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-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   N900 - Hardrive is in Read Only Mode (https://talk.maemo.org/showthread.php?t=72799)

salahuddin 2011-08-07 08:37
Re: N900 - Hardrive is in Read Only Mode
 
Quote:
Originally Posted by n900 lover (Post 1000721)
it happened to me so with the advice from the good folks here, i ran
sudo gainroot
fsck -a /dev/mmcblk0p1

and then i rebooted and everything was cool!

please correct me if im wrong.

Peace.
thanks yar

this way solved my problem also

manojkumaru 2012-02-01 05:55
Re: N900 - Hardrive is in Read Only Mode
 
Someone active here can help me??? I have posted this already in The Great NITDroid forum, but this thread seems more relevant too. So re-posting here, sorry for my ignorance.
Scenario is below:

I have a got this problem, 'Memory read-only. Cannot write to the device'.

The problem maybe with I have created partitions, but with wrong block size.

I have the 8GB appln install space eMMC. With that, my partition table appeared to be
Device Boot Start End
/dev/mmcblk0p1 2 688258
/dev/mmcblk0p2 688258 950401
/dev/mmcblk0p3 950402 974977

Instead of usual

Device Boot Start End
/dev/mmcblk0p1 2 884865
/dev/mmcblk0p2 884866 950401
/dev/mmcblk0p3 950402 974977.


So I carried out a partitioning like

n
p
1
First cylinder: 2
Last cylinder: 600000

n
e
First cylinder: 600001
Last cylinder: 688258
n
First cylinder: 600001
Last cylinder: 688258
t

Is there a problem due to this? And i now cannot copy any files into the eMMc or even move within. Shows memory read only or input/output error- when done from xterm.

And also when tried to untar the NITDroid archive, it shows bad input. Input/output error. Says the file is not actually of tar.gz type archive when actually it is.

Code:
Code:
root
umount /dev/mmcblk0p1
fsck -a /dev/mmcblk0p1

fsck 1.41.3.maemo0 (12-Oct-2008)
dosfsck 2.11, 12 Mar 2005, FAT32, LFN
Seek to 22552772096:Invalid argument
mounting it back again fails too.
Code:
Code:
mount /dev/mmcblk0p1 /home/user/MyDocs/
mount: mounting /dev/mmcblk0p1 on /home/user/MyDocs failed!
Device or resource busy
Anyone has an idea what the problem is?

biketool 2013-07-11 21:17
Re: N900 - Hardrive is in Read Only Mode
 
I am also having what I thought was the regular read only issue but even when I unmount and remount -o rw I still get permission denied. Unless I try as root, then no problems at all. As this is fat32 there shoudnt be any chown issues...
It is not a corruption issue fdisk fsck!!(yipes) comes back clean every time.
Been a long time since I had to deal with unix read/write problems so my magic is weak and google isn't helping.

pichlo 2013-07-12 00:54
Re: N900 - Hardrive is in Read Only Mode
 
Quote:
Originally Posted by biketool (Post 1358358)
It is not a corruption issue fdisk comes back clean every time.
fdisk? :eek:
I don't see how you can still have read-only issues after a correct application of fdisk ;)

Seriously, try checking the partition in Windows. Or use fsck on your phone, but I'd rather recommend the Windows way.

biketool 2013-07-12 06:13
Re: N900 - Hardrive is in Read Only Mode
 
pichlo, it is weirder than that, it is not actually read-only since I can write to the partition as root. I tried sudo chmod -R 777 /home/user/MyDocs but it didn't not fix the prob. Being a fat32 partition chown does nothing and fails.
Last night I ssh'd in to the N900 ran midnight commander as sudo and installed a FTP daemon on my laptop and used this acrobatic method to transfer my wifes music to the phone MyDocs where I normally just mount MyDOcs via wifi/SCP on my laptop.
(edit)Btw, I was tired and realized I had typed fdisk on my post, fortunately I had used fsck on the N900!

