Can I format 2nd hard drive and erase all data?

claven177

Well-Known Member
Sep 3, 2003
61
0
156
Taipei
Can I format 2nd hard drive and erase all data?
How to do it?

My box with 2 x 80G hard drive.
The 2nd HD, Disk /dev/hdb, I want to be a backup drive.
but with "lost+found" diretory, nearly 30 Giga bytes size.
Althought I use rm -rf lost+found to del the lost+found diretory,
got a "cannot remove" error message.

What's best method to erase all files on 2nd hard drive?

Thanks.


Code:
[/backup]# rm -rf lost+found
rm: cannot remove `lost+found/#327681/local/frontpage/version5.0/apache-fp/_vti_bin/fpexe': Operation not permitted
rm: cannot remove `lost+found/#327681/local/cpanel/cgi-sys/FormMail.cgi': Operation not permitted
rm: cannot remove `lost+found/#327681/local/cpanel/cgi-sys/formmail.cgi': Operation not permitted
rm: cannot remove `lost+found/#327681/local/cpanel/cgi-sys/FormMail.pl': Operation not permitted
rm: cannot remove `lost+found/#327681/local/cpanel/cgi-sys/formmail.pl': Operation not permitted
rm: cannot lstat `lost+found/#1802243/p007kk/mail/.gnupg/public_html/shopos/includes/languages/english/modules/payment': Input/output error

Code:
 [/backup]# ls -l
total 96
drwx--x--x    4 root root  4096 Jun  2 00:20 ./
drwxr-xr-x   28 root root  4096 Jun  4 19:14 ../
drwx--x--x    3 root root  4096 Jun  2 04:00 cpbackup/
drwx------  256 root root 77824 Jun  1 13:33 lost+found/


Code:
 [/backup/lost+found]# ls -l
drwxr-xr-x    6 root     root         4096 Dec 18  2004 #8553605/
drwxr-xr-x    3 root     root         4096 Aug  2  2003 #8568893/
drwxr-xr-x    4 root     root         4096 Dec 30  2003 #8634407/
drwxr-xr-x    3 root     root         4096 Dec  1  2004 #868366/
drwx------    2 root     root         4096 May 22 02:15 #868747/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #8765456/
drwx------    3 root     root         4096 May 19 06:14 #8765492/
drwxr-xr-x    2 root     root         4096 Mar 25 01:45 #8798792/
drwxr-xr-x    2 root     root         4096 Feb  4  2003 #8814607/
drwxr-xr-x    7 root     root         4096 Jul 24  2005 #8847367/
drwxr-xr-x    3 root     root         4096 Nov 14  2003 #884751/
drwxr-xr-x    3 root     root         4096 Oct 31  2002 #8863898/
drwxr-xr-x    3 root     root         4096 May 22 06:14 #8865117/
drwxr-xr-x    4    32140      644     4096 Feb 14 09:52 #8897330/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #8912902/
drwxr-xr-x    3 root     root         4096 Nov 14  2003 #8978440/
drwxr-xr-x    2 root     root         4096 Dec 23  2004 #901152/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9125905/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9125912/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9158671/
drwx------    2 root     root         4096 Jun 23  2004 #9160299/
drwx------    2 exxzwant   exxverstar     4096 Nov 21  2003 #9290507/
drwx------    2 exxzwant   exxverstar     4096 Nov 21  2003 #9290510/
drwxr-x---    3 exxzwant   mail         4096 May  9  2004 #9290513/
drwxr-xr-x    2 root     root         4096 Feb 24  2005 #9306118/
drwxr-xr-x    2 root     root         4096 Jan  9  2003 #9322504/
drwxr-xr-x    3 root     root         4096 Nov 14  2003 #9322534/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9322536/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9355267/
drwx------    3 root     root         4096 Dec  6  2004 #9373851/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9388035/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9388054/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #9404419/
drwx------    2 root     root         4096 Jan 29  2003 #9453587/
drwxrwx---    2 operator mail         4096 Nov 14  2003 #98316/
drwxr-xr-x    6 root     root         4096 Nov 14  2003 #999439/
drwxr-xr-x    2 root     root         4096 Nov 14  2003 #999441/
?---------    ? ?        ?               ?            ? C\t\203\335

# /sbin/fdisk -l

Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 268 2048287+ 82 Linux swap
/dev/hda3 269 399 1052257+ 83 Linux
/dev/hda4 400 9729 74943225 5 Extended
/dev/hda5 400 9729 74943193+ 83 Linux

Disk /dev/hdb: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hdb1 * 1 13 104391 83 Linux
/dev/hdb2 14 270 2064352+ 82 Linux swap
/dev/hdb3 271 9729 75979417+ 83 Linux​


WHM 10.8.0 cPanel 10.8.2-R119
RedHat Enterprise 4 i686 - WHM X v3.1.0
 

chirpy

Well-Known Member
Verifed Vendor
Jun 15, 2002
13,462
25
473
Go on, have a guess
Presuming that it's /dev/hdb that you want to wipe and recreate:

umount /backup
fdisk /dev/hdb
d
1
d
2
d
3
n
1
p
[enter] and repeat until back at the prompt
w

mke2fs -j -L /backup /dev/hdb1

you then need to make sure the following line exists in /etc/fstab and add/or modify it if needed:

/dev/hdb1 /backup ext3 defaults 1 2

Then remount it:

mount -a
 

claven177

Well-Known Member
Sep 3, 2003
61
0
156
Taipei
Great!!!

Is it normal when I got the message ?
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks



Code:
# fdisk /dev/hdb

The number of cylinders for this disk is set to 9729.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help):




Command (m for help): m
Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition
   l   list known partition types
   m   print this menu
   n   add a new partition
   o   create a new empty DOS partition table
   p   print the partition table
   q   quit without saving changes
   s   create a new empty Sun disklabel
   t   change a partition's system id
   u   change display/entry units
   v   verify the partition table
   w   write table to disk and exit
   x   extra functionality (experts only)




Command (m for help): p

Disk /dev/hdb: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hdb1               1         850     6827593+  83  Linux
/dev/hdb2             851        9729    71320567+  83  Linux

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

[COLOR="Red"]WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.[/COLOR]