That was a challenge!
Wake up to find my server down, so I reboot it. Boots with errors about mount. Able to login as root but filesystem is read-only. Can't go read/write, mount command is borked. Can’t fix mount command because it's read-only. Oh, and no internet because it's DNS server & router.
Downloaded Debian installer over phone as hotspot, booted rescue mode, it was able to assemble my RAID array and drop me into a shell where I was able to re-install libmount1.
#linux #sysadmin
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