I know this is something with permissions but it has been ten years at least since I have had a permissions issue like this.

pichlo 2013-07-12 11:12
Re: N900 - Hardrive is in Read Only Mode
 
I had the same on my N900, only on my SD card. Read only unless written to as root. Being FAT ruled out permissions, leaving only a file system corruption that root just ignored and burst in with all guns blazing. I had an issue with the USB port preventing me to connect it to a Windows machine so I just reformatted the card on the device. That fixed it.

biketool 2013-07-12 11:43
Re: N900 - Hardrive is in Read Only Mode
 
pichlo, were you getting errors or clean in fsck?

For some reason bootmenu wont work so I am stuck with fsck'ing from a running N900. But again fsck comes out clean.

Code:
~ $ sudo umount /dev/mmcblk0p1
~ $ sudo fsck -a /dev/mmcblk0p1
fsck 1.42.5 (29-Jul-2012)
dosfsck 3.0.12, 29 Oct 2011, FAT32, LFN
/dev/mmcblk0p1: 9120 files, 288375/442377 clusters
Code:
~ $ sudo mount
rootfs on / type rootfs (rw)
ubi0:rootfs on / type ubifs (rw,bulk_read,no_chk_data_crc)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
tmpfs on /tmp type tmpfs (rw,noatime,size=1024k)
tmpfs on /var/run type tmpfs (rw,nosuid,noatime,size=256k,mode=755)
none on /dev type tmpfs (rw,noatime,size=10240k,mode=755)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,noatime,size=65536k)
/dev/mmcblk0p2 on /home type ext3 (defaults)
/home/opt on /opt type none (bind)
nodev on /sys/kernel/debug type debugfs (0)
/opt/pymaemo/usr/lib/python2.5 on /usr/lib/python2.5 type bind (bind)
/opt/pymaemo/usr/share/pyshared on /usr/share/pyshared type bind (bind)
/opt/pymaemo/usr/lib/pyshared on /usr/lib/pyshared type bind (bind)
/opt/pymaemo/usr/share/python-support on /usr/share/python-support type bind (bind)
/opt/pymaemo/usr/lib/python-support on /usr/lib/python-support type bind (bind)
/dev/mmcblk0p1 on /home/user/MyDocs type vfat (0)
just an example I made a directory called hats
Code:
~/MyDocs $ sudo chmod -R 777 /home/user/MyDocs/
~/MyDocs $ rm -rf hats/
rm: cannot remove 'hats': Permission denied
~/MyDocs $ sudo rm -rf hats
~/MyDocs $

biketool 2013-07-12 12:52
Re: N900 - Hardrive is in Read Only Mode
 
What is the downside on dumping the contents of MyDocs into a directory on my laptop, fdisk'ing /dev/mmcblk0p1, and then pouring the contents back in. I dont think the N900 uses symlinks like the old Zaurus used to.

pichlo 2013-07-12 13:41
Re: N900 - Hardrive is in Read Only Mode
 
Quote:
Originally Posted by biketool (Post 1358451)
pichlo, were you getting errors or clean in fsck?
Dunno, I didn't bother to check. Just reformatted the blighter.

Quote:
For some reason bootmenu wont work so I am stuck with fsck'ing from a running N900. But again fsck comes out clean.
Have you tried Windows? The N900 fsck is not the best of breed, I'm afraid.

Quote:
Originally Posted by biketool (Post 1358465)
What is the downside on dumping the contents of MyDocs into a directory on my laptop, fdisk'ing /dev/mmcblk0p1, and then pouring the contents back in.
Depending on what program you use for the operation, the files' time stamps may get nuked. Otherwise no downside: just the opposite, it might improve performance a bit by fixing any fragmentation.

Only I would use the stock file manager to do the formatting rather than fsck. It should provide the same results but somehow feels more like the "approved" way.

biketool 2013-07-12 14:29
Re: N900 - Hardrive is in Read Only Mode
 
pichlo, the USB port was broken and I accidently desoldered a SM component fixing it, too small to replace IMHO; I dont know if running windows in a VM would be able to do the fix though the Ubuntu tool seems to work really well when I have used it with the other N900.
I will dump the MyDOcs to disk and format next week.


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