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 Forum index » House Training » Beginners Help ( Start Here)
lost sdb1
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Béèm


Joined: 21 Nov 2006
Posts: 11782
Location: Brussels IBM Thinkpad R40, 256MB, 20GB, WiFi ipw2100. Frugal Lin'N'Win

PostPosted: Mon 15 Nov 2010, 15:57    Post subject:  

drspastic wrote:
i suspect there may be a problem with recursive mounting of filesystems within filesystems within filesystems. if a /dev ismounted within a filesystem already containing a /dev then what happens?+-
I don't understand that question.
Puppy layers are kinda 'glued' together in a way that you don't have double things.
Read following material.
This is how puppy works.

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Sylvander

Joined: 15 Dec 2008
Posts: 3428
Location: West Lothian, Scotland, UK

PostPosted: Mon 15 Nov 2010, 18:58    Post subject:  

Further info:

1. Booted Boxpup-431 without the Flash Drive connected.
The Puppy automatically used the pupsave on the internal HDD.

2. Naturally, none of the [not connected] Flash Drive partitions were displayed.

3. Powered on my newer USB-connected SATA HDD, and its ext3 partition WAS seen.
Powered it off.

4. Powered on my older USB-connected PATA HDD, and its FAT32 partition WAS seen.
Powered it off.
-------------------------------------------------------------------------------------

5. Now connected the 8GB Flash Drive, and all 6 ext3 partitions [sdc1,2,3,5,6,7] were displayed.

6. Powered on my newer USB-connected SATA HDD, and its partition was NOT seen.
Powered it off.

7. Powered on my older USB-connected PATA HDD, and its FAT32 partition was NOT seen.
Powered it off.

-------------------------------------------------------------------------------------

8. Disconnected the 8GB Flash Drive, and all 6 partitions disappeared from screen as expected.

9. Powered on my newer USB-connected SATA HDD, and its ext3 partition WAS seen.
Powered it off.

10. Powered on my older USB-connected PATA HDD, and its FAT32 partition WAS seen.
Powered it off.
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Béèm


Joined: 21 Nov 2006
Posts: 11782
Location: Brussels IBM Thinkpad R40, 256MB, 20GB, WiFi ipw2100. Frugal Lin'N'Win

PostPosted: Mon 15 Nov 2010, 19:02    Post subject:  

Sylvander, do you have this also with a vanilla puppy 431?
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Sylvander

Joined: 15 Dec 2008
Posts: 3428
Location: West Lothian, Scotland, UK

PostPosted: Mon 15 Nov 2010, 19:31    Post subject:  

1. Don't have a straight/plain [does plain = "Vanilla"?] Puppy-431 in use.

2. Do have:
(a) Dpup-010
(b) Teenpup mini 2010 beta
(c) Luci-237-SCSI
(d) Lupu-511
(e) Boxpup-431
(f) Lighthouse-5.00-F (build 500)

3. Would you like me to check if this happens with any/all of the others?
Only the following presently have a pupsave on the internal HDD:
2-c,d,e.
If necessary I can copy the pupsaves of the others to the internal HDD.
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Béèm


Joined: 21 Nov 2006
Posts: 11782
Location: Brussels IBM Thinkpad R40, 256MB, 20GB, WiFi ipw2100. Frugal Lin'N'Win

PostPosted: Mon 15 Nov 2010, 19:49    Post subject:  

Vanilla means unmodified.
In puppy terms, not a derivative, but the one brought out by Barry.
It is strange that boxpup reacts as it does.
So the closest vanilla's you have are lucid and lupu
If you find it interesting, you may do the test, but I doubt it will help the OP.

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Sylvander

Joined: 15 Dec 2008
Posts: 3428
Location: West Lothian, Scotland, UK

PostPosted: Tue 16 Nov 2010, 05:42    Post subject:  

1. Lupu-511 behaves exactly the same as described above [regarding Boxpup-431].

2. Made a further discovery as follows:
(a) If I switch on a USB-connected external HDD [when no USB Flash Drive is connected]...
The HDD partition [sdc1] appears on the desktop.

