sane questions - Page 1

sancho.s ReinstateMonicaCellio

Asked: 2020-06-01 22:38:03 +0800 CST

Epson scanner under Ubuntu 20.04

9

I mean to install scanner Epson 3170 Photo under Ubuntu 20.04. I post at the bottom the (usual) installation steps I took prior to checking if my PC finds the scanner.

Then, sane-find-scanner found the scanner

$ sudo sane-find-scanner

  # sane-find-scanner will now attempt to detect your scanner. If the
  # result is different from what you expected, first make sure your
  # scanner is powered up and properly connected to your computer.

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x06cb, product=0x009a) at libusb:001:005
found USB scanner (vendor=0x04b8 [EPSON], product=0x0116 [EPSON Scanner]) at libusb:001:009
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Not checking for parallel port scanners.

  # Most Scanners connected to the parallel port or other proprietary ports
  # can't be detected by this program.

Note: without sudo I got the error messages

could not open USB device 0x1d6b/0x0003 at 002:001: Access denied (insufficient permissions)
...

I mean to fix this later on, if I manage to overcome the following problems, unless this is part of the problem, which I guess it is not).

Then scanimage did not find the scanner

$ sudo scanimage -L

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

So I edited /etc/sane.d/dll.conf, to add epkowa (it wasn't listed), and comment epson2; epson was already commented. The page SANE: External Backends (Drivers) mentions that the 3170 is supported by epkowa ("requires DFSG non-free iscan-plugin-gt-9400 overseas version of the GT-9400UF").

So I tried installing iscan-plugin-gt-9400. It is only available as an rpm, not deb. Looking for related info, I found in [Solved] Successful Image Scan Installation for EPSON USB Scanner and Epson Perfection 3170 Photo Scanner (aka GT-9400) on Ubuntu Feisty that going through the conversion rpm -> deb and installing them (two packages, actually) is the only way to make the 3170 work. I am not certain this changed from the time of those posts, but I decided trying.

Following instructions above, and additionally:

Using Architecture: i386 amd64 instead of Architecture: i386, amd64 in debian/control files (otherwise error dpkg-gencontrol: error: 'i386,' is not a legal architecture in list 'i386, amd64' is thrown).

Executing export LD_LIBRARY_PATH="/usr/lib/x86_64-linux-gnu" since I was getting several errors

$ fakeroot debian/rules binary
...
dpkg-shlibdeps: error: cannot find library libjpeg.so.62 needed by debian/iscan/usr/lib/sane/libsane-epkowa.so.1.0.15 (ELF format: 'elf32-i386' abi: '0101000300000000'; RPATH: '')
...
dpkg-shlibdeps: error: cannot continue due to the errors listed above
Note: libraries are not searched in other binary packages that do not have any shlibs or symbols file.
To help dpkg-shlibdeps find private libraries, you might need to use -l.
dh_shlibdeps: error: dpkg-shlibdeps -Tdebian/iscan.substvars debian/iscan/usr/lib/sane/libsane-epkowa.so.1.0.15 debian/iscan/usr/lib/libesmod.so.1.1.0 debian/iscan/usr/bin/iscan returned exit code 2
dh_shlibdeps: error: Aborting due to earlier error
make: [debian/rules:27: binary-arch] Error 2 (ignored)
...

I managed to create iscan_2.10.0-2_amd64.deb (is it expected to get 2.10.0-2 instead of 2.10.0-1?) and iscan-plugin-gt-9400_1.0.0-2_amd64.deb.

Then I installed both packages with

$ sudo gdebi iscan_2.10.0-2_amd64.deb
$ sudo gdebi iscan-plugin-gt-9400_1.0.0-2_amd64.deb

(I overwrote here my previously created /etc/sane.d/epkowa.conf).

