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

[Jake]

i can't even tell what drive is what on that thing.  I thought there was a 
laptop drive mounted in an external enclosure, is that the only drive?

why is it sdb?  shouldn't it be sda if it's the boot drive?

are SSD's more reliable than regular hard drives?  What about a nice 3.5" 
desktop drive?

On Fri, 1 Feb 2013, Ben Kochie wrote:

> I have a new server setup we can use. I may also have an extra ssd to
> replace SDB.
> 
> Jonathan Lassoff <jof at thejof.com> wrote:
>       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
> network.
> 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.
> 
> --j 
> 
>
>       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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> 
> 
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