qcow2镜像文件瘦身 配置
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使用dd命令将客户机未使用的磁盘空间用0填满
% t( g, r. R( [" D' ^9 H$dd if=/dev/zero of=~/junk
) B# z% `* p* A4 J2 m6 j! l! O/ bdd: writing to `/home/***/junk’: No space left on device # Q' Z9 z& i+ t$ y6 Z) ]5 Q, M
而后
" Q- v. f p' M$rm junk
/ k. L# i( o+ b1 C$ U b' J关闭客户机
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, }7 L+ r# i6 v/ T( h5 u A6 [qemu-img check debian.qcow2
# Q" e. j; H% R8 g6 g9 b/ O( @No errors were found on the image." K! y2 U. d/ w
74133/81920 = 90.49% allocated, 0.00% fragmented, 0.00% compressed clusters
. Y9 s2 Q! D. N- O2 S. SImage end offset: 4859428864
/ I. D3 X o( g$ [ r" _' k[root@controller src]# qemu-img convert -c -O qcow2 debian.qcow2 debian.qcow2.qcow2
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发表于 2022-6-28 15:02:49