Difference between revisions of "Resize-rootfs"
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| − | + | {{Title|How to resize a root_fs filesystem}} | |
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| + | == Manually == | ||
<ol> | <ol> | ||
<li>Increasing the size of a root-filesystem:</li> | <li>Increasing the size of a root-filesystem:</li> | ||
| − | + | e2fsck -f root_fs_tutorial-0.31 | |
| − | + | dd if=/dev/zero of=root_fs_tutorial-0.31 bs=1 count=1 seek=550M conv=notrunc | |
| − | + | resize2fs -p root_fs_tutorial-0.31 | |
| − | + | e2fsck -f root_fs_tutorial-0.31 | |
<li>Downsizing a root-filesystem:</li> | <li>Downsizing a root-filesystem:</li> | ||
| Line 13: | Line 15: | ||
<li>Create a new rootfilesystem with the size you want your filesystem to have:</li> | <li>Create a new rootfilesystem with the size you want your filesystem to have:</li> | ||
| − | + | dd if=/dev/zero of=newfs bs=1 count=1 seek=1200M conv=notrunc | |
| − | + | mkfs -t ext2 newfs # Change the filesystem type to your needs (ext3, etc) | |
<li>Copy the old filesystem content to the new one:</li> | <li>Copy the old filesystem content to the new one:</li> | ||
| − | + | mount -o loop oldfs /mnt/old/ | |
| − | + | mount -o loop newfs /mnt/new | |
| − | + | cp -a /mnt/old/* /mnt/new/ | |
| − | + | umount /mnt/old /mnt/new | |
</ul> | </ul> | ||
</ol> | </ol> | ||
| + | |||
| + | <h2>Using uml_resize</h2> | ||
| + | |||
| + | The uml_resize that comes with the VNUML package can be also use to resize root filesystems. Look at the man page to know how it works: | ||
| + | |||
| + | man uml_resize | ||
| + | |||
| + | Currently, only allows increasing the size, not decreasing. | ||
Latest revision as of 13:28, 20 June 2007
How to resize a root_fs filesystem
Manually
- Increasing the size of a root-filesystem:
- Downsizing a root-filesystem:
- Create a new rootfilesystem with the size you want your filesystem to have:
- Copy the old filesystem content to the new one:
e2fsck -f root_fs_tutorial-0.31 dd if=/dev/zero of=root_fs_tutorial-0.31 bs=1 count=1 seek=550M conv=notrunc resize2fs -p root_fs_tutorial-0.31 e2fsck -f root_fs_tutorial-0.31
dd if=/dev/zero of=newfs bs=1 count=1 seek=1200M conv=notrunc mkfs -t ext2 newfs # Change the filesystem type to your needs (ext3, etc)
mount -o loop oldfs /mnt/old/ mount -o loop newfs /mnt/new cp -a /mnt/old/* /mnt/new/ umount /mnt/old /mnt/new
Using uml_resize
The uml_resize that comes with the VNUML package can be also use to resize root filesystems. Look at the man page to know how it works:
man uml_resize
Currently, only allows increasing the size, not decreasing.