Then I plugged the scanner and turned it on. And the I got error

$ iscan
iscan: error while loading shared libraries: libjpeg.so.62: wrong ELF class: ELFCLASS64

How can I proceed to get the scanner to work? (I expect once this problem is solved, there will be a few hurdles until it is working)

What I did:

sudo apt-get install sane sane-utils libsane xsane
Download imagescan-bundle-ubuntu-19.10-3.62.0.x64.deb.tar.gz
Expand archive above and inside imagescan-bundle-ubuntu-19.10-3.62.0.x64.deb execute ./install.sh
Add myself to group lp: sudo adduser $USER lp
Reboot

Verify

$ groups
user1 adm lp cdrom sudo dip plugdev lpadmin lxd sambashare vboxusers

Plug the scanner in the USB and turn it on.

After Upgrade to Ubuntu 20.04: "Oh no! Something went wrong"

27

I upgraded to Ubuntu 20.04 today, choosing LightDM over gdm3 during the upgrade. During the upgrade I was asked if I wanted to keep or replace /etc/sane.d/dll.conf file. I decided for keeping it.

Now, without actively rebooting, the "Oh no! Something went wrong" screen appeared.

As I am still inexperienced with this kind of troubleshooting, I feel it wouldn't be safe to just try out answers from other threads that don't have exactly the same 'history'.

Solutions I read included Ctrl+Alt+F4 and trying to login and get more information from the command line (Oh no! Something has gone wrong on restart).

Is that safe to do? Ideally, I'd like to save my data that is stored on an encrypted harddrive before trying to fix errors. I'd like to avoid reinstalling the OS.

From reading other threads, I know this post may be criticised as not being precise enough or haven't tried enough, but really I cannot get more information from that white screen myself and don't want to risk ruining everything just to provide more information...

Thank you for your help!! :)

Edit: I have no idea if the problem is related to lvm2-activation-generator, as in Ubuntu 19.10 “Something has gone wrong” after update from 19.04 This and other solutions include booting from a live usb. Can I do this 'safely' by simply switching the laptop off at this stage? Do I have to do sth before?

indranil

Asked: 2019-01-07 23:42:15 +0800 CST

Install Canon LiDE 300 / 400 on Ubuntu 18.04

11

Unable to install Canon LiDE 300 on Ubuntu 18.04. How to solve it?

markling

Asked: 2018-03-07 10:45:53 +0800 CST

How to get a Brother DCP-350C scanner working?

10

Downloaded and installed the linux drivers from the Brother site here.

But the scanner still wasn't recognised.

You can see here, the drivers installed successfully:

$ dpkg  -l  |  grep  Brother
ii  brother-cups-wrapper-common                          1.0.0-10-0ubuntu6                                        amd64        Common files for Brother cups wrapper packages
ii  brother-udev-rule-type1                              1.0.0-1                                                  all          Brother udev rule type 1
ii  brscan-skey                                          0.2.4-1                                                  amd64        Brother Linux scanner S-KEY tool
ii  brscan2                                              0.2.5-1                                                  amd64        Brother Scanner Driver
ii  printer-driver-brlaser                               3-5~ubuntu1                                              amd64        printer driver for (some) Brother laser printers
ii  printer-driver-ptouch                                1.4-1                                                    amd64        printer driver Brother P-touch label printers

And here, you can see the installed driver thinks it is not 'registered':

$ brscan-skey -l

 DCP-350C          : brother2:bus3;dev1  : USB                  Not registered

When I open Simple Scan, it tells me I have a Brother scanner but that I need to install the drivers.

