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- # date: 2020_12_23
- # subject: odd sha512sum -c - reports failed when checksum matches ??
- # Download the Mageia 64bit netinstall iso:
- $ wget https://www.mirrorservice.org/sites/mageia.org/pub/mageia/distrib/7.1/x86_64/install/images/Mageia-7.1-netinstall-nonfree-x86_64.iso
- --2020-12-23 12:01:24-- https://www.mirrorservice.org/sites/mageia.org/pub/mageia/distrib/7.1/x86_64/install/images/Mageia-7.1-netinstall-nonfree-x86_64.iso
- Resolving www.mirrorservice.org (www.mirrorservice.org)... 212.219.56.184, 2001:630:341:12::184
- Connecting to www.mirrorservice.org (www.mirrorservice.org)|212.219.56.184|:443... connected.
- HTTP request sent, awaiting response... 200 OK
- Length: 89128960 (85M) [application/x-iso9660-image]
- Saving to: ‘Mageia-7.1-netinstall-nonfree-x86_64.iso’
- Mageia-7.1-netinstall-nonfree-x86_64.iso 100%[======================================================================================================================================================================>] 85.00M 8.78MB/s in 9.9s
- 2020-12-23 12:01:35 (8.58 MB/s) - ‘Mageia-7.1-netinstall-nonfree-x86_64.iso’ saved [89128960/89128960]
- # Download the mageia 64bit netinstall iso sha512 checksum file:
- $ wget https://www.mirrorservice.org/sites/mageia.org/pub/mageia/distrib/7.1/x86_64/install/images/Mageia-7.1-netinstall-nonfree-x86_64.iso.sha512
- --2020-12-23 12:01:42-- https://www.mirrorservice.org/sites/mageia.org/pub/mageia/distrib/7.1/x86_64/install/images/Mageia-7.1-netinstall-nonfree-x86_64.iso.sha512
- Resolving www.mirrorservice.org (www.mirrorservice.org)... 212.219.56.184, 2001:630:341:12::184
- Connecting to www.mirrorservice.org (www.mirrorservice.org)|212.219.56.184|:443... connected.
- HTTP request sent, awaiting response... 200 OK
- Length: 169 [application/x-iso9660-image]
- Saving to: ‘Mageia-7.1-netinstall-nonfree-x86_64.iso.sha512’
- #Compute sha512 checksum
- $ sha512sum Mageia-7.1-netinstall-nonfree-x86_64.iso
- 5acadb26370858f585335e61384ae956ca13a8c938956876b9f862ef846f3ddfc8eabdd61f06b2f186cdf67cb4873e17f32aed35b76be6a0c98b328e18e71445 Mageia-7.1-netinstall-nonfree-x86_64.iso
- #Display the downloaded sha512 checksum file:
- $ cat Mageia-7.1-netinstall-nonfree-x86_64.iso.sha512
- 5acadb26370858f585335e61384ae956ca13a8c938956876b9f862ef846f3ddfc8eabdd61f06b2f186cdf67cb4873e17f32aed35b76be6a0c98b328e18e71445 Mageia-7-netinstall-nonfree-x86_64.iso
- # list directory
- $ ls -l
- total 87048
- -rw-r--r-- 1 mpb mpb 89128960 Aug 23 18:22 Mageia-7.1-netinstall-nonfree-x86_64.iso
- -rw-r--r-- 1 mpb mpb 169 Aug 23 18:22 Mageia-7.1-netinstall-nonfree-x86_64.iso.sha512
- # Verify the downloaded ISO with the downloaded sha512 checksum file:
- $ sha512sum -c Mageia-7.1-netinstall-nonfree-x86_64.iso.sha512
- sha512sum: Mageia-7-netinstall-nonfree-x86_64.iso: No such file or directory
- Mageia-7-netinstall-nonfree-x86_64.iso: FAILED open or read
- sha512sum: WARNING: 1 listed file could not be r
- # 2nd attempt to verify specifying "./"
- $ sha512sum -c ./Mageia-7.1-netinstall-nonfree-x86_64.iso.sha512
- sha512sum: Mageia-7-netinstall-nonfree-x86_64.iso: No such file or directory
- Mageia-7-netinstall-nonfree-x86_64.iso: FAILED open or read
- sha512sum: WARNING: 1 listed file could not be readead
- # Question: the downloaded sha512 checksum file has the correct sha512 checksum for the ISO file (see "cat"s above) so why does the "sha512sum -c" fail?
- # Answer: because the downloaded ISO is for 7.1 but the sha512 checksum file references "Mageia-7-netinstall-nonfree-x86_64.iso". It should, instead be referencing: Mageia-7.1-netinstall-nonfree-x86_64.iso
- # Also tried same for md5sum with similar fail.
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