E2fsprogs/badblocks

badblocks is a small program for stress testing block devices. Similar to memtest86+, badblocks reads and writes small patterns of bytes to block devices.

Installation

Emerge

badblocks comes as part of the sys-fs/e2fsprogs package and should be available as part of the default system profile.

Usage

Invocation

user $badblocks

Expand

Usage: /sbin/badblocks [-b block_size] [-i input_file] [-o output_file] [-svwnf]
       [-c blocks_at_once] [-d delay_factor_between_reads] [-e max_bad_blocks]
       [-p num_passes] [-t test_pattern [-t test_pattern [...]]]
       device [last_block [first_block]]

Test a drive

To test a drive with visual progress use the -s and -w options followed by the path to the block device.

Warning
All data on the device will be completely overwritten and destroyed; be sure to create backups as needed to preserve data that should be saved!

root #badblocks -s -w /dev/<device>

Replace <device> in the command above with the block device that is to be tested. badblocks should run through a series of four tests and return output similar to the following:

Testing with pattern 0xaa: done
Reading and comparing: done
Testing with pattern 0x55: done
Reading and comparing: done
Testing with pattern 0xff: done
Reading and comparing: done
Testing with pattern 0x00: done
Reading and comparing: done

See also

• memtest86+ - A memory (RAM) tester based on the original memtest86 program.

External resources

• badblocks on Arch wiki