CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

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BShT
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by BShT » 2019/11/12 12:57:20

... Make sure you select as destination the device corresponding to the USB key (/dev/sdz in the above example) and not a partition (such as /dev/sdz1)...

if you sha256sum /dev/sdb1 then you sha256sum the wrong place


dd if=file.iso of=/dev/sdb
sha256sum /dev/sdb

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TrevorH
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by TrevorH » 2019/11/12 13:38:18

Good catch
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nouvo09
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by nouvo09 » 2019/11/12 22:51:31

Yes . Already told 2 days ago. But whatever...
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George99
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Re: CentOS 8 1905 DVD ISO install fail

Post by George99 » 2019/11/13 02:16:50

tony_down_under wrote:
2019/11/12 08:54:26
This gives:

Code: Select all

[root@CV000142 cvadmin]# sha256sum /dev/sdb1
ea17ef71e0df3f6bf1d4bf1fc25bec1a76d1f211c115d39618fe688be34503e8  /dev/sdb1
[root@CV000142 cvadmin]# 
OK, so your sdb1 partition on the stick is fine.

What about your checksum for /dev/sdb2? (The Anaconda 10 MB FAT partition)

my sha256sum result (stick on /dev/sde here)

Code: Select all

sha256sum /dev/sde2
5bfdaa324a0115b384c31b2f3cc97d5a4cba26a8df2b493bf9ca2075fecad36d  /dev/sde2

tony_down_under
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by tony_down_under » 2019/11/13 03:28:35

wait I am confused...

If I sha256 the wrong thing, then why did it give a successful sha response which matches the downloaded ISO as well as the release notes for the ISO ?

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Re: CentOS 8 1905 DVD ISO install fail

Post by tony_down_under » 2019/11/13 04:38:32

George99 wrote:
2019/11/13 02:16:50

OK, so your sdb1 partition on the stick is fine.

What about your checksum for /dev/sdb2? (The Anaconda 10 MB FAT partition)

my sha256sum result (stick on /dev/sde here)

Code: Select all

sha256sum /dev/sde2
5bfdaa324a0115b384c31b2f3cc97d5a4cba26a8df2b493bf9ca2075fecad36d  /dev/sde2


I done it:

[root@CV000142 Desktop]# sha256sum /dev/sdb
9569b4aa9550ca9191a9772d2970969e6a696aa8b9bbca2ec94cc0fc60262682 /dev/sdb
[root@CV000142 Desktop]#
[root@CV000142 Desktop]#
[root@CV000142 Desktop]# sha256sum /dev/sdb2
5bfdaa324a0115b384c31b2f3cc97d5a4cba26a8df2b493bf9ca2075fecad36d /dev/sdb2
[root@CV000142 Desktop]#

We have the same SHA for the 2nd partition. The whole "sdb" was done as well and gives a different sha...

So, whats the process now to copy this ISO to usb? (I'll try and use the dd method from within RUFUS tool and post back, but that didnt work for centos7).

tony_down_under
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by tony_down_under » 2019/11/13 05:26:52

So after using RUFUS and "dd" mode, I get the same usb drive layout and sha's

[root@CV000142 Desktop]# sha256sum /dev/sdb && sha256sum /dev/sdb1 && sha256sum /dev/sdb2
9569b4aa9550ca9191a9772d2970969e6a696aa8b9bbca2ec94cc0fc60262682 /dev/sdb
ea17ef71e0df3f6bf1d4bf1fc25bec1a76d1f211c115d39618fe688be34503e8 /dev/sdb1
5bfdaa324a0115b384c31b2f3cc97d5a4cba26a8df2b493bf9ca2075fecad36d /dev/sdb2
[root@CV000142 Desktop]#

Will say again - CentOS 8 installation DVD iso is broken.

nouvo09
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by nouvo09 » 2019/11/13 07:36:50

Will say again - CentOS 8 installation DVD iso is broken.
Just look at the number og people who used it successfully. You can say that.

For the remaining you should not have any partition on your install media. If you do a fdisk -l on this media you should not see any partition. If you see one or more, you did something wrong. End of story.
Last edited by nouvo09 on 2019/11/13 11:25:03, edited 1 time in total.
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TrevorH
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by TrevorH » 2019/11/13 07:57:54

If I sha256 the wrong thing, then why did it give a successful sha response which matches the downloaded ISO as well as the release notes for the ISO ?
It sha256sums correctly because you also wrote it to /dev/sdb1 instead of /dev/sdb. You need to rewrite it to the correct thing /dev/sdb, not /dev/sdb1.
CentOS 6 will die in November 2020 - migrate sooner rather than later!
CentOS 5 has been EOL for nearly 3 years and should no longer be used for anything!
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George99
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Re: CentOS 8 1905 DVD ISO install fail - local repository error "incorrect checksum"

Post by George99 » 2019/11/13 11:46:10

TrevorH wrote:
2019/11/13 07:57:54
If I sha256 the wrong thing, then why did it give a successful sha response which matches the downloaded ISO as well as the release notes for the ISO ?
It sha256sums correctly because you also wrote it to /dev/sdb1 instead of /dev/sdb. You need to rewrite it to the correct thing /dev/sdb, not /dev/sdb1.
I don't think tony_down_under did the mistake you mention here as he confirms BOTH partitions exist on his usb stick with both correct checksums. He also used the Fedora Gnome(?) writer tool which is hard to use wrong this way.

The next thing I would try in this situation is to install Fedora the same way with this usb stick just to see if there is no hidden hardware failure.

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