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Old 11-14-2005, 08:50 AM   #1
Brian Knoblauch
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x86 install, partition problem


Installing onto an Adaptec 2100S with a 18GB array. Cannot complete install as it seems to require that "/" be contained completely within the first 1023 cylinders. Not a problem, EXCEPT that the installer also requires that "/" be 6.4GB (minimum) in size... Now, we all know that <=1023 cylinders is going to max out at 504MB...

Any suggestions?
 
Old 11-14-2005, 09:10 AM   #2
karpi
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Hello,

I think it is not "/" but /boot.
The OS must find some boot files within the 1024 cyl. boundary.

Make a small partition, maybe 100MB, for the boot partition and try again.

How many Cyls, Sects, Heads are reported to the PC depends on the Controller and the drives.

HTH
 
Old 11-14-2005, 09:32 AM   #3
Brian Knoblauch
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Solaris doesn't appear to use a "/boot" like other *nix variants usually do. Looks like all the real data goes into "/exports/home", so I tried making "/" small, with a large "/exports/home", but no go. It still wanted "/" to have 6.4GB.

What it looks like is happening is that Solaris is going through the Int 13h BIOS interface instead of natively controlling the drive. Maximum "standard" Int 13h return value is 1024 cylinders, 64 sectors, 16 head (IIRC, might be a little off as it's been so long since I've done x86 asm programming). Anyways, it comes out to <512MB... The controller is an I2O interface, and Solaris detects it as such, so I don't know why this issue is coming up.
 
Old 11-14-2005, 11:30 AM   #4
jlliagre
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Quote:
Solaris doesn't appear to use a "/boot" like other *nix variants usually do.
It definitely does use a /boot directory.

What Solaris version are you installing ?
 
Old 11-14-2005, 11:37 AM   #5
Brian Knoblauch
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Quote:
Originally posted by jlliagre
What Solaris version are you installing ?
10
 
Old 11-14-2005, 11:53 AM   #6
jlliagre
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I'm quite sure this doesn't happen with Solaris Express, you can check that.
It should work with Solaris 10 update 1 too, which is expected to use grub too.
 
Old 11-14-2005, 01:07 PM   #7
Brian Knoblauch
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Quote:
Originally posted by karpi
I think it is not "/" but /boot.
Did some more testing and It's definitely "/" that it wants to be both totally contained in the first 504MB and be larger than 6.4GB
 
Old 11-14-2005, 01:52 PM   #8
karpi
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Maybe you should look at

http://docs.sun.com/app/docs/doc/817...gbagb12?a=view

I think there you will find the neede information.
 
Old 11-14-2005, 01:59 PM   #9
jlliagre
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What testing lead you to that conclusion ?

I had Solaris 10 installed on a 160 GB disk, with a first partition of 38 GB and slice 0 (/) of 32 GB, and didn't experienced this problem.
 
Old 11-14-2005, 02:17 PM   #10
Brian Knoblauch
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Quote:
Originally posted by jlliagre
What testing lead you to that conclusion ?

I had Solaris 10 installed on a 160 GB disk, with a first partition of 38 GB and slice 0 (/) of 32 GB, and didn't experienced this problem.
Tried manually creating variously named slices of varying sizes that might help... Each time, I either get an error message (after clicking the go ahead to install button, right after divvy) that says "/ must fall completely within the first 1023 cylinders" or "/ must be at least 6400MB"...

I'm installing it now on another computer with an Adaptec 2120S with a RAID-0 configuration and it's working fine. Primary drive comes out to 68GB across 4 disks, setup as "/", and there's a standalone 34GB drive on an Adaptec 21960 that I have setup as swap. No issues with that configuration... Argh. Doesn't help me at all with the original computer though.

Last edited by Brian Knoblauch; 11-14-2005 at 02:18 PM.
 
Old 11-14-2005, 02:43 PM   #11
jlliagre
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I think this problem is resolved with IDE disks by using LBA addressing, but I've no idea about the reason why it affects SCSI ...

Anyway, you certainly can have a small enough / by creating separated slices for /usr, /var, /opt and /export.
 
  


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