qcow2镜像文件瘦身 配置3 F" }- E& ?) o+ D
4 A: r/ z) Y8 Z8 J. u5 ]& {2 q4 l使用dd命令将客户机未使用的磁盘空间用0填满
9 {5 L L& x% M" K' s; H2 Q$dd if=/dev/zero of=~/junk
; g1 C& M$ H$ p" _7 R% hdd: writing to `/home/***/junk’: No space left on device
. @* @+ _( h6 e( R而后
( b8 k2 \" _/ e% k h* s" X$ w2 o$rm junk 9 c2 P/ l5 O+ P: m0 Y( c
关闭客户机 ! y$ S/ F) q: t4 ^
. [' F7 y/ z+ Y) z. b
0 T9 n M4 q2 w' N
8 b; y* W$ B+ p# @: P7 Y, ?
# _! q7 e' U% a) v7 \; {2 t- C
qemu-img check debian.qcow2
( A& `/ X' @) K4 F1 a+ J, L5 K4 jNo errors were found on the image.
% p: y% `0 Z7 H% x6 X74133/81920 = 90.49% allocated, 0.00% fragmented, 0.00% compressed clusters
8 ~* C- p' _# bImage end offset: 4859428864 ! A" o9 @4 ?/ x# G' Q
[root@controller src]# qemu-img convert -c -O qcow2 debian.qcow2 debian.qcow2.qcow29 R: T) y9 p3 S: n2 N; C; f
) p8 r) R" d1 W
8 c- ]' O- ?/ W) L% F- Q
1 o- i2 l$ d+ M0 r( z$ V3 K. {
6 d y, J$ Q0 R9 F: ~* `/ | |
发表于 2022-6-28 15:02:49