Re: Resize jfs partition

[dclemen <dclemen@cajamar.es>]

Thanks for your reply. This afternoon I will try it.

Thanks again!!

Dennis Stosberg escribió:
> dclemen wrote:
> 
>> Hi, I have "/" directory on a partition with jfs file system. It has
>> 140Gb size, but I remove another partition with 40Gb that was behind "/"
>> partition. So I want to resize my / to get these 40Gb.
>>
>> I read some sites to resize partitions with:
>>
>> # mount -o remount,resize /home
> 
> Yes, that syntax works with jfs, as well.  On your Debian system you
> can find that information in the mount(8) manual page. Search for
> "Mount options for jfs".
> 
>> But I thing that I can't do it with / partition.
> 
> Jfs _is_ able to resize a file system which is in use. 
>  
>> There are any way to get it?. If not, maybe I can get any live-cd distro
>> and then resize it.
>>
>> It is safe? (I don't want to loose my data)
> 
> It is "safe" in the way that it will work reliably without any known
> errors that would lead to data loss. 
> 
> However, if a file system contains data that you cannot afford to
> lose, it is _always_ a very good idea to have a current backup.  And
> of course, the risk of losing data is much higher when you're
> modifying file systems.
> 
>> Thanks
>>
>> PD: fdisk /dev/sda
>>    Device Boot      Start         End      Blocks   Id  System
>> /dev/sda1   *           1        5864    47102548+   7  HPFS/NTFS
>> /dev/sda2            5865        6085     1775182+  82  Linux swap / Solaris
>> /dev/sda3            6086       24321   146480670   83  Linux
>> /dev/sda4           29500       30401     7245315    5  Extended
>> /dev/sda5           29500       30401     7245283+   b  W95 FAT32
>>
>> I want to get blocks from 24321 to 29500 (29499) into dev/sda3
> 
> This involves two steps:
> 
>   (1) Use fdisk to enlarge your /dev/sda3 partition to the new
>       size:  Set the last cylinder of that partition to 29499 (not
>       29500 !).  You need to reboot to make the kernel use the new
>       partition table.  Now the partition is 40 GB larger, but the
>       file system on that partition does not fill the complete
>       partition yet.
> 
>   (2) Enlarge the file system on /dev/sda3 to completely fill the
>       partition with "mount -o remount,resize".
> 
> Regards,
> Dennis
>