Increase root partition on ufs filesystem

Question

Hello
we have a virtual solaris vm with ufs the disk has become to small..
we have increased the vmfs but we are having problems increasing the filesystem as format only sees the old size.. fdisk does not seem to offer the possibility to expand the partition to its maximum size.. is it possible to change the label of a solaris partition so that it takes into account all the space that is available for it?
why fdisk does not see there is unallocated space.. i could create a second partition and mount it to other directory perhaps.
thank you.

Answer 1

Hi.
Solaris on X86 system placed on special general dos partittion.
fdisk - used for first level.  On this level you can create one ( and only one) partition with type Solaris
          and can create some additional partitions for other OS.
format - used for second level.  It create additional  partittions on solaris's partitions on first level.  This label also store original size of disk.
So you need:
1.  Increase  Solaris partition on first level, using fdisk
2. Check that format detect new size of disk and increase/create new.
In case mistake on any steps - you lost data.
This problem correspond only for root fs and UFS.
On my choice -  create addtional virtual disk and just add it  to system.
For new disk use gpt (efi) type of label.
Regards.