06-07-2009, 06:21 AM | #1 |
Connoisseur
Posts: 80
Karma: 204
Join Date: Jun 2007
Device: Sony Librie, Irex DR1000S
|
Has anybody tried to mount an SD card with an ext3 filesystem?
I guess that the reason why the SD card is always mounted as FAT 32 is somehow hidden in the "/etc/fstab" (or similar) of the linux device (i.e., DR1000S).
I was wondering if anyone has succeeded to tweak this in order to be able to use an SD card formatted as ext3 (I guess this is possible, but I have never formatted an SD card as ext3). My desire to have an ext3 file system is mainly (besides getting rid of the number files limitations) that it would be possible to use symbolic links. Hence, it would be possible to store all the files in a particular folder, while in other folders we could use "tags" pointing to the files. I believe this may give us a better way to organize the files inside the card. Last edited by godel10; 06-07-2009 at 06:23 AM. Reason: Misprints |
06-07-2009, 07:01 AM | #2 |
Connoisseur
Posts: 56
Karma: 22
Join Date: Oct 2008
Location: Würzburg, Germany
Device: iRex DR1000S
|
I inserted an ext3 formatted SD card and the DR1000 wouldn't recognize it. It would have been very nice to avoid the quirks of vfat (illegal characters, capitalization).
However, I would be very careful with soft and hard links, because the DR1000's applications might be unprepared to deal with the fact that a file can have more than one name and corrupt the metadata.db files. |
Advert | |
|
06-08-2009, 09:31 AM | #3 |
Wizard
Posts: 4,293
Karma: 529619
Join Date: May 2007
Device: iRex iLiad, DR800SG
|
Not sure about the DR1000, but on the iLiad the SD card is defined in /etc/fstab as "vfat", which means FAT32/etc. The DR1000 is probably similar.
In theory, you should be able to change that to ext3 or maybe even auto, and let the DR1000 detect whether the card is Fat32 or ext3 so you can switch back and forth. I haven't tried it though. |
06-08-2009, 11:17 AM | #4 | |
Connoisseur
Posts: 80
Karma: 204
Join Date: Jun 2007
Device: Sony Librie, Irex DR1000S
|
Quote:
Code:
rootfs / auto defaults 1 1 proc /proc proc defaults 0 0 devpts /dev/pts devpts mode=0620,gid=5 0 0 usbdevfs /proc/bus/usb usbdevfs noauto 0 0 tmpfs /var tmpfs defaults 0 0 tmpfs /media/ram tmpfs defaults 0 0 /dev/mtdblock7 /home/root jffs2 defaults 0 0 On the other hand, the content of /etc/mtab is Code:
rootfs / rootfs rw 0 0 /dev/root / jffs2 rw 0 0 proc /proc proc rw 0 0 sysfs /sys sysfs rw 0 0 /dev/root /dev/.static/dev jffs2 rw 0 0 tmpfs /dev tmpfs rw 0 0 devpts /dev/pts devpts rw 0 0 tmpfs /var tmpfs rw 0 0 tmpfs /media/ram tmpfs rw 0 0 /dev/mtdblock7 /home/root jffs2 rw 0 0 /dev/mmcblk0p1 /media/mmcblk0p1 vfat rw,nosuid,nodev,noatime,fmask=0002,dmask=0002,codepage=cp437,iocharset=iso8859-1,utf8 0 0 Code:
Filesystem 1k-blocks Used Available Use% Mounted on rootfs 108544 38824 69720 36% / /dev/root 108544 38824 69720 36% / /dev/root 108544 38824 69720 36% /dev/.static/dev tmpfs 10240 72 10168 1% /dev tmpfs 63668 292 63376 0% /var tmpfs 63668 0 63668 0% /media/ram /dev/mtdblock7 4096 564 3532 14% /home/root /dev/mmcblk0p1 993408 374256 619152 38% /media/mmcblk0p1 |
|
06-08-2009, 11:30 AM | #5 |
Wizard
Posts: 4,293
Karma: 529619
Join Date: May 2007
Device: iRex iLiad, DR800SG
|
I wonder if it's using automount? There's got to be a config/script somewhere that is telling it that /dev/mmcblk0p1 has fstype=vfat.
|
Advert | |
|
06-09-2009, 04:52 AM | #6 |
Addict
Posts: 227
Karma: 322
Join Date: May 2009
Device: 1000s
|
I do not think this thread is necessary. We need more applications running in DR, instead of considering how to change a filesystem.
|
06-09-2009, 06:11 AM | #7 |
eBook Enthusiast
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
|
With the very greatest respect, it is for the original poster to determine whether or not a question is worth asking. If they think that it's worth asking, then for them, it IS worth asking.
|
06-09-2009, 09:06 AM | #8 |
Addict
Posts: 227
Karma: 322
Join Date: May 2009
Device: 1000s
|
I think it is also worth putting forward my options here. Never blaming somebody. On the contrary, I am sure there are many gifted people making innovations on DR in this forum.
