| 2012-06-01 13:27:19 |
Scott Moser |
description |
$ truncate --size 1G my.img
$ echo "1,," | sfdisk my.img
$ fdisk -l my.img
Disk my.img: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders, total 2097152 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
my.img1 16065 2088449 1036192+ 83 Linux
# this is right, it can't be grown yet.
$ growpart --dry-run my.img 1
NOCHANGE: partition 1 is size 2072385. it cannot be grown
$ truncate --size 4G my.img
$ growpart --dry-run my.img 1
CHANGE: partition=1 start=16065 old: size=2072385 end=2088450 new: size=8369865,end=8385930
# === old sfdisk -d ===
# partition table of my.img
unit: sectors
my.img1 : start= 16065, size= 2072385, Id=83
my.img2 : start= 0, size= 0, Id= 0
my.img3 : start= 0, size= 0, Id= 0
my.img4 : start= 0, size= 0, Id= 0
# === new sfdisk -d ===
# partition table of my.img
unit: sectors
my.img1 : start= 16065, size= 2072385, Id=83
my.img2 : start= 0, size= 0, Id= 0
my.img3 : start= 0, size= 0, Id= 0
my.img4 : start= 0, size= 0, Id= 0
As shown above, it thinks it should change it, and actually even thinks it did, but it does not.
The issue here is that the change made in 'old' to 'new' is expecting '<file>1' to be at the beginning of the line, as it is when file is a device. But here, it is padded by some white space.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: cloud-utils 0.25-0ubuntu5
ProcVersionSignature: User Name 3.2.0-23.36-virtual 3.2.14
Uname: Linux 3.2.0-23-virtual x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
Date: Fri Jun 1 13:16:49 2012
Ec2AMI: ami-000000bf
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nova
Ec2InstanceType: m1.small
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
PackageArchitecture: all
ProcEnviron:
TERM=screen
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: cloud-utils
UpgradeStatus: No upgrade log present (probably fresh install) |
$ truncate --size 1G my.img
$ echo "1,," | sfdisk my.img
$ fdisk -l my.img
Disk my.img: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders, total 2097152 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
my.img1 16065 2088449 1036192+ 83 Linux
# this is right, it can't be grown yet.
$ growpart --dry-run my.img 1
NOCHANGE: partition 1 is size 2072385. it cannot be grown
$ truncate --size 4G my.img
$ growpart --dry-run my.img 1
CHANGE: partition=1 start=16065 old: size=2072385 end=2088450 new: size=8369865,end=8385930
# === old sfdisk -d ===
# partition table of my.img
unit: sectors
my.img1 : start= 16065, size= 2072385, Id=83
my.img2 : start= 0, size= 0, Id= 0
my.img3 : start= 0, size= 0, Id= 0
my.img4 : start= 0, size= 0, Id= 0
# === new sfdisk -d ===
# partition table of my.img
unit: sectors
my.img1 : start= 16065, size= 2072385, Id=83
my.img2 : start= 0, size= 0, Id= 0
my.img3 : start= 0, size= 0, Id= 0
my.img4 : start= 0, size= 0, Id= 0
As shown above, it thinks it should change it, and actually even thinks it did, but it does not.
The issue here is that the change made in 'old' to 'new' is expecting '<file>1' to be at the beginning of the line, as it is when file is a device. But here, it is padded by some white space.
a simple work around is to give a full path to the file, which will end up using that white space and making it work.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: cloud-utils 0.25-0ubuntu5
ProcVersionSignature: User Name 3.2.0-23.36-virtual 3.2.14
Uname: Linux 3.2.0-23-virtual x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
Date: Fri Jun 1 13:16:49 2012
Ec2AMI: ami-000000bf
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nova
Ec2InstanceType: m1.small
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
PackageArchitecture: all
ProcEnviron:
TERM=screen
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: cloud-utils
UpgradeStatus: No upgrade log present (probably fresh install) |
|
