how not to initialize HD

JB jb.123abc at yahoo.com
Fri Aug 6 03:55:05 UTC 2010


JB <jb.123abc <at> yahoo.com> writes:

Hi,
let me follow the previous post with another example.

One more "rule to follow" with regard to partitions:
http://www.lissot.net/partition/partition-03.html
...
Unlike primary partitions, logical partitions must be contiguous. Each logical
partition contains a pointer to the next logical partition, ...

OK.
Now another example of a disk layout (also Paul Cartwright's, but a different
 computer - Dell XPS desktops):
Btw Paul, is that disk also partitioned by Anaconda tool ?

Between partitions 2 and 4 there is a free space marked as "logical".
 
   Logical   219463964*  219463964      0           1*Free Space           
None

It is clearly outside of the Extended partition range.
How comes it is called "logical" if it violates the rule of contiguousness ?

# cfdisk -Ps
Partition Table for /dev/sda

               First       Last
 # Type       Sector      Sector   Offset    Length   Filesystem Type (ID) 
Flag
-- ------- ----------- ----------- ------ ----------- -------------------- ----
 1 Primary           0      128519     63      128520 Dell Utility (DE)    
None
 2 Primary      128520   219463963*     0   219335444*HPFS/NTFS (07)       
Boot
   Logical   219463964*  219463964      0           1*Free Space           
None
 4 Primary   219463965   615401954      0   395937990 W95 Ext'd (LBA) (0F) 
None
 5 Logical   219463965   223672994     63     4209030 Linux swap / So (82) 
None
 6 Logical   223672995   265618709     63    41945715 Linux (83)           
Boot
 7 Logical   265618710   615401954     63   349783245 Linux (83)           
None
 3 Primary   615401955   625137344      0     9735390 CP/M / CTOS / . (DB) 
None

# fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xe686f016

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1           8       64228+  de  Dell Utility
/dev/sda2   *           9       13661   109667722    7  HPFS/NTFS
/dev/sda3           38308       38913     4867695   db  CP/M / CTOS / ...
/dev/sda4           13662       38307   197968995    f  W95 Ext'd (LBA)
/dev/sda5           13662       13923     2104483+  82  Linux swap / Solaris
/dev/sda6   *       13924       16534    20972826   83  Linux
/dev/sda7           16535       38307   174891591   83  Linux

JB




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