LinuxQuestions.org
Download your favorite Linux distribution at LQ ISO.
Go Back   LinuxQuestions.org > Forums > Other *NIX Forums > Solaris / OpenSolaris
User Name
Password
Solaris / OpenSolaris This forum is for the discussion of Solaris and OpenSolaris.
General Sun, SunOS and Sparc related questions also go here.

Notices

Reply
 
Search this Thread
Old 06-14-2006, 05:15 PM   #1
frankie_DJ
Member
 
Registered: Sep 2004
Location: NorCal
Distribution: slackware 10.1 comfy, Solaris10 learning
Posts: 232

Rep: Reputation: 30
how to wipe off hard drive in solaris?


Hi everyone,

Long time no read. I've tried to reinstall solaris 10 from scratch but it seems like solaris instaler is leaving the old installation on the hard drive. It's only a 9GB HD so it is a problem.
I would like to reformat the hard drive, so I use 1st installation disk, get out of instaler and:

fdisk /dev/dsk/c0t0d0

but I get the message about disk not being raw or something like that. I thought of using

dd bs=1000k if=/dev/zero of=dev/dsk/c0t0d0

to wipe it of, but it keeps stopping without finishing entire disk for some reason. Plus this would leave partition info on, which I don't want. Any suggestions? Thanks
 
Old 06-15-2006, 02:00 AM   #2
jlliagre
Moderator
 
Registered: Feb 2004
Location: Outside Paris
Distribution: Solaris10, Solaris 11, Mint, OL
Posts: 9,522

Rep: Reputation: 365Reputation: 365Reputation: 365Reputation: 365
Quote:
Originally Posted by frankie_DJ
but it seems like solaris instaler is leaving the old installation on the hard drive.
Only if you do not ask it to do it otherwise.
Quote:
so I use 1st installation disk, get out of instaler and:

fdisk /dev/dsk/c0t0d0

but I get the message about disk not being raw or something like that.
You should use this command instead:
Code:
fdisk /dev/rdsk/c0t0d0p0
Quote:
I thought of using

dd bs=1000k if=/dev/zero of=dev/dsk/c0t0d0

to wipe it of, but it keeps stopping without finishing entire disk for some reason.
There is no such device, you are probably creating a big file in the /dev partition until the partition is full.
The correct command would have been:
Code:
dd bs=1000k if=/dev/zero of=/dev/dsk/c0t0d0p0
 
Old 06-15-2006, 03:24 AM   #3
frankie_DJ
Member
 
Registered: Sep 2004
Location: NorCal
Distribution: slackware 10.1 comfy, Solaris10 learning
Posts: 232

Original Poster
Rep: Reputation: 30
Hi Jilliagre,

How are you? Still spreading the solaris wisdom? As usual you are right. Installation does ask whether I want to preserve the data. The problem is, I have a small HD (9Gigs) and I didn't realize that full Solaris 10 installation (together with the open source CD) takes over 10GB! That's a lot. I thought that the problem was in the old install not getting wiped out.

Anyways...since you are available, one more question. I added another HD (~30GB) and put it as a slave. I don't think that was very smart. My partitioning layout is: 9gig HD is master and has /swap and /export/home and Entire slave is root directory. Was that stupid? I am thinking, access to slave is not as fast as access to master. The installation is still going on, so I don't know at this point if the access to / will be slower or not. What do you think?

Last edited by frankie_DJ; 06-15-2006 at 03:41 AM.
 
Old 06-15-2006, 03:07 PM   #4
jlliagre
Moderator
 
Registered: Feb 2004
Location: Outside Paris
Distribution: Solaris10, Solaris 11, Mint, OL
Posts: 9,522

Rep: Reputation: 365Reputation: 365Reputation: 365Reputation: 365
Quote:
Originally Posted by frankie_DJ
Hi Jilliagre,

How are you?
Just fine, thanks
Quote:
Still spreading the solaris wisdom?
The best I can ...
Quote:
As usual you are right. Installation does ask whether I want to preserve the data. The problem is, I have a small HD (9Gigs) and I didn't realize that full Solaris 10 installation (together with the open source CD) takes over 10GB! That's a lot.
That's right, not to mention that when you add all the blastwave stuff you'll need a bunch of gigabytes more, and each non sparse zones will multiply that need further.

200+GB disks are quickly filled nowadays.

Quote:
I thought that the problem was in the old install not getting wiped out.

Anyways...since you are available, one more question. I added another HD (~30GB) and put it as a slave. I don't think that was very smart. My partitioning layout is: 9gig HD is master and has /swap and /export/home and Entire slave is root directory. Was that stupid?I am thinking, access to slave is not as fast as access to master. The installation is still going on, so I don't know at this point if the access to / will be slower or not. What do you think?
I can't tell. At the end of the installation, you may want to measure the throughput of both of your disks to see if the "slave" one is significantly slower.
You will then be able to relocate slash to the faster disk should that make a difference.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How best to format/wipe hard drive clean? blnkgcrsr001 Linux - Newbie 19 08-31-2010 08:56 AM
Wipe Hard Drive Prior to Install? usaf_sp Suse/Novell 2 10-27-2005 02:49 PM
Does the Solaris 10 installer have to wipe the whole hard drive? Eerath Solaris / OpenSolaris 8 07-27-2005 11:15 AM
How can I wipe the hard drive between partitions? tstrickland Mandriva 2 06-14-2005 11:00 PM
Wipe hard drive and resotre windows? + Backup nandish Linux - Newbie 1 10-03-2004 07:33 AM


All times are GMT -5. The time now is 10:54 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration