Hi.

I need to increase one partition size and decrease another one, on a server with RH AS 2.1.

This server has two disks(c0d0 and c0d1), and involve partitions are in teh same disk (c0d1). I have seen that I have to do this using "parted" (in single mode user).

I have executed print command, and partitions looks like:

Minor Start End Type Filesystem Flags
1 0.016 6143.906 primary ext3 boot
2 6143.906 38911.406 primary ext3
3 38911.406 46079.296 primary ext3
4 46079.297 69459.609 extended lba
5 46079.312 51199.218 logical ext3
6 51199.234 54271.171 logical ext3
7 54271.188 57343.125 logical ext3
8 57343.141 60415.078 logical ext3
9 60415.094 62977.031 logical ext3

Ther is 6.5 GB free space on it.

The partiton that I have to increase is Minor=2 (I would like to increase it 4 GB), and Partition that I would like to decrease is Minor=7 (I have to decrease it 2 GB).

But I have some doubts abouts steps to execute:

1. Delete partitons from 3 to 9, using:
rm <minor_index>
2. Increase partition 2, with:
resize 2 6143.906 ????
How can I get this ???? value (because they are blocks).
3. Make again rest of partitons:
- Minor=3 -> mkpartfs primary ext3 ????+1 ¿¿¿¿¿
How can I get this ¿¿¿¿ value
- Minor=4 -> How can I make this extended partition?
- Rest:
mkpartfs logical ext3 <start_block> <stop_block>
4. Quit from parted.
5. Reboot the server.

Are that steps right?,

Can anybody tell me how can I calculate <stop_block> value?.

After I restart the server, all file systems are mounted?, or I have to mount them.

Any help will be well received.

Thanks.

If you delete and recreate partitions, you *WILL* lose data. Your proposal would destroy all partitions from 3 up, and the filesystems on them. Read the limitations on parted's file system resizing capabilities here.

Thanks for the information.

I know that if I delete and recreate the partitions, I will lost the informtation, but I was thinking on execute a backup of them before.

I was thinking diferent ways to do this, but it doesn't occurred to me it.

Has anybody knows another way to do this?.

Can anybody tell me if steps indicated are ok?.

Thanks.

If you make a backup first, then you should be able to do what you described, then restore from the backup.

Thank you very much Matir.

I have some doubts unresolved:

1. Increase partition 2, with:
resize 2 6143.906 ????
How can I get this ???? value (because they are blocks).

2. Make again rest of partitons:
- Minor=3 -> mkpartfs primary ext3 ????+1 ¿¿¿¿¿
How can I get this ¿¿¿¿ value

3. Minor=4 -> How can I make this extended partition?


Can anybody tell me how can I calculate <stop_block> value? and how to created extended partition?.

After I restart the server, all file systems are mounted?, or I have to mount them.