$ lsusb
Bus 003 Device 002: ID 04f9:01d0 Brother Industries, Ltd DCP-350C

$ sudo dpkg -l | grep Brother
ii  brother-cups-wrapper-common                          1.0.0-10-0ubuntu6                                        amd64        Common files for Brother cups wrapper packages
ii  brother-udev-rule-type1                              1.0.0-1                                                  all          Brother udev rule type 1
ii  brscan-skey                                          0.2.4-1                                                  amd64        Brother Linux scanner S-KEY tool
ii  brscan2                                              0.2.5-1                                                  amd64        Brother Scanner Driver
ii  printer-driver-brlaser                               3-5~ubuntu1                                              amd64        printer driver for (some) Brother laser printers
ii  printer-driver-ptouch                                1.4-1                                                    amd64        printer driver Brother P-touch label printers

Brother seems to have removed the linux o/s config instructions from its support pages - i.e. here and here, which had been the source of earlier solutions to this problem given here and here. The OS support information page in its FAQS and Troubleshooting section refer only to Windows and Macintosh. If you look elsewhere, you will find a page of linux information. It says "The Brother Linux scanner driver works only with a superuser by default". It points to a page where it says is given the means to make the scanner work for non-sudo users - perhaps, then, SimpleScan. That page contains fix downloads for numerous OSs, but nothing later than Ubuntu 13.10. Downloading and installing that file all the same does nothing to make the scanner work. If you grub around long enough you will find there is a linux troubleshooting FAQ after all - just not in the place where you would expect to find it. Getting this Brother scanner to work is like threading a needle in a wind tunnel. The first item on the linux FAQ is 'I'm using Ubuntu 16.10. I cannot scan from my Brother Machine'. That is close enough. It says 'Install libusb-0.1-4'. (The Brother driver had dependencies but it did not bother to check them). I do have this usb lib installed already anyway.

One of the earlier solutions (for a different Brother scanner - and the Brother support page with the solution has since disappeared), is quite helpful. It says to put a line in '/lib/udev/rules.d/40-libsane.rules', though in fact it should, on my 16.04 at least, be /lib/udev/rules.d/60-libsane.rules. And the line it asks you to add includes a reference to a product ID for a different Brother scanner. Looking on the sane website for a DCP-350C product ID (it wouldn't be DCP-350C -- that would be too easy -- the earlier solution is for a DCP-7030 and that has a product ID of "01ea")... so where were we?... looking on the sane website for a DCP-350C product ID. The sane page for Brother scanners has no entry for the DCP-350C. It says if your device isn't there it's not supported. It says the page was last updated on Oct 05 2003. That's fourteen and a half years ago. I believe the 350C came out a few years later, in 2007.

So the old solution for the DCP-7030 said to add edit the sane config thus:

sudo gedit /lib/udev/rules.d/40-libsane.rules

And to add this (in the right place):

# Brother scanners
ATTRS{idVendor}=="04f9", ATTRS{idProduct}=="01ea", ENV{libsane_matched}="yes"

Since my config appears to be in 60-libsane.rules and I don't have a product code, I edited the config thus:

sudo gedit /lib/udev/rules.d/60-libsane.rules

And added:

# Brother scanners
ATTRS{idVendor}=="04f9", ENV{libsane_matched}="yes"

And restarted the machine. This did not work.

I also moved some files the Brother intsall routine seems to put in the wrong place - at least, according to reports elsewhere such as here.

That involved copying Brother files from cp /usr/lib64/ to /usr/lib. (I had downloaded and installed the 64-bit version of the Brother driver).

The instructions to do this seemed out of date. And since Brother's website says its Brscan2 driver must be used with the DCP-350C, the filenames may differ. I copied mine thus:

sudo cp /usr/lib64/libbrscandec2.so /usr/lib
sudo cp /usr/lib64/libbrscandec2.so.1 /usr/lib
sudo cp /usr/lib64/libbrscandec2.so.1.0.0 /lib/lib
sudo cp /usr/lib64/sane/libsane-brother2.so /usr/lib/sane
sudo cp /usr/lib64/sane/libsane-brother2.so.1 /usr/lib/sane
sudo cp /usr/lib64/sane/libsane-brother2.so.1.0.7 /usr/lib/sane
sudo cp /usr/lib64/libbrcolm2.so /usr/lib
sudo cp /usr/lib64/libbrcolm2.so.1 /usr/lib
sudo cp /usr/lib64/libbrcolm2.so.1.0.1 /usr/lib

This blind alley was suggested by Brother itself. It's linux FAQ for the DCP-350C (if you can find it), says (for "Ubuntu 11.10 or higher"):

Copy the following files under /usr/lib64/ to /usr/lib/.

