The beginning: Recently I have gotten back to some old projects, and I started to re-hydrate some OLD data files. One of these was curiously corrupt. After tracking down how (looks like it got truncated in one of the copies), I remember I still had a SUPER old copy on a backup from WAY back when (think 10 + years)
I look at the raw data from geli.. look at drive 1.. totally random.. I GUESS it could be in the middle of a data block.. look at drive 2.. a clear UFS header... OK.. so this clearly works. Look at a few more blocks... randomness. I SHOULD be seeing inode blocks, I know what they look like.. what gives?.. and which is the GEOM_STRIPE footer missing?
wtf... search... search... search, find:
Ok, implement the workaround (set environment variable.. .BUILD. Success. run...
IT BOOTS. yay..
interrupt storm detected on "vec2016:"; throttling interrupt source
after kernel takes over. search, find:
Try recompiling as suggested, try turning off DMA on FreeBSD... try booting virtio.. sparc64 doesn't support virtio. try booting scsi, qemu doesn't support SCSI on sparc64 (non virtio)
ah, yes.. where did we leave off... oh yes.. it boots, it works.. wow even attempting the emulation was a waste of time. running FreeBSD 11.. so even pretty recent (for SPARC)... check it out.. 1G RAM.. but no swap. and there's some data on the drive I should preserve before I nuke it. Start the tar.. go to bed.
Morning. power outage.. crap.. go to check, the tar finished, great.. system reset, sitting at fsck.. unexpected fileystem error.. crap. run fsck ... EVERYTHING is corrupt.. double crap.. vague memory that I knew this.. that for some reason fsck on 11 on sparc would flag everything as bad even though filesystem was consistent, but fsck on 10 would show it all as good... crap...
zero out drive for good measure. reboot.... garbage on the serial console.... power cycle. garbage. power cycle.. garbage... vague memories that this is why I pulled one of these machines out and gave up on the series for anything real...
Now I begin my trek through my spares....
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