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You need to turn on advanced package view and update the package list, or just install it from the command line:

Code: 
humax# opkg update && opkg install hdparm
 
Code: 
humax# /mod/sbin/hdparm --read-sector 410253531 /dev/sda
 
/dev/sda:
reading sector 410253531: FAILED: Input/output error
humax# /mod/sbin/hdparm --read-sector 410253532 /dev/sda
 
/dev/sda:
reading sector 410253532: succeeded
0113 6172 1b77 8508 a886 0d9b 0004 0113
6172 1a77 8508 a886 519a 0004 0113 6172
1977 8508 a886 159a 0004 0113 6172 1877
0900 8685 dfa7 0448 1500 3501 696d 1e6e
850b a886 1093 0004 0119 6f68 7275 796c
082d 8685 eea7 044a 1300 7201 7761 091c
8685 eda7 0450 1500 3501 696d 1c6e 850a
a786 78e8 0004 0117 3531 696d 1c6e 8508
a786 76e1 0004 0113 6172 1e77 0200 00d4
a10f 0418 1500 3501 696d 236e 8508 a786
3ae1 0004 0113 6172 1e77 8508 a786 7ee0
0004 0113 6172 1e77 8508 a786 42e0 0004
0113 6172 1c77 8508 a786 50df 0004 0113
6172 1c77 1b03 0f00 48df 0004 0115 6d35
6e69 081e 8685 dea7 0455 1300 7201 7761
081b 8685 dea7 0415 1300 7201 7761 081b
8685 dda7 0459 1300 7201 7761 081a 8685
dda7 041d 1300 7201 7761 0319 0063 a10f
0418 1500 3501 696d 236e 8508 a786 62dc
0004 0113 6172 1977 8508 a786 25dc 0004
0113 6172 1877 8508 a786 6adb 0004 0113
6172 1777 8508 a786 78da 0004 0113 6172
1677 0303 009c ef0f 044c 1500 3501 696d
376e 8508 a486 2df3 0004 0113 6172 3477
8508 a486 71f2 0004 0113 6172 3677 8508
a486 7ef1 0004 0113 6172 3677 e303 0f00
78f1 0004 0115 6d35 6e69 0836 8685 f1a4
0406 1300 7201 7761 0837 8685 f0a4 0445
1300 7201 7761 0837 8685 f0a4 0409 1300
7201 7761 0837 8685 efa4 044d 1300 7201
7761 0037 0000 da0f 0470 1500 3501 696d
196e 8508 a486 11ef 0004 0113 6172 3777
 
Excellent, so it should be possible to force a sector repair with the following. Please be careful to get the sector number exactly right.

Code: 
humax# /mod/sbin/hdparm --repair-sector 410253531 --yes-i-know-what-i-am-doing /dev/sda
 
Black Hole said:
I've had a quick read up and the syntax looks OK. All I can offer are the obvious: is there a /dev/sda and is it writable?
Click to expand...
Thanks - any review is helpful. The output shows that the command ran for over 7 seconds which implies it did properly seek through the disk towards the bad block but for some reason it couldn't write to it.
Apparently there are errors which cause dd to fail but hdparm --repair-sector should work as it performs the operation directly on the disk.
 
By the way, I did have advanced packages turned on from about 2 years ago si I don't know what went wrong that it does not show hdparm in available. I installed it via cli. maybe it's firmware 2.15?
Code: 
humax# /mod/sbin/hdparm --repair-sector 410253531 --yes-i-know-what-i-am-doing /
dev/sda
 
/dev/sda:
re-writing sector 410253531: succeeded
 
How do the SMART attributes look now?

197 Current_Pending_Sector -O--C- 1 100 100 000 Old_age Always -
198 Offline_Uncorrectable ----C- 1 100 100 000 Old_age Offline -

and do you get any errors from the Humax disk check now?
 
197Current_Pending_Sector-O--C-0100100000Old_ageAlways-
198Offline_Uncorrectable----C-0100100000Old_ageOffline-
199UDMA_CRC_Error_Count-OSRCK0200200000Old_ageAlways-

HDD test pass

Pheeeew. I shall start mentioning you in my night prayers. :)
Did this error mean that my HDD is on its way out?
 
Looking good - the disk should be fine now. At least, the sector that was bad is fixed, it remains to be seen (from the Humax disk test) whether there are any more.
 
Hard disk test via on-screen Humax menus. Last time you got error code 8. Hopefully it will pass this time.
 
mihaid said:
Did this error mean that my HDD is on its way out?
Click to expand...
Probably not. A bad sector is going to occur from time to time - it's just that these AV/CE disks seem to handle it particularly badly. The most useful thing that will indicate a disk on the way out is a rapidly rising reallocated sector count in that table of parameters.
 
Ok, so my disk exhibits the same problem again. Hard disk test results in this
Code: 
No.
 
Description
 
Status
 
Remaining
 
When
 
First Error LBA
 
# 1 Short offline Completed without error  00%  7372  -
# 2 Short offline Completed without error  00%  4280  -
# 3 Short offline Completed: read failure  90%  4269  410253531
# 4 Short offline Completed: read failure  90%  4269  410253531
# 5 Short offline Completed: read failure  60%  4258  410253531

Do I need to run fix disk in maintenance?
 
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