I'll quote a part:
2024-03-03T02:58:02Z ERROR: ReadBlockFromDisk: Deserialize or I/O error - ReadCompactSize(): size too large: iostream error at FlatFilePos(nFile=2020, nPos=49361069)
2024-03-03T02:58:02Z ERROR: ReadBlockFromDisk: Deserialize or I/O error - ReadCompactSize(): size too large: iostream error at FlatFilePos(nFile=2020, nPos=6576281)
2024-03-03T02:58:02Z ERROR: ReadBlockFromDisk: Deserialize or I/O error - ReadCompactSize(): size too large: iostream error at FlatFilePos(nFile=2020, nPos=37831041)
2024-03-03T02:58:02Z ERROR: ReadBlockFromDisk: Deserialize or I/O error - ReadCompactSize(): size too large: iostream error at FlatFilePos(nFile=2020, nPos=38842756)
2024-03-03T02:58:02Z ERROR: ReadBlockFromDisk: Deserialize or I/O error - ReadCompactSize(): size too large: iostream error at FlatFilePos(nFile=2020, nPos=118374383)
2024-03-03T02:58:02Z ERROR: ReadBlockFromDisk: Deserialize or I/O error - ReadCompactSize(): size too large: iostream error at FlatFilePos(nFile=2020, nPos=5309736)
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That doesn't look like a normal debug.log.
To me it looks like your blockchain data files are corrupted from a certain point on.
Agreed.
The PC is a Dell with an SSD 240GB and HDD 4TB. Both partitions DataD and DataE are on the HDD, 2TB each.
Bitcoin is on DataE with the whole blockchain.
Last week, after a request from Fedora 38, I proceeded with a system update.
The Fedora update went well and rebooted my machine. Now Fedora 39.
Right after the reboot the whole 4TB drive, both partition were invisible.
It sounds like you somehow messed up your file system, and/or your drive is failing.
This is what I would do: backup all data from the 4 TB drive you want to keep. Anyone should always have backups ready, but I'll mention it anyway. Backup your wallet.dat files (do it again, even though you should have several backups). And just in case, make another backup on another (brand) USB stick.
Test the disk. Start with the SMART status, and run a disk test. If you're more familiar with Windows, you could format it into a Windows format and test the drive there. If it passes all tests, restart your blockchain download. Put
chainstate on the SSD and use as much
dbcache as you can spare. Depending on specs it can take less than a day up to many weeks.
If the disk fails any tests, replace it.