(b) If I then plug in the USB Flash Drive...
With the exception of the 1st partition [sdd1]...
All other Flash Drive partitions [sdd2,3,5,6,7] appear on the desktop.

3. The above is surprising, because things don't work the other way around.
i.e. If the Flash Drive is connected first, [the Flash Drive partitions show, but] then the HDD partition doesn't show...
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Béèm


Joined: 21 Nov 2006
Posts: 11782
Location: Brussels IBM Thinkpad R40, 256MB, 20GB, WiFi ipw2100. Frugal Lin'N'Win

PostPosted: Tue 16 Nov 2010, 06:35    Post subject:  

I had this issue also of a first partition not showing.
It was sdb1 in my case, and I think, with the drive unplugged, I deleted /mnt/sdb1. After that the partition came on the desktop when plugged in.
Some weirdness in the event manager I suppose.

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shinobar


Joined: 28 May 2009
Posts: 2618
Location: Japan

PostPosted: Tue 16 Nov 2010, 06:54    Post subject: Re: lost sdb1
Subject description: after mounting other usb storage, card reader not seen
 

drspastic wrote:
sd card sdb1 is not seen.
it is seen if i boot without loading save file.

Try next step:
  1. Remove the sd card.
  2. Delete /dev/sdb and /dev/sdb1 using ROX-Filer.
  3. Reboot.

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Béèm


Joined: 21 Nov 2006
Posts: 11782
Location: Brussels IBM Thinkpad R40, 256MB, 20GB, WiFi ipw2100. Frugal Lin'N'Win

PostPosted: Tue 16 Nov 2010, 07:25    Post subject: Re: lost sdb1
Subject description: after mounting other usb storage, card reader not seen
 

shinobar wrote:
drspastic wrote:
sd card sdb1 is not seen.
it is seen if i boot without loading save file.

Try next step:
  1. Remove the sd card.
  2. Delete /dev/sdb and /dev/sdb1 using ROX-Filer.
  3. Reboot.
hmmmm, that comforts me having done the right thing, as posted 20 minutes before your post. Wink
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RetroTechGuy


Joined: 15 Dec 2009
Posts: 2668
Location: USA

PostPosted: Tue 16 Nov 2010, 12:15    Post subject: Re: lost sdb1
Subject description: after mounting other usb storage, card reader not seen
 

Béèm wrote:
shinobar wrote:
drspastic wrote:
sd card sdb1 is not seen.
it is seen if i boot without loading save file.

Try next step:
  1. Remove the sd card.
  2. Delete /dev/sdb and /dev/sdb1 using ROX-Filer.
  3. Reboot.
hmmmm, that comforts me having done the right thing, as posted 20 minutes before your post. Wink


I've occasionally had success getting Puppy to identify a new device by repeatedly clicking the refresh key...but not always.

I've also had cases where a device was "very determined" not to mount, until I did a manual mount from the command line (after Puppy mounter failed to mount the device).

To do this (assuming your device is sdb1 -- which you may not know, unless you check logs -- however, Puppy mounter usually shows you the device name and file system type):

Code:
mount /dev/sdb1 /mnt/sdb1


You generally won't need to use a "-t" ("system type") to get a mount, but some systems can be stubborn (and NTFS will typically not default mount as Read-Write -- but at least you can read the files).

IIRC, for RW on NTFS, use "mount -t ntfs-3g ..."

BTW, if you don't need RW and need to force a mount, let it mount read-only -- it's possible that Puppy thinks that your NTFS volume is corrupted, and that's why it denied you.

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drspastic


Joined: 29 Aug 2008
Posts: 90
Location: ruse, bulgaria

PostPosted: Fri 19 Nov 2010, 15:47    Post subject:  

deleting /dev/sdb .... is the first thing i did.
it often worked with similar past problems and is damn good starting advice for anyone having mount issues in linux.
its just not that simple for some reason
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