{"id":1348,"date":"2012-09-06T11:10:58","date_gmt":"2012-09-06T03:10:58","guid":{"rendered":"http:\/\/rmohan.com\/?p=1348"},"modified":"2012-09-06T11:10:58","modified_gmt":"2012-09-06T03:10:58","slug":"changing-fs-type-from-ext3-to-ext4-in-linux","status":"publish","type":"post","link":"https:\/\/mohan.sg\/?p=1348","title":{"rendered":"Changing FS type from ext3 to ext4 in Linux"},"content":{"rendered":"<p> Now changing the ext3 FS to the ext4 FS type depends on the Requirement.<br \/> =========================================================================<\/p>\n<p> =====&gt;&gt; check the fs type by the below information<\/p>\n<p> [root@servername ~]# mount | grep -i media<\/p>\n<p> \/dev\/mapper\/vg3-media1 on \/media type ext3 (rw)<\/p>\n<p> =====&gt;&gt; also check in the fstab file<\/p>\n<p> [root@servername ~]# cat \/etc\/fstab<br \/> \/dev\/vg0\/root \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 1<br \/> \/dev\/vg0\/var \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/var \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/tmp \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/tmp \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/usr \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/usr \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/opt \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/opt \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/home \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/home \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> LABEL=\/boot \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/boot \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> tmpfs \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/dev\/shm \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0tmpfs \u00a0 defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> devpts \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/dev\/pts \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0devpts \u00a0gid=5,mode=620 \u00a00 0<br \/> sysfs \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/sys \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0sysfs \u00a0 defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> proc \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/proc \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 proc \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> \/dev\/vg0\/swap \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 swap \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0swap \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> \/dev\/mapper\/vg1-lv0 \u00a0 \u00a0 \/data \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults,user_xattr \u00a0 \u00a0 1 2<br \/> #\/dev\/mapper\/vg2-media \u00a0\/media \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext4 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/mapper\/vg3-media1 \u00a0\/media \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<\/p>\n<p> ======&gt;&gt; umount the FS and give the below 2 commands and mount it with ext4 type.<\/p>\n<p> [root@servername ~]# tune4fs -O extents,uninit_bg,dir_index \/dev\/vg3\/media1<br \/> tune4fs 1.41.9 (22-Aug-2009)<\/p>\n<p> Please run e4fsck on the filesystem.<\/p>\n<p> [root@servername ~]# fsck.ext4 -fDC0 \/dev\/vg3\/media1<br \/> e4fsck 1.41.9 (22-Aug-2009)<\/p>\n<p> Do you really want to continue (y\/n)? yes<\/p>\n<p> \/dev\/vg3\/media1: recovering journal<\/p>\n<p> \/dev\/vg3\/media1: ***** FILE SYSTEM WAS MODIFIED *****<\/p>\n<p> =======&gt;&gt; now check the FS type has been changed to the ext4 type from ext3 as shown below.<\/p>\n<p> [root@servername ~]# mount | grep -i media<\/p>\n<p> \/dev\/mapper\/vg3-media1 on \/media type ext4 (rw)<\/p>\n<p> =======&gt;&gt; Now change the FS type in the \/etc\/fstab to ext4 type.<\/p>\n<p> [root@servername ~]# cat \/etc\/fstab<br \/> \/dev\/vg0\/root \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 1<br \/> \/dev\/vg0\/var \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/var \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/tmp \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/tmp \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/usr \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/usr \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/opt \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/opt \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/vg0\/home \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/home \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> LABEL=\/boot \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/boot \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> tmpfs \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/dev\/shm \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0tmpfs \u00a0 defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> devpts \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/dev\/pts \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0devpts \u00a0gid=5,mode=620 \u00a00 0<br \/> sysfs \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/sys \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0sysfs \u00a0 defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> proc \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/proc \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 proc \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> \/dev\/vg0\/swap \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 swap \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0swap \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a00 0<br \/> \/dev\/mapper\/vg1-lv0 \u00a0 \u00a0 \/data \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ext3 \u00a0 \u00a0defaults,user_xattr \u00a0 \u00a0 1 2<br \/> #\/dev\/mapper\/vg2-media \u00a0\/media \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext4 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<br \/> \/dev\/mapper\/vg3-media1 \u00a0\/media \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ext4 \u00a0 \u00a0defaults \u00a0 \u00a0 \u00a0 \u00a01 2<\/p>\n","protected":false},"excerpt":{"rendered":"<p> Now changing the ext3 FS to the ext4 FS type depends on the Requirement. =========================================================================<\/p>\n<p> =====&gt;&gt; check the fs type by the below information<\/p>\n<p> [root@servername ~]# mount | grep -i media<\/p>\n<p> \/dev\/mapper\/vg3-media1 on \/media type ext3 (rw)<\/p>\n<p> =====&gt;&gt; also check in the fstab file<\/p>\n<p> [root@servername ~]# cat \/etc\/fstab \/dev\/vg0\/root [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/1348"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1348"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/1348\/revisions"}],"predecessor-version":[{"id":1349,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/1348\/revisions\/1349"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}