I have a 500GB((131072000*4096)/1024^3) ext3 filesystem: root@debian:~#dumpe2fs /dev/sda9 | egrep "Block count|Block size" dumpe2fs 1.41.12 (17-May-2010) Block count: 131072000 Block size: 4096 root@debian:~#
..on a 904GB((1953523711-56924160)*512)/(1024^3) partition(sda9): root@debian:~#fdisk -cul /dev/sda Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x00062a0f Device Boot Start End Blocks Id System /dev/sda1 * 2048 684031 340992 83 Linux /dev/sda2 686078 1953523711 976418817 5 Extended /dev/sda5 686080 18262015 8787968 83 Linux /dev/sda6 18264064 24121343 2928640 83 Linux /dev/sda7 24123392 56141823 16009216 82 Linux swap / Solaris /dev/sda8 56143872 56922111 389120 83 Linux /dev/sda9 56924160 1953523711 948299776 83 Linux root@debian:~# At the moment everything works, but if I shrink the size of the /dev/sda9 partition from the beginning of the partition like this(sda9 is now 693GB which is more than enough to hold the 500GB file system): root@debian:~#fdisk -cul /dev/sda Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x00062a0f Device Boot Start End Blocks Id System /dev/sda1 * 2048 684031 340992 83 Linux /dev/sda2 686078 1953523711 976418817 5 Extended /dev/sda5 686080 18262015 8787968 83 Linux /dev/sda6 18264064 24121343 2928640 83 Linux /dev/sda7 24123392 56141823 16009216 82 Linux swap / Solaris /dev/sda8 56143872 56922111 389120 83 Linux /dev/sda9 500000000 1953523711 726761856 83 Linux root@debian:~# ..then file system is broken: root@debian:~#dumpe2fs /dev/sda9 dumpe2fs 1.41.12 (17-May-2010) dumpe2fs: Bad magic number in super-block while trying to open /dev/sda9 Couldn't find valid filesystem superblock. root@debian:~# Is it possible to make partition smaller starting from the beginning? If yes, do I need to somehow start file system from the end of the partition? regards, martin -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAJx5YvHKWV_b5X_G=j4dG7F=av8tk-cwdrqetwe+iowuzpk...@mail.gmail.com
