file copy problem: filename too long

Nio Wiklund nio.wiklund at gmail.com
Sun Sep 27 14:24:51 UTC 2015


Hi Tom,

Not quite like that.

This drive that you show with lsblk has 'only' encrypted home with
cryptswap.

The other system, that you showed earlier, the netbook(?) has a mapped
root partition. lsblk would show more details, and I think that system
has .encrypted disk'.

/dev/mapper/lubuntu--vg-root ext4  152432756 28978632 115687904  21% /

I don't know all the details of the 'encrypted home' system, if there
are limits to the file names (size, use of special characters etc).

Best regards
Nio

Den 2015-09-26 kl. 17:10, skrev Tom Cloyd:
> 
> Nio,
> 
> Thanks. I'm learning a lot with this inquiry. Here's the output I get
> with the command you suggest:
> 
> tomc at LDT:/$ sudo lsblk -fm
> 
> [sudo] password for tomc: 
> 
> NAME           FSTYPE LABEL UUID                                 MOUNTPOINT       NAME             SIZE OWNER GROUP MODE
> 
> sda                                                                               sda            298.1G root  disk  brw-rw----
> 
> ├─sda1         ext4         35b917be-57cf-4a8b-8064-5081d394b269 /                ├─sda1         295.1G root  disk  brw-rw----
> 
> └─sda5         swap         4a980b3c-1e88-473f-99ef-7a1542d93503                  └─sda5             3G root  disk  brw-rw----
> 
>   └─cryptswap1 swap         635c8c41-645c-4819-b4b4-86bff68091c1 [SWAP]             └─cryptswap1     3G root  disk  brw-rw----
> 
> sdb                                                                               sdb            149.1G root  disk  brw-rw----
> 
> └─sdb1         ext4   data  65e8d99c-e515-49b0-885b-dba9249560af /media/tomc/data └─sdb1         149.1G root  disk  brw-rw----
> 
> sr0                                                                               sr0             1024M root  cdrom brw-rw----
> 
> tomc at LDT:/$
> 
> 
> If I read this right, it's telling me that sda (my desktop hard drive)
> is an encrypted drive, rather than containing merely an encrypted /home.
> Please correct me if I'm wrong.
> 
> Beyond that, I don't know how to use this to make progress on my file
> copy problem. I have some other responses to my query, and I'm going to
> check them out now.
> 
> Thanks again,
> 
> Tom
> 
> On 09/26/2015 12:51 AM, Nio Wiklund wrote:
>> Hi Tom,
>>
>> ecryptfs indicates 'encrypted home' and
>>
>> /dev/mapper/lubuntu--vg-root indicates LVM partitions which are used
>> with 'encrypted disk'.
>>
>> You can get more details about the partitions and file systems from the
>> following command (make the terminal window wide enough for the long
>> lines in the output).
>>
>> sudo lsblk -fm
>>
>> Good luck
>> Nio
>>
>> Den 2015-09-26 kl. 09:33, skrev Tom Cloyd:
>>> Aere,
>>>
>>> First, that's a question I've never encountered before, and I really
>>> don't know what you're asking. But Google seems to, and one answer I got/dev/mapper/lubuntu--vg-root ext4     152432756 28978632 115687904  21% /
>>> was to issue a *df -T* command to get filesystem information.
>>>
>>> So, here's the response I get on my *desk top*, with the USB HD
>>> (/media/tomc/data) mounted:
>>>
>>> tomc at LDT:/$ df -T
>>> Filesystem          Type     1K-blocks      Used Available Use% Mounted on
>>> udev                devtmpfs   1530592         0   1530592   0% /dev
>>> tmpfs               tmpfs       309092      5256    303836   2% /run
>>> /dev/sda1           ext4     304448824 165895764 123064908  58% /
>>> tmpfs               tmpfs      1545448       740   1544708   1% /dev/shm
>>> tmpfs               tmpfs         5120         4      5116   1% /run/lock
>>> tmpfs               tmpfs      1545448         0   1545448   0%
>>> /sys/fs/cgroup
>>> tmpfs               tmpfs       309092        12    309080   1%
>>> /run/user/1000
>>> /home/tomc/.Private ecryptfs 304448824 165895764 123064908  58% /home/tomc
>>> /dev/sdb1           ext4     153704484  55642056  90231596  39%
>>> /media/tomc/data
>>> tomc at LDT:/$
>>>
>>> And on my *netbook* (USB HD is not mounted):
