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Re: Is squeeze compatible woth WD20EARS and other 2TB drives?



Joel Roth put forth on 12/13/2010 10:03 PM:

> That is fascinating to learn, especially the fdisk
> is among the best tools for disk partitioning.
> 
> I was going to ask about my disk, but I see that my message
> is 
> 
>     Partition 1 does not end on cylinder boundary.
> 
> Which seems to be different than the OP's physical sector size
> message.

You have a totally different issue than what I addressed.

> If partition 1 is off, does that mean *all* partitions are
> off? How does one verify? (I used MiniTool Partition Wizard
> to shrink my laptop's Windows 7 partition, handling all the
> magical, Linux-hating files -- MFT, etc.)

> Disk /dev/sda: 320.1 GB, 320072933376 bytes
> 255 heads, 63 sectors/track, 38913 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x27b11b56

>    Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1         154     1228800    7  HPFS/NTFS
> Partition 1 does not end on cylinder boundary.
> /dev/sda2             154        4742    36860288+   7  HPFS/NTFS
> /dev/sda3            4743        5251     4088500   82  Linux swap / Solaris
> /dev/sda4            5252       38914   270398047+   f  W95 Ext'd (LBA)
> /dev/sda5            5252        7163    15358108   83  Linux
> /dev/sda6            7164       37638   244790404   83  Linux
> /dev/sda7           37639       38914    10240000    7  HPFS/NTFS

AFAIK this isn't critical.  I just checked one of my servers, all of
which have a 100MB /boot partition at the outside cylinder of the drive.
 The first cylinder of any modern drive, especially single platter
drives, is going to be many gigabytes in size.  Thus, I'm pretty sure my
100MB boot partitions do NOT end on cylinder boundaries.  However, I
don't receive the notification you do.

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x37945249

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          12       96358+  83  Linux
/dev/sda2              13        4267    34178287+  83  Linux
/dev/sda3            4268       28707   196314300    5  Extended
/dev/sda5            4268        4391      995998+  82  Linux swap
/dev/sda6            4392       16549    97659103+  83  Linux
/dev/sda7           16550       28707    97659103+  83  Linux

Again, I don't think this is worth any time.  If you have one of the
translated 4K drives and you're currently misaligned, that is worth
taking some time to fix.

-- 
Stan


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