For me, I would more like a djvu viewer...... Sorry for this anyway. |
06-09-2009, 09:39 AM | #9 | |
Connoisseur
Posts: 80
Karma: 204
Join Date: Jun 2007
Device: Sony Librie, Irex DR1000S
|
Quote:
For me this issue is almost my top priority (only below a djvu reader or a cbr/cbz reader), and what it is more important: I feel I can make some research on this topic (while I do not trust enough my capabilities to explore the development of a djvu reader). |
|
06-09-2009, 10:12 AM | #10 |
Wizard
Posts: 4,293
Karma: 529619
Join Date: May 2007
Device: iRex iLiad, DR800SG
|
|
06-09-2009, 10:15 AM | #11 |
Addict
Posts: 227
Karma: 322
Join Date: May 2009
Device: 1000s
|
Maybe I have submitted my option too harshly when I tried to convert all djvu files to PDF files which is a so boring job in this morning. Yes, everything is possible and worth doing research. I just want to express my willing and make my option clear that what are most of the end-users wanting and waiting for now. If we have a djvu viewer, I don't need to spend the whole morning.
I even sometimes also wonder why DR that is Linux-based can not read a ext3 filesystem but works well with fat32. The Ubuntu and Suse sometimes live not very well with the windows system in my computer. Yes, why not both?? En.... It is the matter of the time and the efforts....Maybe.... So I think I have used wrong words like, "this thread is necessary". BTW, Have I written something like "Is it necessary to buy a DR1000S"? Last edited by yingwu; 06-09-2009 at 10:24 AM. |
06-09-2009, 10:38 AM | #12 |
Wizard
Posts: 4,293
Karma: 529619
Join Date: May 2007
Device: iRex iLiad, DR800SG
|
Getting the DR to recognize an ext3 SD card should be pretty minimal effort. In theory it's just a matter of finding a config setting and changing it. It's not like someone is spending weeks writing code to support ext3 instead of DJVU.
|
06-10-2009, 02:09 PM | #13 |
Junior Member
Posts: 8
Karma: 26
Join Date: Oct 2008
Device: none
|
|
06-10-2009, 02:47 PM | #14 |
Wizard
Posts: 4,293
Karma: 529619
Join Date: May 2007
Device: iRex iLiad, DR800SG
|
How about EXT2?
|
06-12-2009, 12:58 PM | #15 |
Junior Member
Posts: 8
Karma: 26
Join Date: Oct 2008
Device: none
|
Nope - looking at the config in http://developer.irexnet.com/pub/iOn...6.24-mx.tar.gz, disabled filesystems:
Code:
cat arch/arm/configs/er0200_defconfig | grep "_FS is" # CONFIG_SCSI_PROC_FS is not set # CONFIG_EXT2_FS is not set # CONFIG_EXT3_FS is not set # CONFIG_EXT4DEV_FS is not set # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set # CONFIG_ISO9660_FS is not set # CONFIG_UDF_FS is not set # CONFIG_NTFS_FS is not set # CONFIG_CONFIGFS_FS is not set # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_HFSPLUS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set # CONFIG_VXFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set # CONFIG_DEBUG_FS is not set Code:
cat arch/arm/configs/er0200_defconfig | grep "_FS=" CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_FS=y CONFIG_JFFS2_FS=y |
Thread Tools | Search this Thread |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Calibre leaving behind garbage in the filesystem? | tobidope | Calibre | 3 | 07-13-2010 03:39 PM |
PB360 Filesystem error | ArchCarrier | PocketBook | 4 | 06-06-2010 08:46 AM |
Can't mount my SD Card - Sony Touch - Linux | rohan_orton | Calibre | 2 | 01-20-2010 12:16 PM |
Character encoding in the filesystem | Jellby | Bookeen | 1 | 03-30-2008 05:36 AM |
filesystem formats supported on the SD card | jakeluck | Sony Reader | 8 | 12-21-2006 02:46 AM |