DDWRT and Saving an EXT2 Installation: Difference between revisions
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*To install any of the below utilities if they're missing: opk install XYZ | *To install any of the below utilities if they're missing: opk install XYZ | ||
*To change "boot" partition (IE, the one mounted to the OPT Directory): mount -o bind /tmp/mnt/sda_part1 /opt OR mount -o bind /tmp/mnt/sda_part2 /opt (part2 is the backup partition) | *To change "boot" partition (IE, the one mounted to the OPT Directory): mount -o bind /tmp/mnt/sda_part1 /opt OR mount -o bind /tmp/mnt/sda_part2 /opt (part2 is the backup partition) | ||
*To display information about a "disk" or file system: mount OR df OR dumpe2fs /dev/sdaX OR tune2fs -l /dev/sdaX | *To display information about a "disk" or file system: mount OR df OR dumpe2fs /dev/sdaX OR tune2fs -l /dev/sdaX (that's a lowercase L) | ||
**tune2fs -c -1 /dev/sdaX: sets it to never check | **tune2fs -c -1 /dev/sdaX: sets it to never check | ||
*To "CHKDSK" a file system:e2fsck -v -p /dev/sdaX OR fsck.ext2 (-v is for Verbose, -p automatically repairs, -t is file system type but is not available) (remember, make sure it is not mounted) (to install utility, with additional utilities for other stuff:opkg install e2fsprogs) | *To "CHKDSK" a file system:e2fsck -v -p /dev/sdaX OR fsck.ext2 (-v is for Verbose, -p automatically repairs, -t is file system type but is not available) (remember, make sure it is not mounted) (to install utility, with additional utilities for other stuff:opkg install e2fsprogs) | ||
**umount /dev/sdaX (some services like smb and proftpd might be using the partition, so stop) | **umount /dev/sdaX (some services like smb and proftpd might be using the partition, so stop) | ||
**If it runs into issues or complains: e2fsck -v -y (-y answers yes to everything) | **If it runs into issues or complains: e2fsck -v -y (-y answers yes to everything) | ||
**mke2fs or mkfs.ext2 -L WhatEverLabel /dev/sdaX | *To Defragment: e2defrag /dev/sdaX (again, make sure to unmount device, umount /dev/sdaX) | ||
*To format an EXT2 paritition: mke2fs or mkfs.ext2 -L WhatEverLabel /dev/sdaX | |||
**Remember to un-mount it first: umount /dev/sdaX (see smb and proftpd notes above) | |||
**...wait FOREVER if it is a USB drive (about an hour for a small EXT2 partition on a USB 2.0 port) | **...wait FOREVER if it is a USB drive (about an hour for a small EXT2 partition on a USB 2.0 port) | ||
* | **If one forgets to change the label during format: tune2fs –L WhatEverName /dev/sdaX | ||
* | **And don't forget to copy everything back over: cp -ax /tmp/mnt/sda_partX /tmp/mnt/sda_partY (turns out -x is not available in the Entware Version) | ||
*General Information: | *General Information: | ||
**SuperBlock: 1st one typically at 32768 | **SuperBlock: 1st one typically at 32768 | ||
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