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linux partitions

D_wathi
D_wathi asked
on
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Last Modified: 2012-05-10
Dear Experts:

I have RHEL5 installed long back , installed in two hard disks, posted below the fdisk -l and fstab
----------------------
 fdisk -l

Disk /dev/cciss/c0d0: 73.3 GB, 73372631040 bytes
255 heads, 63 sectors/track, 8920 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

           Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d0p1   *           1          25      200781   83  Linux
/dev/cciss/c0d0p2              26        5252    41985877+  8e  Linux LVM
/dev/cciss/c0d0p3            5253        6527    10241437+  83  Linux
/dev/cciss/c0d0p4            6528        8920    19221772+   5  Extended
/dev/cciss/c0d0p5            6528        7802    10241406   83  Linux
/dev/cciss/c0d0p6            7803        8312     4096543+  82  Linux swap / Solaris
/dev/cciss/c0d0p7            8313        8822     4096543+  82  Linux swap / Solaris

Disk /dev/cciss/c0d1: 146.7 GB, 146778685440 bytes
255 heads, 32 sectors/track, 35132 cylinders
Units = cylinders of 8160 * 512 = 4177920 bytes

           Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d1p1               1       17953    73248224   83  Linux
/dev/cciss/c0d1p2           17954       35132    70090320    5  Extended
/dev/cciss/c0d1p5           17954       35132    70090304   83  Linux

Disk /dev/cciss/c0d2: 146.7 GB, 146778685440 bytes
255 heads, 32 sectors/track, 35132 cylinders
Units = cylinders of 8160 * 512 = 4177920 bytes

           Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d2p1               1       23936    97658864   8e  Linux LVM
/dev/cciss/c0d2p2           23937       35132    45679680    5  Extended
----------------------end----------------------------------
-----------------------------/etc/fstab---------------
LABEL=/                 /                       ext3    defaults        1 1
LABEL=/boot1            /boot                   ext3    defaults        1 2
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
sysfs                   /sys                    sysfs   defaults        0 0
LABEL=/tmp              /tmp                    ext3    defaults        1 2

/dev/VolGroup00/LogVol00 /usr                    ext3    defaults        1 2
LABEL=SW-cciss/c0d0p6   swap                    swap    defaults        0 0
LABEL=SW-cciss/c0d0p7   swap                    swap    defaults        0 0
LABEL=/externaldrive    /external               ext3    rw,acl          1 2
LABEL=/extendedlogical  /extendedlogical        ext3    rw,acl          1 2

/dev/VolGroup00/LogVol03                /var            ext3    defaults        1 2
/dev/VolGroup00/LogVol02 /home                   ext3    defaults        1 2
------------------------------
my doubt is how to find wheather the created partition is in use i mean is already used , i have a doubt on /dev/cciss/c0d2p2 this is and extended partition but fstab does not show any pointing to this
can i delete this and and create a partition , please suggest me is there any method to find created partition is safe to delete or not. please help

~                                                                                                        





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