Public bug reported: Hi,
I was looking at a recent, pre-built Pandaboard image <http://cdimage.ubuntu.com/ubuntu-netbook/daily-preinstalled/current /natty-preinstalled-netbook-armel+omap4.img.gz> (retrieved on 11 Feb 2011). It has two partitions that don't quite fill the image file: # gunzip natty-preinstalled-netbook-armel+omap4.img.gz # sfdisk -uS -l natty-preinstalled-netbook-armel+omap4.img Disk natty-preinstalled-netbook-armel+omap4.img: cannot get geometry Disk natty-preinstalled-netbook-armel+omap4.img: 247 cylinders, 255 heads, 63 sectors/track Units = sectors of 512 bytes, counting from 0 Device Boot Start End #sectors Id System natty-preinstalled-netbook-armel+omap4.img1 * 63 144584 144522 c W95 FAT32 (LBA) natty-preinstalled-netbook-armel+omap4.img2 144585 3968054 3823470 83 Linux natty-preinstalled-netbook-armel+omap4.img3 0 - 0 0 Empty natty-preinstalled-netbook-armel+omap4.img4 0 - 0 0 Empty # echo $((3823470 * 512)) 1957616640 The second partition size is 3823470 sectors (1957616640 bytes), but it contains a ext3 filesystem that is larger than the partition (479269*4096 = 1963085824 bytes): # losetup --show --find --offset $((144585*512)) --sizelimit $((3823470*512)) natty-preinstalled-netbook-armel+omap4.img /dev/loop0 # e2fsck /dev/loop0 e2fsck 1.41.12 (17-May-2010) The filesystem size (according to the superblock) is 479269 blocks The physical size of the device is 477933 blocks Either the superblock or the partition table is likely to be corrupt! Abort<y>? y yes # tune2fs -l /dev/loop0 ... Block count: 479269 ... Block size: 4096 ... # echo $((479269 * 4096)) 1963085824 Is this the right place to file a bug report about this? [ Fortunately the filesystem does end before the end of the image file: # ls -l natty-preinstalled-netbook-armel+omap4.img -rw-r--r-- 1 xxxxxxxx xxxxxxxx 2038583296 2011-02-11 12:44 natty-preinstalled-netbook-armel+omap4.img # echo $((144585*512 + 1963085824)) 2037113344 And e2fsck is happy if I leave out the --sizelimit. But the --sizelimit is valid. ] ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/717105 Title: file system larger than partition in pre-built omap4 image -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
