how to reformat a hard disk


 
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Operating Systems Solaris how to reformat a hard disk
# 1  
Old 08-10-2007
how to reformat a hard disk

hi

i need help on how to reformat a hard disk. what should i do since i don't have any bootable disk. i'm using solaris 1 & 2 and also need to make a backup copy of the current hard disk. appreciate all the help i can get...
# 2  
Old 08-10-2007
Confuse!

Sorry but I am not sure if I understand this post really. (maybe its my bad EnglishSmilie)

If you want to backup your system then use the ufsdump command and save this file on an other system or tape.

Example of the man page to write on a tape the filesystem at the c0t3d0s0 slice:
ufsdump 0cfu /dev/rmt/0 /dev/rdsk/c0t3d0s0

Your first question regarding the boot device:
Insert the Solaris install dvd or cd then the system label the disks (If there is a physical disk mounted) automatically!

Best regards
joerg
# 3  
Old 08-10-2007
what is solaris 1 & 2?

Last edited by blowtorch; 08-10-2007 at 05:21 AM.. Reason: profanity
# 4  
Old 08-10-2007
hi joerg

your english is great. my problem is that i have very limited skills when it comes to unix that's why my question may be hard to comprehend.
i want to create a back up of my hard disk but the hard disk that i'll be using is already loaded with files as it is the back up of another system and i want to create a dedicated backup for my system. i also have limited resources since the hard disk i'm using is very hard to find here in our place. the hard disk i'm using currently is from a sparc 20 computer.
if you can give me the best alternatives to solve my problem, i would be more than grateful... by the way, i don't have a deep understanding about the c0t3d0s0 you're mentioning... all i know about this is the hard disk present but i'm not really familiiar about what the letters & numbers stand for. if you can also explain it for me, i'll be really grateful. i come from the philippines by the way...
for the meantime, i'll try reading about ufsdump...
Thanks and God Bless!!!
# 5  
Old 08-10-2007
More Info

Hi,
I need more Information to support you.

First of all your hardware is a sparc20 is this right?

If it is a sparc20 you have two slots for disks.
So the question is you have only one or two disks inside the box?

To test this behavior please use the
format
command. Please post this output or/and the
ls -ltr /dev/dsk
output.

To determine how much diskspace is available send the output of
df -hk # If your Solaris Version is less then Solaris 9 then try it without the h option, because this option is first available in solaris 9.

One important thing inside this forum is to post the uname -a output. It is to see witch Version of solaris you use and the Hardware platform is shown.


Best regards
joerg
# 6  
Old 08-11-2007
hi joerg

My hardware is a sparc 20 computer. I have 2 hard disk slots and I also have 2 hard disks inside b'coz I managed to ask for one from my co-worker. The good hard disk that I want to duplicate is in slot 0 when I invoke the format command. The 2nd hard disk that I want to make my back up is in slot 1. By the way, I already tried to mirror the disk but failed. I don't know where I went wrong with the process that's why I'm asking if there are still available options to solve my problem. I'll try what you advised and give you feedback asap so that I can give you a better information about my situation... Thanks and God Bless Always!!!
# 7  
Old 08-13-2007
hi joerg,

I already tried the inputs you gave me and here are the scripts...

# format

Searching for disks...done


AVAILABLE DISK SELECTIONS:
0. c0t1d0 <SUN2.1G cyl 2733 alt 2 hd 19 sec 80>
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@1,0
1. c0t3d0 <SUN1.05 cyl 2036 alt 2 hd 14 sec 72>
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0
Specify disk (enter its number):

------------------------------

# ls -ltr /dev/dsk
total 32
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s0 -> ../../devicesa
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s7 -> ../../devicesh
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s6 -> ../../devicesg
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s5 -> ../../devicesf
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s4 -> ../../devicese
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s3 -> ../../devicesd
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s2 -> ../../devicesc
lrwxrwxrwx 1 root root 84 Aug 9 1995 c0t3d0s1 -> ../../devicesb
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s7 -> ../../devicesh
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s6 -> ../../devicesg
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s0 -> ../../devicesa
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s5 -> ../../devicesf
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s4 -> ../../devicese
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s3 -> ../../devicesd
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s2 -> ../../devicesc
lrwxrwxrwx 1 root root 84 Feb 2 2005 c0t1d0s1 -> ../../devicesb

------------------------------------

# df -k
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c0t3d0s0 47975 41567 1618 96% /
/dev/dsk/c0t3d0s6 211607 182009 8438 96% /usr
/proc 0 0 0 0% /proc
fd 0 0 0 0% /dev/fd
swap 206024 656 205368 0% /var/tmp
/dev/dsk/c0t3d0s5 96455 59527 27288 69% /export
/dev/dsk/c0t3d0s7 607086 288790 257596 53% /w.local
pylon:/export/home/vega
16068155 9052213 6855261 57% /vega
pylon:/export/home/home1
16068155 9052213 6855261 57% /home

-------------------------------------

# uname -a
SunOS robintc1 5.4 ksam.on494-patch.12/22/94 sun4m sparc

another confusion that I have is that the 2nd disk I put into the sparc computer is labeled to have 2.1G capacity but when I invoke the format command, it only has 1.05G of memory. Do you have any ideas about this?

Just tell me if you need further info about my problem 'coz I really need your input/s...

Thanks and God Bless!!!
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