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Solved
ReadyNAS Ultra 4 hangs on booting
My Ultra 4 now hangs at the "Booting..." message when I try to start it up normally. Previously, disk 4 had failed, and I tried replacing it with one with matching specs (WD Red 3 TB). The new di...
homeric wrote:
Previously, disk 4 had failed, and I tried replacing it with one with matching specs (WD Red 3 TB).
The WD30EFAX? or the WD30EFRX? The EFAX is an SMR drive, so I'd recommend exchanging it for the EFRX.
homeric wrote:
Then the unit became unresponsive. I had requested a download of all the log files just before that. Not sure why that would be fatal, but it did seem to be cause and effect.
I've tried running the disk test from the boot menu. All three existing disks tested successfully. The unit shows up in RAIDar 6.5 with check marks next to the disks. I haven't tried pulling the disks and testing them separately.
Did you try booting it up w/o the new disk (skipping the file system check)?
If that still doesn't work, you could try entering these commands in tech support mode:
start_raid.sh mount /dev/md0 /sysroot mount --bind /proc /sysroot/proc mount --bind /dev /sysroot/dev mount --bind /dev/pts /sysroot/dev/pts mount --bind /sys /sysoot/sys chroot /sysroot /bin/bash vgscan vgchange -a y mount -o ro /dev/c/c /c
If all this works, the data volume should be mounted as read only.
StephenB wrote:Did you try booting it up w/o the new disk (skipping the file system check)?
If that still doesn't work, you could try entering these commands in tech support mode...
Thanks, I was currently starting with just the three existing disks.
When I start it with just the new disk, it seems to behave like a factory reset, giving you 10 minutes before wiping the disk. I haven't gone down that path yet.
I think I'll try the commands you suggest. The outside page I found had a similar set for a ReadyNAS 1100, but they don't get you to file access on the ReadyNAS 4.
I see I did get an WD30EFAX as a replacement, totally overlooked the SMR issue. The old drives are WD30EFRX, guess I was paying attention back then.
homeric wrote:
I see I did get an WD30EFAX as a replacement, totally overlooked the SMR issue. The old drives are WD30EFRX, guess I was paying attention back then.
WD likely wasn't selling SMR back then. They rebranded the WD Red line, so all those disks are SMR. The WD Red Plus and Red Pro lines are CMR.
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