Am 15. Oct, 2007 schwätzte Dazed_75 so:
> This machine has an 80 GB drive. It originally had M$ XP Pro on it. I then
> installed a prior version of ubuntu (it has been upgraded a time or two) but
> still left some unpartitioned space on the drive.. Somewhere along the line
> I started playing with Linux from scratch and added a 5GB partition for it.
> I just used cfdisk to look at the drive and got the following:
>
> cfdisk 2.12r
>>
>> Disk Drive: /dev/sda
>> Size: 80026361856 bytes, 80.0 GB
>> Heads: 255 Sectors per Track: 63 Cylinders: 9729
>>
>> Name Flags Part Type FS Type
>> [Label] Size (MB)
>>
>> ----------------------------------------------------------------------------------------
>> sda1 Boot Primary NTFS
>> [] 31108.01
>> sda2 Primary Linux ext3
>> [/] 17116.81
>> sda5 Logical Linux swap /
>> Solaris 3002.23
>> sda4 Primary Linux
>> ext2 5000.98
>>
>> Unusable 23795.74
>>
>>
> Any idea why that last 24 GB is showing as unusable? I seem to recall that
> a drive can only have 4 primary partitions but am not sure that is true.
Yeah, only 4 primary partitions on an IDE/PATA drive. I think the same
limit holds for SATA.
> Even if it is, there are only 3 shown as primary. Maybe the Logical
> partition counts as one of the 4 but can contain multiple "partitions"
> within it?
Yeah, logical partition is a metapartition. In this case it looks like
it's not taking the whole rest of the partition.
Backup anything you want to save before mucking with the partitions.
Boot on a live CD. Delete partition sda5, recreate it to use the entire
rest of the disk and add a swap partition. mkswap on the new swap
partition and update fstab.
ciao,
der.hans
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