Another tip was to actually run the brscan-skey file that is offered as download with the driver, by simply entering brscan-skey at the command line.

At some point, something must have gone right because the Brother driver now tells me the device is recognised:

$ brscan-skey -l

 DCP-350C          : brother2:bus3;dev1  : USB                  Not registered

However, SimpleScan still says no devices are recognised.

Also, Brother says that brscan-skey allows scanning to be performed from the scanner's own console, using its 'scan-to-file' and 'scan-to-image' options. When I do so, the scanner says 'Connecting to PC', but nothing more happens.

I can get the 350C to scan when I call it from a trial version of a commercial linux scanning tool called VueScan. But the trial version puts water marks across the scanned image, making it useless to me. Moreover, the full version is expensive, and demands an annual subscription. And I only came across it while trying to find a way to get SimpleScan to work - or indeed, any open source scanning software.

The point is that VueScan just works. (But it does so in a way that leaves the scanner dysfunctional to other tools). It proves the scanner can be used with open source tools on Ubuntu. The question is how.

Janos

Asked: 2017-04-07 11:43:43 +0800 CST

Simple Scan cannot find scanner

9

Output of lsusb and sane-find-scanner below:

janos@AndrasXubuntu:~/Desktop$ sane-find-scanner

  # sane-find-scanner will now attempt to detect your scanner. If the
  # result is different from what you expected, first make sure your
  # scanner is powered up and properly connected to your computer.

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x03f0 [Hewlett-Packard], product=0x1205 [hp scanjet scanner]) at libusb:002:002
could not open USB device 0x1d6b/0x0001 at 002:001: Access denied (insufficient permissions)
could not open USB device 0x1d6b/0x0001 at 001:001: Access denied (insufficient permissions)
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Not checking for parallel port scanners.

  # Most Scanners connected to the parallel port or other proprietary ports
  # can't be detected by this program.

  # You may want to run this program as root to find all devices. Once you
  # found the scanner devices, be sure to adjust access permissions as
  # necessary.
janos@AndrasXubuntu:~/Desktop$ scanimage -L
[hp5590] hp5590_get_status: USB-in-USB: got non-zero device status (status 12)
[hp5590] hp5590_init_scanner: scanner reports non-zero status: Device busy

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
janos@AndrasXubuntu:~/Desktop$

Additional info:

(1) gscan2pdf and xsane has the same problem - cannot find device

(2) when I had xubuntu 12.04 scanner worked

(3) if I connect my laptop (same Ubuntu 16.04 as the desktop, but laptop is 64 bit, desktop is 32 bit) then simple scan on laptop works.

Sudo output, see comment below by janos

janos@AndrasXubuntu:~/Desktop$ sudo sane-find-scanner
[sudo] password for janos: 

  # sane-find-scanner will now attempt to detect your scanner. If the
  # result is different from what you expected, first make sure your
  # scanner is powered up and properly connected to your computer.

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x03f0 [Hewlett-Packard], product=0x1205 [hp scanjet scanner]) at libusb:002:002
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Not checking for parallel port scanners.

  # Most Scanners connected to the parallel port or other proprietary ports
  # can't be detected by this program.
janos@AndrasXubuntu:~/Desktop$ sudo scanimage -L
[hp5590] hp5590_get_status: USB-in-USB: got non-zero device status (status 12)
[hp5590] hp5590_init_scanner: scanner reports non-zero status: Device busy

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
janos@AndrasXubuntu:~/Desktop$

Output of lsusb (sorry, I meant to include that the first time when I saked the question)

janos@AndrasXubuntu:~/Desktop$ sudo lsusb
[sudo] password for janos: 
Bus 002 Device 002: ID 03f0:1205 Hewlett-Packard ScanJet 4500C/5550C
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
janos@AndrasXubuntu:~/Desktop$

Please note that if I plug the scanner to a different usb socket (e.g. a socket in Bus 001) lsusb will find it there but simple-scan still would not work.

