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Forum Discussion
AlexSem
Mar 17, 2026Aspirant
Help needed: ReadyNAS NVX (RNDX4000) Restore to RAIDiator 4.2 - Empty /boot_flash
Hi everyone, I’m reaching out because I made a major mistake while attempting to upgrade my ReadyNAS NVX (RNDX4000) from v4.2 to OS6. The upgrade failed, and now I'm trying to restore the unit ba...
- Mar 21, 2026
AlexSem wrote:
Do you see any possible options for recovering the NAS?Check your PMs (click on the envelope icon in the upper right of the forum page).
AlexSem
Mar 19, 2026Aspirant
2. USB recovery with OS4.2.31 #1
sd 5:0:0:0: [sda] Assuming drive cache: write through
sd 6:0:0:0: [sdb] Assuming drive cache: write through
Fata1: COMRESET failed (errno=-16)
Searching for external boot flash device...sdb
Searching for internal boot flash device...sda
cp: omitting directory '/boot_flash/vpd'
Formatting USB boot flash device...
heads: 4 sectors: 62 cylinders: 1011 start 0
done
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