badblocks 执行耗时技术
这也太耗时了吧？
pi@raspberrypi:~/bak $ sudo badblocks -sw -v /dev/sda > badsectors.txt Checking for bad blocks in read-write mode From block 0 to 3907018583 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: 15.19% done, 45:33:10 elapsed. (0/0/0 errors)
看看 arch 官方文档
Read-write test (warning: destructive) This test is primarily for testing new drives and is a read-write test. As the pattern is written to every accessible block, the device effectively gets wiped. The default is an extensive test with four passes using four different patterns: 0xaa (10101010), 0x55 (01010101), 0xff (11111111) and 0x00 (00000000). For some devices this will take a couple of days to complete. # badblocks -wsv /dev/device Checking for bad blocks in read-write mode From block 0 to 488386583 Testing with pattern 0xaa: done Reading and comparing: done Testing with pattern 0x55: done Reading and comparing: done Testing with pattern 0xff: 22.93% done, 4:09:55 elapsed. (0/0/0 errors) [...] Testing with pattern 0x00: done Reading and comparing: done Pass completed, 0 bad blocks found. (0/0/0 errors)
A couple of days 慢慢等吧？
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