Re: Help, need to get some files off a partition

[Arend Meetsma <arend meetsma org>]

On Thu, 31 Jan 2002, Adam Niemirowski wrote:

> 
> Hello,
> 
> We had a RH7.1 system get hacked and it messed up the files so that we 
> can't boot up the system.  We can boot off the CD and go into rescue mode 
> and see the files in sysimage.  Is there a way I can install RH on a new 
> drive, put the old drive as a slave and mount the partitions so I cam copy 
> some files off the old partion?
> 
> I have a new system setup right now with the old drive as a slave but I 
> don't know how to activate the old drive to access  it.  It does not show 
> up in fstab.

Hi Adam,

All you have to do is figure out what drive number you are trying to 
mount, make a temp mount point, and mount it...

Figure out what drive number:

Is it IDE? If it is, it must be one of:

hda  .. Primary Master
hdb  .. Primary Slave
hdc  .. Secondary Master
hdd  .. Secondary Slave

You said it was slave, so it must be either hdb or hdd.

You have to figure out how many partitions are on your drive. Let's assume 
that your drive is hdb. Then if you had three partitions they would be 
located at:

/dev/hdb1
/dev/hdb2
/dev/hdb3


/sbin/fdisk will tell you what partitions you have. For example:
[root NIS /mnt]# /sbin/fdisk -l /dev/hdb

Disk /dev/hdb: 255 heads, 63 sectors, 1661 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdb1             1       200   1606468+  83  Linux
/dev/hdb2           201       550   2811375   83  Linux
/dev/hdb3           551       601    409657+  82  Linux swap
/dev/hdb4           602      1661   8514450    5  Extended
/dev/hdb5           602       984   3076447   83  Linux
/dev/hdb6           985      1112   1028159+  83  Linux
/dev/hdb7          1113      1661   4409842   83  Linux
[root NIS /mnt]# 



Make a temp mount point in the mnt directory:

as root:

[root NIS /]# cd /mnt/
[root NIS /mnt]# mkdir temp
[root NIS /mnt]#


And mount whichever partition you want:

[root NIS /mnt]# mount /dev/hdb1 temp
[root NIS /mnt]# l temp
total 168
drwxr-xr-x   19 root     root         4096 Jan 28 00:08 .
drwxr-xr-x    6 root     root         4096 Jan 31 16:06 ..
drwxr-xr-x    2 root     root         4096 Dec 10 22:57 bin
drwxr-xr-x    2 root     root         4096 Jan 28 00:02 boot
drwxr-xr-x   15 root     root        81920 Jan 28 00:08 dev
drwxr-xr-x   46 root     root         4096 Jan 31 16:11 etc
drwxr-xr-x    2 root     root         4096 Jul  3  2001 home
drwxr-xr-x    2 root     root         4096 Jun 21  2001 initrd
drwxr-xr-x    7 root     root         4096 Jan 27 23:55 lib
drwxr-xr-x    2 root     root        16384 Jul  3  2001 lost+found
drwxr-xr-x    2 root     root         4096 Mar  2  2001 misc
drwxr-xr-x    6 root     root         4096 Jan 31 16:06 mnt
drwxr-xr-x    2 root     root         4096 Aug 23  1999 opt
drwxr-xr-x    2 root     root         4096 Jul  3  2001 proc
drwxr-x---   15 root     root         4096 Jan 31 16:06 root
drwxr-xr-x    2 root     root         4096 Jan 27 22:02 sbin
drwxr-xr-x    2 root     root         4096 Jan 20 17:50 tmp
drwxr-xr-x    2 root     root         4096 Jul  3  2001 usr
drwxr-xr-x   19 root     root         4096 Jan 27 21:45 var
[root NIS /mnt]# 


when you are done, unmount the filesystem:

[root NIS /mnt]# umount temp
[root NIS /mnt]# 




Hope this helps,
Arend