How do I resize a partition on an img file?
I have a puppy linux img that is 8gb but I need it to fit on a 6gb drive. How do I resize the ext2 partition on the img?
partition disk-image puppy-linux
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I have a puppy linux img that is 8gb but I need it to fit on a 6gb drive. How do I resize the ext2 partition on the img?
partition disk-image puppy-linux
add a comment |
I have a puppy linux img that is 8gb but I need it to fit on a 6gb drive. How do I resize the ext2 partition on the img?
partition disk-image puppy-linux
I have a puppy linux img that is 8gb but I need it to fit on a 6gb drive. How do I resize the ext2 partition on the img?
partition disk-image puppy-linux
partition disk-image puppy-linux
asked Dec 4 '15 at 1:16
Benjily3Benjily3
11
11
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2 Answers
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You'll want to shrink the filesystem - any kind of logical volume management or similar containers - then the image. I'm going to assume you're talking about a RAW disk image.
Steps at a glance:
- Ensure the image is not being accessed (ex:
lsof
) - Shrink the filesystem (ex:
resize2fs
) - Perform a filesystem check (ex:
fsck
) - Shrink any LVM or other kind of containers (if needed)
- Shrink the disk image (ex: dd to a new image with skip or use
qemu-img
) - Fsck again, test that it works!
Alternative:
- Create a new image and copy the data / MBR / etc. over.
- Clone the image with something like partclone
Similar questions:
- https://superuser.com/questions/24838/is-it-possible-to-resize-a-qemu-disk-image
Reference:
- http://lnx.cx/docs/vdg/html/ch02s02.html
- https://major.io/2010/12/14/mounting-a-raw-partition-file-made-with-dd-or-dd_rescue-in-linux/
- http://www.tehfear.com/2007/10/08/resize-loop-disk-image/
- https://wiki.archlinux.org/index.php/Disk_cloning
add a comment |
NOTE Make a backup, anything can go wrong ...
I ran all those as root :
- bind a loop device to the image:
losetup /dev/loop10 $image_file
- refresh partitions:
partprobe /dev/loop10
- adjust partition size:
gparted /dev/loop10
- undo the loop:
losetup -d /dev/loop10
- remove unwanted space:
truncate -s -${SIZE}G $image_file
(you might want to calculate the exact size based on values fromfdisk
/cfdisk
*sector size
)
New contributor
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You'll want to shrink the filesystem - any kind of logical volume management or similar containers - then the image. I'm going to assume you're talking about a RAW disk image.
Steps at a glance:
- Ensure the image is not being accessed (ex:
lsof
) - Shrink the filesystem (ex:
resize2fs
) - Perform a filesystem check (ex:
fsck
) - Shrink any LVM or other kind of containers (if needed)
- Shrink the disk image (ex: dd to a new image with skip or use
qemu-img
) - Fsck again, test that it works!
Alternative:
- Create a new image and copy the data / MBR / etc. over.
- Clone the image with something like partclone
Similar questions:
- https://superuser.com/questions/24838/is-it-possible-to-resize-a-qemu-disk-image
Reference:
- http://lnx.cx/docs/vdg/html/ch02s02.html
- https://major.io/2010/12/14/mounting-a-raw-partition-file-made-with-dd-or-dd_rescue-in-linux/
- http://www.tehfear.com/2007/10/08/resize-loop-disk-image/
- https://wiki.archlinux.org/index.php/Disk_cloning
add a comment |
You'll want to shrink the filesystem - any kind of logical volume management or similar containers - then the image. I'm going to assume you're talking about a RAW disk image.
Steps at a glance:
- Ensure the image is not being accessed (ex:
lsof
) - Shrink the filesystem (ex:
resize2fs
) - Perform a filesystem check (ex:
fsck
) - Shrink any LVM or other kind of containers (if needed)
- Shrink the disk image (ex: dd to a new image with skip or use
qemu-img
) - Fsck again, test that it works!
Alternative:
- Create a new image and copy the data / MBR / etc. over.
- Clone the image with something like partclone
Similar questions:
- https://superuser.com/questions/24838/is-it-possible-to-resize-a-qemu-disk-image
Reference:
- http://lnx.cx/docs/vdg/html/ch02s02.html
- https://major.io/2010/12/14/mounting-a-raw-partition-file-made-with-dd-or-dd_rescue-in-linux/
- http://www.tehfear.com/2007/10/08/resize-loop-disk-image/
- https://wiki.archlinux.org/index.php/Disk_cloning
add a comment |
You'll want to shrink the filesystem - any kind of logical volume management or similar containers - then the image. I'm going to assume you're talking about a RAW disk image.
