On Sat, 23 Feb 2019 02:23:43 -0800
Tomas K <[email protected]> dijo:

>Here is my advice:
>  1. go outside, away from your computer - panic

The contents of mount are listed below. I read through it and
didn't see anything listed twice. The last item is the SD card. 

Normally Data (/dev/sda1), Movies (external USB) and Synology
(NFS) appear in the GUI file managers under /media/jjj. But now none
of the three GUI file managers that are installed (Thunar, PCFileMan and
Gnome) list them, and programs cannot access them.

Now that I'm awake I remember the command I need is fsck, except I
recall that I need the new one (e2fsck? DuckDuckGo will help). 

Before I do it I want to make a full backup of /dev/sdb, which is a
512GB mSATA drive holding / and ~/. It is five and a half years
old.Normally Since one of my external drives can be accessed, the best
(only) way to do backups is via my Blueray drive. Fortunately I have a
spindle of 25GB discs here.


jjj@Devil-Bonobo:/media/jjj$ mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs
        (rw,nosuid,relatime,size=8169208k,nr_inodes=2042302,mode=755)
devpts on /dev/pts type devpts
        (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs
        (rw,nosuid,noexec,relatime,size=1638880k,mode=755)
/dev/sdb1 on / type ext4 (rw,relatime,data=ordered)
securityfs on /sys/kernel/security type securityfs
        (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs
        (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (rw,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup
        
(rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-
        agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup
        (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/pids type cgroup
        
(rw,nosuid,nodev,noexec,relatime,pids,release_agent=/run/cgmanager/agents/cgm-release-
        agent.pids)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup
        (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/hugetlb type cgroup
        
(rw,nosuid,nodev,noexec,relatime,hugetlb,release_agent=/run/cgmanager/agents/cgm-release-
        agent.hugetlb)
cgroup on /sys/fs/cgroup/cpuset type cgroup
        (rw,nosuid,nodev,noexec,relatime,cpuset,clone_children)
cgroup on /sys/fs/cgroup/memory type cgroup
        (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/freezer type cgroup
        (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup
        (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/perf_event type cgroup
        
(rw,nosuid,nodev,noexec,relatime,perf_event,release_agent=/run/cgmanager/agents/cgm-release-agent.perf_event)
cgroup on /sys/fs/cgroup/devices type cgroup
        (rw,nosuid,nodev,noexec,relatime,devices)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs
        (rw,relatime,fd=22,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
sunrpc on /run/rpc_pipefs type rpc_pipefs (rw,relatime)
nfsd on /proc/fs/nfsd type nfsd (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
/var/lib/snapd/snaps/core_6350.snap on /snap/core/6350 type squashfs
        (ro,nodev,relatime)
/var/lib/snapd/snaps/core_6259.snap on /snap/core/6259 type squashfs
        (ro,nodev,relatime)
/var/lib/snapd/snaps/core_6405.snap on /snap/core/6405 type squashfs
        (ro,nodev,relatime)
/dev/sda1 on /media/jjj/Data type ext4
        (rw,nosuid,nodev,relatime,data=ordered)
/dev/sdb2 on /home type ext4 (rw,relatime,stripe=32745,data=ordered)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
cgmfs on /run/cgmanager/fs type tmpfs (rw,relatime,size=100k,mode=755)
/dev/sdc1 on /media/jjj/Movies type ext4
        (rw,nosuid,nodev,relatime,stripe=8191,data=ordered)
192.168.1.115:/volume1/Synology on /media/jjj/Synology type nfs
        (rw,nosuid,nodev,noexec,relatime,vers=3,rsize=131072,
        wsize=131072,namlen=255,hard,proto=tcp,timeo=600,
        retrans=2,sec=sys,mountaddr=192.168.1.115,mountvers=3,
        mountport=892,mountproto=udp,local_lock=none,addr=192.168.1.115,user)
tmpfs on /run/user/1000 type tmpfs
        (rw,nosuid,nodev,relatime,size=1638880k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse
        (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
mtpfs on /mnt type fuse.mtpfs
        (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
SleepyHead-test-16.04-x86_64.AppImage on /tmp/.mount_SleepyVTassu type
        fuse.SleepyHead-test-16.04-x86_64.AppImage
        (ro,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/sdd1 on /media/jjj type vfat
        (ro,relatime,fmask=0022,dmask=0022,codepage=437,
        iocharset=iso8859-1,shortname=mixed,errors=remount-ro)


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