[Rack] something wrong with minotaur - read-only file system

Jonathan Lassoff jof at thejof.com
Sat Feb 2 00:33:00 UTC 2013

On Fri, Feb 1, 2013 at 4:27 PM, Jake <jake at spaz.org> wrote:

> i can't even run fdisk to see the physical size of the drive.
> root at minotaur:/home/jake# fdisk /dev/sda
> bash: /sbin/fdisk: Input/output error

It's sdb that's failing.

> but assuming we can find a nice hard drive to replace the one in there,
> can we just copy the failing drive?

If we're very lucky, but I would guess not.

I think minotaur is a good box for low-CPU but critical tasks like door
> opening and RFID alerting.

I think so too, and I'm glad it exists, but it's also become a bit of a
dumping ground for new projects that people want to talk to over the
I'd much rather start offloading what we can onto raspberry pis, or
ethershield-ed arduinos.

Minotaur being down also breaks in-space DNS, methinks.

Maybe I should hack up a backup resolver on pony and re-point DHCP? That's
not the most reliable host either these days, with the UPS.


> On Fri, 1 Feb 2013, Jonathan Lassoff wrote:
>  And... Minotaur's disk dies.
>> I think we're way overloading this box that was intended as an out-of-band
>> access host. :p
>> --j
>> On Fri, Feb 1, 2013 at 4:18 PM, Jake <jake at spaz.org> wrote:
>>       *** System restart required ***
>>       Last login: Thu Jan 31 22:56:43 2013 from awesome.local
>>       jake at minotaur:~$ touch sdfkj
>>       touch: cannot touch `sdfkj': Read-only file system
>>       jake at minotaur:~$ mount
>>       /dev/mapper/minotaur-root on / type ext4 (rw,errors=remount-ro)
>>       proc on /proc type proc (rw,noexec,nosuid,nodev)
>>       sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
>>       none on /sys/fs/fuse/connections type fusectl (rw)
>>       none on /sys/kernel/debug type debugfs (rw)
>>       none on /sys/kernel/security type securityfs (rw)
>>       udev on /dev type devtmpfs (rw,mode=0755)
>>       devpts on /dev/pts type devpts
>>       (rw,noexec,nosuid,gid=5,mode=**0620)
>>       tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,**mode=0755)
>>       none on /run/lock type tmpfs
>>       (rw,noexec,nosuid,nodev,size=**5242880)
>>       none on /run/shm type tmpfs (rw,nosuid,nodev)
>>       /dev/sdb1 on /boot type ext2 (rw)
>>       /dev/mapper/minotaur-home on /home type ext4 (rw)
>>       rpc_pipefs on /run/rpc_pipefs type rpc_pipefs (rw)
>>       nfsd on /proc/fs/nfsd type nfsd (rw)
>>       mount: warning: /etc/mtab is not writable (e.g. read-only
>>       filesystem).
>>              It's possible that information reported by mount(8) is
>>       not
>>              up to date. For actual information about system mount
>>       points
>>              check the /proc/mounts file.
>>       jake at minotaur:~$
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