Steps at a glance:
- Ensure the image is not being accessed (ex:
lsof
) - Shrink the filesystem (ex:
resize2fs
) - Perform a filesystem check (ex:
fsck
) - Shrink any LVM or other kind of containers (if needed)
- Shrink the disk image (ex: dd to a new image with skip or use
qemu-img
) - Fsck again, test that it works!
Alternative:
- Create a new image and copy the data / MBR / etc. over.
- Clone the image with something like partclone
Similar questions:
- https://superuser.com/questions/24838/is-it-possible-to-resize-a-qemu-disk-image
Reference:
- http://lnx.cx/docs/vdg/html/ch02s02.html
- https://major.io/2010/12/14/mounting-a-raw-partition-file-made-with-dd-or-dd_rescue-in-linux/
- http://www.tehfear.com/2007/10/08/resize-loop-disk-image/
- https://wiki.archlinux.org/index.php/Disk_cloning
You'll want to shrink the filesystem - any kind of logical volume management or similar containers - then the image. I'm going to assume you're talking about a RAW disk image.
Steps at a glance:
- Ensure the image is not being accessed (ex:
lsof
) - Shrink the filesystem (ex:
resize2fs
) - Perform a filesystem check (ex:
fsck
) - Shrink any LVM or other kind of containers (if needed)
- Shrink the disk image (ex: dd to a new image with skip or use
qemu-img
) - Fsck again, test that it works!
Alternative:
- Create a new image and copy the data / MBR / etc. over.
- Clone the image with something like partclone
Similar questions:
- https://superuser.com/questions/24838/is-it-possible-to-resize-a-qemu-disk-image
Reference:
- http://lnx.cx/docs/vdg/html/ch02s02.html
- https://major.io/2010/12/14/mounting-a-raw-partition-file-made-with-dd-or-dd_rescue-in-linux/
- http://www.tehfear.com/2007/10/08/resize-loop-disk-image/
- https://wiki.archlinux.org/index.php/Disk_cloning
edited Mar 20 '17 at 10:18
Community♦
1
1
answered Dec 4 '15 at 2:36
Criveti MihaiCriveti Mihai
83848
83848
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add a comment |
NOTE Make a backup, anything can go wrong ...
I ran all those as root :
- bind a loop device to the image:
losetup /dev/loop10 $image_file
- refresh partitions:
partprobe /dev/loop10
- adjust partition size:
gparted /dev/loop10
- undo the loop:
losetup -d /dev/loop10
- remove unwanted space:
truncate -s -${SIZE}G $image_file
(you might want to calculate the exact size based on values fromfdisk
/cfdisk
*sector size
)
New contributor
add a comment |
NOTE Make a backup, anything can go wrong ...
I ran all those as root :
- bind a loop device to the image:
losetup /dev/loop10 $image_file
- refresh partitions:
partprobe /dev/loop10
- adjust partition size:
gparted /dev/loop10
- undo the loop:
losetup -d /dev/loop10
- remove unwanted space:
truncate -s -${SIZE}G $image_file
(you might want to calculate the exact size based on values fromfdisk
/cfdisk
*sector size
)
New contributor
add a comment |
NOTE Make a backup, anything can go wrong ...
I ran all those as root :
- bind a loop device to the image:
losetup /dev/loop10 $image_file
- refresh partitions:
partprobe /dev/loop10
- adjust partition size:
gparted /dev/loop10
- undo the loop:
losetup -d /dev/loop10
- remove unwanted space:
truncate -s -${SIZE}G $image_file
(you might want to calculate the exact size based on values fromfdisk
/cfdisk
*sector size
)
New contributor
NOTE Make a backup, anything can go wrong ...
I ran all those as root :
- bind a loop device to the image:
losetup /dev/loop10 $image_file
- refresh partitions:
partprobe /dev/loop10
- adjust partition size:
gparted /dev/loop10
- undo the loop:
losetup -d /dev/loop10
- remove unwanted space:
truncate -s -${SIZE}G $image_file
(you might want to calculate the exact size based on values fromfdisk
/cfdisk
*sector size
)
New contributor
New contributor
answered 11 mins ago
aboabo
1
1
New contributor
New contributor
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