I have a drive with this configuration:fdisk -lDisk /dev/sda: 500.1 GB, 500107862016 bytes255 heads, 63 sectors/track, 60801 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 4096 bytesI/O size (minimum/optimal): 4096 bytes / 4096 bytesDisk identifier: 0x000f1b8b   Device Boot      Start         End      Blocks   Id  System/dev/sda1   *           1        2612    20971520   83  Linux/dev/sda3           60736       60801      525312   82  Linux swap / SolarisThere is 478GB unallocated space, how would I go about adding this space to /dev/sda1 without losing the data that is currently on /dev/sda1? (the filesystem is ext4).NOTE: it is a server with only SSH, no GUI for running stuff like gparted.
How can I expand ext4 partition size on debian
debian;filesystems;partition
Enlarge the partition: fdisk -u /dev/sda.p to print the partition table, take note of the number, start, end, type of sda1.Delete it: d:Recreate it with same number (1), start and type but with a bigger end (taking care not to overlap with other partitions). Try to align things on a megabyte boundary that is for end, make it a multiple of 2048 minus 1. Change the type if needed with t (for partitions holding an extX or btrfs filesystem, the default of 83 is fine).Then w to write and q to quit.The partition table will have been modified but the kernel will not be able to take that into account as some partitions are mounted.However, if in-use partitions were only enlarged, you should be able to force the kernel to take the new layout with:partx /dev/sdaIf that fails, you'll need to reboot. The system should boot just fine.Then, resize the filesystem so it spreads to the extent of the enlarged partition:resize2fs /dev/sda1Which for ext4 will work just fine even on a live FS.