Gentoo Archives: gentoo-user

From: "J. Roeleveld" <joost@××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Freeing up disk space problem!!
Date: Wed, 29 Feb 2012 07:44:30
Message-Id: 122ff897b0eea31e5fa4119bd8c464f5.squirrel@www.antarean.org
In Reply to: Re: [gentoo-user] Freeing up disk space problem!! by Dale
1 On Wed, February 29, 2012 8:10 am, Dale wrote:
2 > Neil Bothwick wrote:
3 >> On Tue, 28 Feb 2012 20:38:13 -0600, Dale wrote:
4 >>
5 >>> tune2fs -m 1 /dev/data/data1
6 >>>
7 >>> Which is where the ext4 file system is on the LVM. After I run that
8 >>> then I can expand LVM from there, I hope it works that easy.
9 >>
10 >> It does.
11 >>
12 >>
13 >
14 >
15 > Apparently I am missing something then. I looked at cfdisk for the
16 > drive. It reported right at 750Gb as it should with the change. Thing
17 > is, I can't get anything else to add it or to even show it is available.
18 > Some results somewhat shortened:
19 >
20 > From cfdisk
21 >
22 > 750156.38Mb
23 >
24 > root@fireball / # pvs
25 > PV VG Fmt Attr PSize PFree
26 > /dev/sdc1 data lvm2 a-- 698.63g 0
27 > root@fireball / # vgs
28 > VG #PV #LV #SN Attr VSize VFree
29 > data 1 1 0 wz--n- 698.63g 0
30 > root@fireball / # lvs
31 > LV VG Attr LSize Origin Snap% Move Log Copy% Convert
32 > data1 data -wi-ao 698.63g
33 > root@fireball / #
34 >
35 >
36 > So, cfdisk is happy with the change but nothing else seems to see it.
37 > What am I missing here? Where did the 50Gbs go to?
38 >
39 > Dale
40
41 What you're missing here is the fact that different tools report the sizes
42 differently.
43 Look into the difference between "GiB" and "GB":
44
45 http://en.wikipedia.org/wiki/Mebibyte
46
47 you have:
48 750156.38 MiB =
49 750156380 KiB =
50 750156380000 B =
51 732574589.8 KB =
52 715404.87 MB =
53 698.63 GB
54
55 (with the "i" the factor is 1000, without it, the factor is 1024)
56
57 HTH,
58
59 Joost