodetect partitions (type fd), edit your raidtab to define
> > your /dev/md*
> > device(s) and use mkraid to create RAID arrays (and then, to
> > avoid looking
> > as stupid as I did once, remember to use mke2fs to actually create
a
> > filesystem on the RAID array before trying to write to it).
> > Note BTW that if you decide to go the Kernel 2.4 route you
> > should read the
> > LVM howto, as LVM is IMHO somewhat of an improvement on
> > classic software
> > RAID, even if it seems demented on the surface.
> > --
> >
> > Who is this General Failure, and why is he reading my hard disk?
> >
> >
> >
> > _______________________________________________
> > Redhat-list mailing list
> > [EMAIL PROTECTED]
> > https://listman.redhat.com/mailman/listinfo/redhat-list
> >
>
>
>
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