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ply
n00b
Joined: 15 Aug 2005
Posts: 5
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 Posted: Mon Aug 15, 2005 9:47 am Post subject: Drive shows up as a 2GB disk while it is 18GB |
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As the topic says.. I have a Fujitsu MAJ3182M SUN18G drive. But when I run fdisk on it and do the initial configuration (setting cyl/heads/sec) it comes up as 2GB (or less) no matter what I input.
I bet there is a switch somewhere to set this, right?
I have tried with two disks (same model) but no result.
Any input is appreciated.
Thanks
/K |
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Ferris
Retired Dev
Joined: 13 Jan 2003
Posts: 426
Location: N. Virginia (USA)
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| Posted: Mon Aug 15, 2005 12:08 pm Post subject: |
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If it's not already labeled (and yours isn't), from fdisk you will have to label it by hand. That particular disk probably needs to end up looking something like this:
Disk /dev/sdb (Sun disk label): 19 heads, 248 sectors, 7200 rpm
7506 cylinders, 2 alternate cylinders, 7508 physical cylinders
0 extra sects/cyl, interleave 1:1
SUN18G cyl 7506 alt 2 hd 19 sec 248
Units = cylinders of 4712 * 512 bytes
(Or, if you have specifics for your drive, substitute them.)
After you define the label, you might have to go ahead and partition the disk before exiting with the 'w' command.
Unfortunately, there is no switch for this. fdisk does not know about any disks build this century, last I knew.
Also, you might have better luck using parted to label it, but I don't have the documentation in front of me, so I can't give a quick summary of what you would need to do. |
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ply
n00b
Joined: 15 Aug 2005
Posts: 5
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| Posted: Mon Aug 15, 2005 12:16 pm Post subject: |
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Thanks for the reply.
However, it seems this that the 'root' partition is limited to 2GB.
Could anyone confirm this?
Oh and why does fdisk need to know about the RPM of my drive? |
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rusty
Apprentice
Joined: 07 May 2004
Posts: 181
Location: St.Louis
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| Posted: Mon Aug 15, 2005 12:20 pm Post subject: |
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| Try enabling LBA. This enables really old machines to have partitions larger than 2G. |
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ply
n00b
Joined: 15 Aug 2005
Posts: 5
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| Posted: Mon Aug 15, 2005 1:24 pm Post subject: |
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| how would I go about doing this on a Sun Netra T1? |
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rusty
Apprentice
Joined: 07 May 2004
Posts: 181
Location: St.Louis
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| Posted: Mon Aug 15, 2005 4:57 pm Post subject: |
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| It's either a setting in BIOS or an option in grub.conf or lilo.conf, depending on whether you use grub or lilo respectively. |
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xming
Guru
Joined: 02 Jul 2002
Posts: 441
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| Posted: Mon Aug 15, 2005 11:39 pm Post subject: |
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BIOS, grub or lilo on a sparc, please enlighten us!
xming
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http://wojia.be |
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rusty
Apprentice
Joined: 07 May 2004
Posts: 181
Location: St.Louis
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| Posted: Mon Aug 15, 2005 11:49 pm Post subject: |
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| I never ran or learned about SPARC, so i don't know. |
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starrbuck
Tux's lil' helper
Joined: 04 Apr 2005
Posts: 138
Location: North Texas
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| Posted: Tue Aug 16, 2005 5:41 pm Post subject: |
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There's no such thing as enabling LBA on a SPARC. There is also no grub or lilo, only silo.
You will just need to use the "s" option of fdisk to set the proper Sun disk label for the 18G drive:
| Code: | Command (m for help): s
Building a new sun disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.
Drive type
? auto configure
0 custom (with hardware detected defaults)
a Quantum ProDrive 80S
b Quantum ProDrive 105S
c CDC Wren IV 94171-344
d IBM DPES-31080
e IBM DORS-32160
f IBM DNES-318350
g SEAGATE ST34371
h SUN0104
i SUN0207
j SUN0327
k SUN0340
l SUN0424
m SUN0535
n SUN0669
o SUN1.0G
p SUN1.05
q SUN1.3G
r SUN2.1G
s IOMEGA Jaz
Select type (? for auto, 0 for custom):
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Use "0" for custom. You can accept the defaults, which "might" work, or look up the specs on your drive to make sure you get them correct.
The Gentoo Handbook for SPARC actually describes how to setup the disks using fdisk:
http://www.gentoo.org/doc/en/handbook/handbook-sparc.xml?part=1&chap=4#doc_chap3
The example above was for a custom disk type, and it warns you that the auto detection might not work.
Also, I don't think root is limited to 2G. On one of my SPARCs, I am running a RAID 0 array with 4 2G drives on the root and having no issues:
| Code: | lavon ~ # df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md0 7638648 2124876 5125740 30% /
/dev/sda1 66136 2808 59916 5% /boot
none 67864 0 67864 0% /dev/shm
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| Code: |
lavon ~ # cat /etc/fstab
# /etc/fstab: static file system information.
# $Header: /home/cvsroot/gentoo-src/rc-scripts/etc/fstab,v 1.14 2003/10/13 20:03:38 azarah Exp $
#
# <fs> <mountpoint> <type> <opts> <dump/pass>
/dev/md0 / ext3 noatime 0 1
/dev/sda2 none swap sw,pri=1 0 0
/dev/sdb2 none swap sw,pri=1 0 0
/dev/sdc2 none swap sw,pri=1 0 0
/dev/sdd2 none swap sw,pri=1 0 0
/dev/sda1 /boot ext2 noatime 0 2
/dev/cdroms/cdrom0 /mnt/cdrom iso9660 noauto,ro 0 0
#/dev/fd0 /mnt/floppy auto noauto 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
none /proc/openprom openpromfs defaults 0 0
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| Code: |
lavon ~ # cat /etc/silo.conf
partition = 1
root = /dev/md0
timeout = 100
image = /kernel-2.4.31
label = linux
append="md=0,/dev/sda4,/dev/sdb4,/dev/sdc4,/dev/sdd4"
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| Code: | lavon ~ # fdisk /dev/sda
Command (m for help): p
Disk /dev/sda (Sun disk label): 19 heads, 80 sectors, 2733 cylinders
Units = cylinders of 1520 * 512 bytes
Device Flag Start End Blocks Id System
/dev/sda1 0 90 68400 83 Linux native
/dev/sda2 u 90 180 68400 82 Linux swap
/dev/sda3 0 2733 2077080 5 Whole disk
/dev/sda4 180 2733 1940280 fd Linux raid autodetect
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(All 4 drives look like /dev/sda.)
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