Additional info: I can dual boot this machine to an old installation of Fedora-3. Scanner works there. However, scanimage -L will not find it, lsusb and sane-find-scanner does. See below output of terminal in Fedora-3 boot.

[apu@andraslinux ~]$ su -c "scanimage -L"
Password: 

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
[apu@andraslinux ~]$ /sbin/lsusb
Bus 002 Device 002: ID 03f0:1205 Hewlett-Packard 
Bus 002 Device 001: ID 1d6b:0001  
Bus 001 Device 001: ID 1d6b:0001  
[apu@andraslinux ~]$ sane-find-scanner 

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x03f0 [Hewlett-Packard], product=0x1205 [hp scanjet scanner]) at libusb:002:002
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

Could it be the libusb that enables FC3 to run scanner but Ubuntu 16.04 may not use libusb?

As I mentioned before scanner did work on 12.04 but stopped working after upgrading to 14.04 and now to 16.04

Additional info regarding libusb:

Terminal output is identical for both the 32bit desktop (scanner not working) and 64bit laptop (scanner working), and is here below:

janos@acerlinux:~/Desktop$ dpkg -l libusb
dpkg-query: no packages found matching libusb

In fact, I just checked that my 64bit laptop does not have libsane-dev, and checked again, scanner works if connected to leptop.

Additional info copied here from comments below:

/etc/sane.d/dll.conf was OK, hp5590 was not commented; then I modified /etc/sane.d/hp5400.conf by adding the proper usb line; scanner still not working even though scanimage -L detects it, but reports as busy. See here:

janos@AndrasXubuntu:~/Desktop$ sudo scanimage -L
[sudo] password for janos: 
[hp5590] hp5590_get_status: USB-in-USB: got non-zero device status (status 12)
[hp5590] hp5590_init_scanner: scanner reports non-zero status: Device busy

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
janos@AndrasXubuntu:~/Desktop$

One more thing, interestingly, the /etc/sane.d/hp5400.conf file is the same on both 64bit laptop and 32bit Fc3 desktop without having the edited addition of 5590 usb line and yet both work with the scanner except the 32bit Ubuntu desktop since upgrading from 12.04.

Consequently, I think the big question is "Why 32bit 16.04 Ubuntu desktop reports device busy?"

Additional info - revised output of libusb, this time with asterisk:

libusb on 32bit desktop

janos@AndrasXubuntu:~/Desktop$ dpkg -l libusb*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  libusb-0.1-4:i 2:0.1.12-28  i386         userspace USB programming library
ii  libusb-1.0-0:i 2:1.0.20-1   i386         userspace USB programming library
un  libusb-dev     <none>       <none>       (no description available)
un  libusbmuxd-too <none>       <none>       (no description available)
ii  libusbmuxd4:i3 1.0.10-2ubun i386         USB multiplexor daemon for iPhone
janos@AndrasXubuntu:~/Desktop$

libusb on 64bit laptop:

janos@acerlinux:~/Desktop$ dpkg -l libusb*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  libusb-0.1-4:a 2:0.1.12-28  amd64        userspace USB programming library
ii  libusb-1.0-0:a 2:1.0.20-1   amd64        userspace USB programming library
ii  libusb-1.0-0:i 2:1.0.20-1   i386         userspace USB programming library
un  libusb-dev     <none>       <none>       (no description available)
un  libusbmuxd-too <none>       <none>       (no description available)
ii  libusbmuxd4:am 1.0.10-2ubun amd64        USB multiplexor daemon for iPhone
janos@acerlinux:~/Desktop$

Additional info:

According to my notes for FC3 and man sane-usb usbfs has to be mounted in order for scanner to work. So in my FC3 I have a line in fstab containing none /proc/bus. Consequently I looked at the mounted filesystems on 32bit Ubuntu and 64bit Ubuntu. See below comparisons:

