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1) Když zadám mount -o ro /dev/sda2 /nekam tak to píše to stejné - wrong fs type, bad option, bad superblock on /dev/sda2, missing codepage or helper progam, or other error

2) Když zadám smartctl -a /dev/sda odpověď je: smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION === Model Family: Western Digital AV-GP Device Model: WDC WD5000AVDS-73U7B1 Serial Number: WD-WCAV9M397900 LU WWN Device Id: 5 0014ee 1593b3fb8 Firmware Version: 01.00A01 User Capacity: 500.107.862.016 bytes [500 GB] Sector Size: 512 bytes logical/physical Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS (minor revision not indicated) SATA Version is: SATA 2.6, 3.0 Gb/s Local Time is: Fri Apr 3 13:18:14 2020 CEST SMART support is: Available - device has SMART capability. SMART support is: Enabled

=== START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED

General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: (11580) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 136) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x3037) SCT Status supported. SCT Feature Control supported. SCT Data Table supported.

SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 600 3 Spin_Up_Time 0x0027 193 186 021 Pre-fail Always - 3341 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 343 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 001 001 000 Old_age Always - 72811 10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 341 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 339 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 3 194 Temperature_Celsius 0x0022 110 087 000 Old_age Always - 33 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 2 198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0

SMART Error Log Version: 1 ATA Error Count: 370 (device log contains only the most recent five errors) CR = Command Register [HEX] FR = Features Register [HEX] SC = Sector Count Register [HEX] SN = Sector Number Register [HEX] CL = Cylinder Low Register [HEX] CH = Cylinder High Register [HEX] DH = Device/Head Register [HEX] DC = Device Command Register [HEX] ER = Error register [HEX] ST = Status register [HEX] Powered_Up_Time is measured from power on, and printed as DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes, SS=sec, and sss=millisec. It "wraps" after 49.710 days.

SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay.

3) když zadám gdisk -l /dev/sda odpově=d je: PT fdisk (gdisk) version 1.0.3

Partition table scan: MBR: MBR only BSD: not present APM: not present GPT: not present

*************************************************************** Found invalid GPT and valid MBR; converting MBR to GPT format in memory. ***************************************************************

Disk /dev/sda: 976773168 sectors, 465.8 GiB Model: WDC WD5000AVDS-7 Sector size (logical/physical): 512/512 bytes Disk identifier (GUID): 66DB574F-4266-4595-871B-F96F82B1C4BB Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 976773134 Partitions will be aligned on 8-sector boundaries Total free space is 5099 sectors (2.5 MiB)

Number Start (sector) End (sector) Size Code Name 1 63 8016434 3.8 GiB 0700 Microsoft basic data 2 8016435 976768064 461.9 GiB 8300 Linux filesystem

Jedná se o zařízení na nahrávání z kamer - 4 kanály H264 Digital video Recorder, kde jsou videosoubory, které nejdou exportovat. jsou tam videa která když spusím, se po určité době zaseknou. Takže tam soubory jsou, ale nemůžu je vytáhnout, tak to zkouším přes Linux.

Díky za rady