Fedora :: How To Resize Existing Partition Without Data Loss

Dec 4, 2009

In the process of preupgrading to FC12. Towards the end of the process I get a warning that my /boot partition isn't big enough (12 recommends minimum of 300Mb).

My disks:
[root@fatbeast boot]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_fatbeast-lv_root
35G 6.6G 28G 20% /
/dev/sda1 194M 176M 8.4M 96% /boot
/dev/mapper/vg_fatbeast-LogVol02
29G 25G 3.2G 89% /home
tmpfs 1.9G 676K 1.9G 1% /dev/shm
/dev/sdb 7.5G 319M w7.2G 5% /media/CDF2-6BE2
[root@fatbeast boot]#

Is there a tool I can use to resize my existing partitions WITHOUT data loss? I've been using gparted up to now for sorting partition stuff, does that maintain data when resizing (assuming I run from a boot CD or USB rather than a running system)?

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Ubuntu :: Safely Resize A Partition Like Adding The Extra Space Without Touching The Existing Data?

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I have a BIG extended partition. It's at about 750Gb. Aside from that, I have 2 unallocated spaces, one at 240Gb and one at 5Gb. I want to make one of my storage drives bigger, and so that I can take advantage of all the space I have. (Those 250Gb have been unused for ages. I want to use them for my growing libraries.) So I wonder: would it be safe to put these smaller "chunks" into the extended partition, and still have a working systen? I don't want to mess it all up.

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[Code]....

As for the first entries, they're unallocated. They're the primary drives, but they don't exist. I'm actually considering to move my partitions out of the extended one, because I only have 3 partitions that I use and will ever use. But if the extended partition is not a problem, I will just keep it this way.

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[code]...

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Ok so I have one drive. /boot /lv_root and /lv_swap

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[URL]

Quote:

Originally Posted by source

#I've tried to shrink the PV with pvresize which didn't throw errors -

Good.

#but fdisk still shows me the same LVM partition size as before.

That's normal. pvresize "just" updates the PV header and VG metadata.

#So I guess the partition table has to be modified somehow?

Yes. That was mentioned in my reply: "Then shrink the partition in the partition table."

You can use fdisk or any other partition table editor for this. Some don't support resizing a partition. In that case, you can delete and create a smaller one. If doing the delete/create dance, you *must* create the new partition on the same cylinder boundary as the current one to preserve the current data.

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