im using vmware on my ubuntu server, initial setup was 10GB disk utilization, increased it to 15GB using lvextend
and added another 5GB for a total of 20GB.
below displays my fdisk -l
Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0002948a
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 499711 248832 83 Linux
/dev/sda2 501758 20969471 10233857 5 Extended
/dev/sda3 499712 501757 1023 83 Linux
/dev/sda4 20969472 31457279 5243904 8e Linux LVM
/dev/sda5 501760 20969471 10233856 8e Linux LVM
/dev/sda4 is actually an extension of my /dev/sda5
root@media:~# pvscan
PV /dev/sda5 VG media lvm2 [9.76 GiB / 0 free]
PV /dev/sda4 VG media lvm2 [5.00 GiB / 0 free]
Total: 2 [14.76 GiB] / in use: 2 [14.76 GiB] / in no VG: 0 [0 ]
i still have unallocated disk somewhere in my /dev/sda as stated above and i want to use it.
but when i create a new partition in my fdisk /dev/sda
to get the additional 5GB, i get this 1023
blocks instead.
Device Boot Start End Blocks Id System
/dev/sda3 499712 501757 1023 83 Linux
by ignoring above, and creating another partition on my /dev/sda
this shows..
All primary partitions are in use
Adding logical partition 6
No free sectors available
i cant seem to create another partition without this
/dev/sda3 499712 501757 1023 83 Linux
happening. can someone assist what im doing wrong?
basically, what i had in mind is to gradually increase the partition size of my server.
from 10 + 5 + 5 + so on…
windows was able to extend unallocated space without any problems and rebooting. im very new to linux and i hope someone would help me understand whats happening in my issue.
root@media:~# pvs
PV VG Fmt Attr PSize PFree
/dev/sda4 media lvm2 a- 5.00g 0
/dev/sda5 media lvm2 a- 9.76g 0
root@media:~# lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
root media -wi-ao 13.76g
swap_1 media -wi-ao 1.00g
root@media:~# vgs
VG #PV #LV #SN Attr VSize VFree
media 2 2 0 wz--n- 14.76g 0
Best Answer
Why not make your life easier and use LVM for the extension? If I was on your place, I would backup the data from the server (20 GB are not much at all), then:
Partition
/dev/sda
:As
/dev/sda1
is in use the changes will be visible after reboot. Thenfdisk -l /dev/sda
will output:Add
/dev/sda2
to LVM, create volume group and partition:Advantage of this setup: flexibility. The logical volume size may be smaller than the volume group, hence the filesystem will be smaller too. Then to increase the size, use
lvextend
and increase the filesystem afterwards.Disadvantage: have to delete all partitions, backup and restore the data.