32 bit Ubuntu df -ha

janos@AndrasXubuntu:~/Desktop$ sudo df -ha
Filesystem      Size  Used Avail Use% Mounted on
sysfs              0     0     0    - /sys
proc               0     0     0    - /proc
udev            482M     0  482M   0% /dev
devpts             0     0     0    - /dev/pts
tmpfs           100M  5.1M   95M   6% /run
/dev/sda1       9.1G  4.0G  4.7G  47% /
securityfs         0     0     0    - /sys/kernel/security
tmpfs           500M  108K  500M   1% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           500M     0  500M   0% /sys/fs/cgroup
cgroup             0     0     0    - /sys/fs/cgroup/systemd
pstore             0     0     0    - /sys/fs/pstore
cgroup             0     0     0    - /sys/fs/cgroup/blkio
cgroup             0     0     0    - /sys/fs/cgroup/cpu,cpuacct
cgroup             0     0     0    - /sys/fs/cgroup/cpuset
cgroup             0     0     0    - /sys/fs/cgroup/net_cls,net_prio
cgroup             0     0     0    - /sys/fs/cgroup/freezer
cgroup             0     0     0    - /sys/fs/cgroup/memory
cgroup             0     0     0    - /sys/fs/cgroup/hugetlb
cgroup             0     0     0    - /sys/fs/cgroup/pids
cgroup             0     0     0    - /sys/fs/cgroup/perf_event
cgroup             0     0     0    - /sys/fs/cgroup/devices
systemd-1          0     0     0    - /proc/sys/fs/binfmt_misc
hugetlbfs          0     0     0    - /dev/hugepages
debugfs            0     0     0    - /sys/kernel/debug
mqueue             0     0     0    - /dev/mqueue
fusectl            0     0     0    - /sys/fs/fuse/connections
tmpfs           100M  4.0K  100M   1% /run/user/108
tmpfs           100M   36K  100M   1% /run/user/1000
gvfsd-fuse      0.0K  0.0K  0.0K    - /run/user/1000/gvfs
janos@AndrasXubuntu:~/Desktop$

Comparing files on 32bit desktop between FC3 (where scanner works) and Ubuntu

janos@AndrasXubuntu:/media/janos/_1/etc/sane.d$ diff hp5400.conf /etc/sane.d/hp5400.conf
14c14
< #/dev/usb/scanner0
---
> #/dev/usbscanner
janos@AndrasXubuntu:/media/janos/_1/etc/sane.d$

64bit Ubuntu df -ha

janos@acerlinux:~/Desktop$ sudo df -ha
[sudo] password for janos: 
Filesystem      Size  Used Avail Use% Mounted on
sysfs              0     0     0    - /sys
proc               0     0     0    - /proc
udev            1.4G     0  1.4G   0% /dev
devpts             0     0     0    - /dev/pts
tmpfs           276M  5.0M  271M   2% /run
/dev/sda5        17G  7.1G  8.5G  46% /
securityfs         0     0     0    - /sys/kernel/security
tmpfs           1.4G  260K  1.4G   1% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           1.4G     0  1.4G   0% /sys/fs/cgroup
cgroup             0     0     0    - /sys/fs/cgroup/systemd
pstore             0     0     0    - /sys/fs/pstore
cgroup             0     0     0    - /sys/fs/cgroup/hugetlb
cgroup             0     0     0    - /sys/fs/cgroup/cpuset
cgroup             0     0     0    - /sys/fs/cgroup/pids
cgroup             0     0     0    - /sys/fs/cgroup/freezer
cgroup             0     0     0    - /sys/fs/cgroup/memory
cgroup             0     0     0    - /sys/fs/cgroup/cpu,cpuacct
cgroup             0     0     0    - /sys/fs/cgroup/devices
cgroup             0     0     0    - /sys/fs/cgroup/blkio
cgroup             0     0     0    - /sys/fs/cgroup/net_cls,net_prio
cgroup             0     0     0    - /sys/fs/cgroup/perf_event
systemd-1          -     -     -    - /proc/sys/fs/binfmt_misc
hugetlbfs          0     0     0    - /dev/hugepages
mqueue             0     0     0    - /dev/mqueue
debugfs            0     0     0    - /sys/kernel/debug
fusectl            0     0     0    - /sys/fs/fuse/connections
/dev/sda7       3.0G  1.3G  1.7G  44% /mnt/DOS_E
/dev/sda8        22G  6.1G   15G  30% /mnt/save
binfmt_misc        0     0     0    - /proc/sys/fs/binfmt_misc
tmpfs           276M   44K  276M   1% /run/user/1000
gvfsd-fuse      0.0K  0.0K  0.0K    - /run/user/1000/gvfs
janos@acerlinux:~/Desktop$

