LOCALDEV_DENY_INTERNAL_DISKS disabled WD Elements USB harddisk

[Jan Middelkoop]

It took some digging through the source, but I've figured out why my WD Elements 500 GB USB harddisk doesn't get mounted to the remote server desktop when it is attached to a thin client.

LOCALDEV_DENY_INTERNAL_DISKS is set to True by default. Somehow ltsfs_entry thinks my WD Elements 500 GB USB harddisk is an internal disk and therefor doesn't mount it. Setting LOCALDEV_DENY_INTERNAL_DISKS to False in lts.conf remedies this problem.

Please advise on what further information I could provide and how to obtain that information.

[Alkis Georgopoulos (alkisg)]

Jan, is this still reproducible?
If you don't have the disk any more, just let this bug report expire.

[Launchpad Janitor (janitor)]

[Expired for LTSP because there has been no activity for 60 days.]

[vagk (vagk-p)]

I don't know if i need to open a new bug, since this is expired, however I came across the same bug with the same external hard disk, a WD 500GB.

In my setup all usb disks were detected except this one. In my lts.conf file I have LOCALDEV_DENY_INTERNAL_DISKS=true

In the ltsp client I noticed in syslog that ltspfs_entry bash script failed with exit code 1 for this disk, so I run it manually as with -x to see what was the problem.

I have attached the output of bash -x ltspfs_entry add /dev/sdb1

The disk is detected as ata just like if it was an internal. I compared with an internal disk and saw one variable that could make a difference, $DEVPATH that had usb in its path.

I made the next patch. I don't know if it is the proper one but it worked well for me, mounting the external WD disk, while not mounting any internals.

--- ltspfs_entry.orig 2020-04-30 08:08:03.971810533 +0300
+++ ltspfs_entry.new 2020-04-30 08:13:58.267080415 +0300
@@ -158,6 +158,11 @@
             count=0
             IFS=+
             for deny_rule in $deny_ruleset; do
+ if ! boolean_is_true "$LOCALDEV_DENY_USB" && [ "$(echo $DEVPATH|grep usb)" ]; then
+ count=0
+ break
+ fi
                 var=$(echo $deny_rule|cut -d: -f1)
                 val=$(echo $deny_rule|cut -d: -f2)
                 eval test="\${$var}" 2>/dev/null