>>>
>>> tomc at LT:~$ df -T
>>> Filesystem                   Type     1K-blocks     Used Available Use%
>>> Mounted on
>>> udev                         devtmpfs    497380        0    497380   0% /dev
>>> tmpfs                        tmpfs       101656    13328     88328  14% /run
>>> /dev/mapper/lubuntu--vg-root ext4     152432756 28978632 115687904  21% /
>>> tmpfs                        tmpfs       508276       76    508200   1%
>>> /dev/shm
>>> tmpfs                        tmpfs         5120        4      5116   1%
>>> /run/lock
>>> tmpfs                        tmpfs       508276        0    508276   0%
>>> /sys/fs/cgroup
>>> /dev/sda1                    ext2        240972    72053    156478  32%
>>> /boot
>>> cgmfs                        tmpfs          100        0       100   0%
>>> /run/cgmanager/fs
>>> tmpfs                        tmpfs       101656       12    101644   1%
>>> /run/user/1000
>>> tomc at LT:~$
>>>
>>> Something I might mention which could have bearing. For professional
>>> reasons, I need to have at least my main personal account directory
>>> encrypted.  So, I took the encryption option offered when installing
>>> Lubuntu (I had been running Kubuntu). But I didn't get the same response
>>> for both desktop and netbook. (Recall that with the netbook I am NOT
>>> having this filelength copy issue).
>>>
>>> I neglected to take notes, and cannot reliably recall, but on one of the
>>> installs I WAS able to encrypt the whole disk. On the other install, the
>>> installer refused to do that and would only let me encrypt /home. Can
>>> you tell, looking at the above, which machine has only /home encrypted?
>>>
>>> I hope this is the information you need. Thanks for your help. Much
>>> appreciated.
>>>
>>> Tom
>>>
>>> On 09/25/2015 09:17 PM, Aere Greenway wrote:
>>>> Tom:
>>>>
>>>> What type of file-system was originally copied to the USB hard-drive,
>>>> and what type of file-system are you copying it to? 
>>>>
>>>> - Aere
>>>>
>>>>
>>>> On 09/25/2015 04:04 PM, Tom Cloyd wrote:
>>>>> I'm baffled by a problem which I'm having on my Lubuntu install
>>>>> [15.04] on my Dell Inspiron which is NOT occurring on my HP Mini 110
>>>>> netbook. The OS installation on the HP netbook is identical to that
>>>>> on the Dell so far as I know.
>>>>>
>>>>> In trying to copy several large directories from a backup USB
>>>>> harddrive, I get a refusal to copy on the Dell due to a number
>>>>> (several hundred) of filenames' being too long.
>>>>>
>>>>> I NEED to complete this directory copy. Can anyone advise me as to
>>>>> how to resolve this problem?
>>>>>
>>>>> Thanks!
>>>>>
>>>>> Tom
>>>>>
>>>>>
>>>>> -- 
>>>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>>
>>>>> Human beings are not born once and for all on the day their mothers
>>>>> give birth to them,
>>>>> but...life obliges them over and over again to give birth to themselves.
>>>>>
>>>>> ~ Gabriel García Márquez
>>>>>
>>>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>> Tom Cloyd, MS MA LMHC (WA)
>>>>> Psychotherapist (psychological trauma, dissociative disorders)
>>>>> Spokane, Washington, U.S.A: (435) 272-3332
>>>>> << tc at tomcloyd.com <mailto:tc at tomcloyd.com> <mailto:tc at tomcloyd.com <mailto:tc at tomcloyd.com>> >> (email)
>>>>> << TomCloyd.com >> (website)
>>>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>>
>>>>>
>>>> -- 
>>>> Sincerely,
>>>> Aere
>>> -- 
> -- 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Human beings are not born once and for all on the day their mothers give
> birth to them,
> but...life obliges them over and over again to give birth to themselves.
> 
> ~ Gabriel García Márquez
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Tom Cloyd, MS MA LMHC (WA)
> Psychotherapist (psychological trauma, dissociative disorders)
> Spokane, Washington, U.S.A: (435) 272-3332
> << tc at tomcloyd.com <mailto:tc at tomcloyd.com> >> (email)
> << TomCloyd.com >> (website)
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~




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