FC3 df -ha

Filesystem            Size  Used Avail Use% Mounted on
/dev/hdb1              18G  7.0G   11G  41% /
none                     0     0     0   -  /proc
none                     0     0     0   -  /sys
none                     0     0     0   -  /dev/pts
none                  506M     0  506M   0% /dev/shm
none                     0     0     0   -  /proc/bus/usb
none                     0     0     0   -  /proc/sys/fs/binfmt_misc
none                     0     0     0   -  /var/named/chroot/proc

FC3 ls | grep hp5400.conf

hp5400.conf

FC3 ls | grep hp 5550.conf has no output.

Consequently, things noted: (a) neither FC3 nor 64bit Ubuntu laptop has hp5550.conf files yet scanner with both machines work, (b) while neither 32bit nor 64bit Ubuntu has usbfs mounted scanner works on 64bit Ubuntu but not on 32bit Ubuntu.

Additional info on trying proposed package:

janos@AndrasXubuntu:~/Desktop$ sudo dpkg -i libsane-dev_1.0.25+git20150528-1ubuntu2.16.04.1_i386.deb 
[sudo] password for janos: 
(Reading database ... 196333 files and directories currently installed.)
Preparing to unpack libsane-dev_1.0.25+git20150528-1ubuntu2.16.04.1_i386.deb ...
Unpacking libsane-dev (1.0.25+git20150528-1ubuntu2.16.04.1) over (1.0.25+git20150528-1ubuntu2) ...
dpkg: dependency problems prevent configuration of libsane-dev:
 libsane-dev depends on libsane (= 1.0.25+git20150528-1ubuntu2.16.04.1); however:
  Version of libsane:i386 on system is 1.0.25+git20150528-1ubuntu2.

dpkg: error processing package libsane-dev (--install):
 dependency problems - leaving unconfigured
Processing triggers for doc-base (0.10.7) ...
Processing 1 changed doc-base file...
Processing triggers for man-db (2.7.5-1) ...
Errors were encountered while processing:
 libsane-dev
janos@AndrasXubuntu:~/Desktop$ sudo dpkg -i libsane_1.0.25+git20150528-1ubuntu2.16.04.1_i386.deb 
[sudo] password for janos: 
(Reading database ... 196333 files and directories currently installed.)
Preparing to unpack libsane_1.0.25+git20150528-1ubuntu2.16.04.1_i386.deb ...
Unpacking libsane:i386 (1.0.25+git20150528-1ubuntu2.16.04.1) over (1.0.25+git20150528-1ubuntu2) ...
dpkg: dependency problems prevent configuration of libsane:i386:
 libsane:i386 depends on libsane-common (= 1.0.25+git20150528-1ubuntu2.16.04.1); however:
  Version of libsane-common on system is 1.0.25+git20150528-1ubuntu2.

dpkg: error processing package libsane:i386 (--install):
 dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.23-0ubuntu7) ...
Errors were encountered while processing:
 libsane:i386
janos@AndrasXubuntu:~/Desktop$

Epson scanner under Ubuntu 20.04

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