On my Archos 101IT I formatted the (removable) SD card as ext3. This was required for TitaniumBackup. When UrukDroid is booted, it mounts the file system as:
/dev/block/vold/179:17 on /mnt/storage/sdcard type ext3 (rw,nosuid,nodev,noexec,noatime,nodiratime,fmode=0 666,dmode=0777,errors=continue,data=ordered)
I do not want the fmode/dmode since these make it impossible to protect files on the storage (again, as required by TitaniumBackup).
Where can I change what to have this file system mounted with the right options on reboot?
ANSWER:
Urukdroid has a special script, /system/bin/mount_sdcard.sh, that mounts the SD card upon boot. This script understands (V)FAT and EXT4. Anything else is left to the vold automounter. Archos modded vold so it could do a bit more than stock A 2.1 vold, e.g., mount EXT3 file systems.
I upgraded the file system on the SD card to EXT4, and now mount_sdcard.sh mounts the SD card upon boot with the correct mount options.
Thanks to $aur0n for helping me solve this.
Upgrading an EXT2 or EXT3 file system to EXT4 is easy, see https://ext4.wiki.kernel.org/index.php/Ext4_Howto#Converting_an_ext3_filesystem_to_ext4 .
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Hi everyone,
I have project in mind but all i did to realize it didn't work.
my project is: i want to use the sdcard with 1st primary partition for saving Roms and updates to work with cwm (fat or fat32), 2nd prim. part. for my data aka "/mnt/sdcard" (ext4), 3rd prim.part. for apps using Link2SD (ext4) and last, optionally, 4th prim. part as SWAP (swap).
this is because i want to use ext4 for /mnt/sdcard but cwm can not read ext4 to backup/restore roms. i tried something with vold.fstab, and init.local.rc, init.rc, /etc/init.d/ but i couldn't achieved the goal.
can anyone help me achieve this?
thx
i'm using CM7 (CyanogenMod-7.1.0-MADTEAM Gingerbread 2.3.7) SD 8GB
512 MB (FAT/FAT32)
6 GB (EXT4)
1GB (EXT4)
128MB (SWAP)
i found a manner to make the first primary partition visible only to cwm: i made it hidden fat.
so android looking for the first usable partition of my sd to mount as sdcard. also by a script i can make swapable the last partition, but this is an option as it is not always wise to have a swap partition.
but some problems remain:
-android forces mount in fat32 for sdcard
-link2sd forces to mount the 2nd partition for its purposes, and it cant because the partition is already mounted as sdcard in fat32. link2sd has to mount the third partition for linked apps.
I am sharing this in this forum. Hope this is the right place.
I have been trying to re-partition my external SD card using one vfat partition and a bigger ext4 partition. Then my intention was to mount ext4 through an init.d script.
Partitioning (with gparted under Linux) was of course not a problem.
However, the system does not recognize the multi partition external SD card.
I am using Leedroid's HC (but I don't think that matter so much).
After system has fully started it says "SD card is damaged", do you want to format it.
So yes ... I formatted it. Then mounted it again under Ubuntu.
Back into gparted ... and ... now there is no partition table any more !
The android formatting has just written a vfat file system over the whole device without using a partition table.
So ... no luck.
Then I looked at the volume manager. In the file /etc/vold.fstab we can see:
dev_mount sdcard /mnt/sdcard 33 /devices/platform/msm_sdcc.2/mmc_host/mmc0
dev_mount sdcard2 /mnt/sdcard/ext_sd auto /devices/platform/msm_sdcc.4/mmc_host/mmc2
dev_mount usb /mnt/sdcard/usb auto /devices/platform/msm_hsusb_host.0
So, I re-formatted the SD card with a vfat and ext4 partition and changed the vold.fstab to:
dev_mount sdcard /mnt/sdcard 33 /devices/platform/msm_sdcc.2/mmc_host/mmc0
dev_mount sdcard2 /mnt/sdcard/ext_sd 1 /devices/platform/msm_sdcc.4/mmc_host/mmc2
dev_mount usb /mnt/sdcard/usb auto /devices/platform/msm_hsusb_host.0
(so I changed "auto" into "1" in the second line)
Well after booting ... no good! System still thinks SD card is damaged and proposed to re-format it.
I am guessing there must be a way tricking the vold daemon into using the first partition (vfat) as file system instead of the whole device block ... but I have not found it yet.
Maybe I am missing something very simple here so any help would be appreciated.
Normally questions go in the Q&A section.
Never really checked into this but I don't think the Android framework has capability to handle more than one partition per device even if you supply the mount points.
On the color nook it works as you described because the primary boot device was the SD card. You might try searching through the Nook forum
DigitalMD said:
Normally questions go in the Q&A section.
Never really checked into this but I don't think the Android framework has capability to handle more than one partition per device even if you supply the mount points.
On the color nook it works as you described because the primary boot device was the SD card. You might try searching through the Nook forum
Click to expand...
Click to collapse
Well, I have multiple partitions on external SD card on my HTC Desire phone. They appear under /dev/block/mmcblkXp1 and /dev/block/mmcblkXp2. However, on the flyer I only see /dev/block/mmcblkYp1 (which is the first partition of the internal memory mounted on /sdcard). There is a different mechanism for the mount of /sdcard2 (external SD card). No entries in /dev/block are created for it.
I will have a look at Nook forum tonight. Thanks for response.
foobar66 said:
Well, I have multiple partitions on external SD card on my HTC Desire phone. They appear under /dev/block/mmcblkXp1 and /dev/block/mmcblkXp2. However, on the flyer I only see /dev/block/mmcblkYp1 (which is the first partition of the internal memory mounted on /sdcard). There is a different mechanism for the mount of /sdcard2 (external SD card). No entries in /dev/block are created for it.
I will have a look at Nook forum tonight. Thanks for response.
Click to expand...
Click to collapse
Android system needs first partition of sdcard to be vfat
Sent from my LT15i using XDA App
DooMLoRD said:
Android system needs first partition of sdcard to be vfat
Sent from my LT15i using XDA App
Click to expand...
Click to collapse
Well, OK ... but it does not work if there is a partition table !
So 2 partitions (1 VFAT and 1 ext4 does not work).
It only works when the whole block device just contains a VFAT file system (without partition table).
OK, I figured it out (kinda).
Apparently, when I create 2 partitions (1 VFAT and 1 ext4) via gparted under Ubuntu then the Flyer won't properly recognize the partition table (that is my guess). Don't know why ...
I created 2 partitions via CWM ... and now it is working fine.
So I have:
/dev/block/mmcblk1p1 -> VFAT
/dev/block/mmcblk1p2 -> EXT4
hi, just found this is SOLVE (congrats) and wondered whether this allows SD > supported 256GB on (G900f) S5.
Can you create many partitions on the SD (maybe up to 256) on a 1 TB microSD?
thanks
In order for Samba (SMB access to Android from Win) to be able to get to my external SD card I need to make a file system link within /sdcard (or /mnt/sdcard) to /emmc (or /mnt/emmc.)
How do I do that?
Thanks
If it is formatted as FAT, which it normally is, you can't AFAIK. If you format it as any Linux FS, you can just ln -s, but android might not recognize it as an sdcard. Maybe ICS would, or you could make an init script to mount it. ICS makes some use of ext4.
So ran out of storage in /data partition, decided to create 2 partitions in my external SD and i created it using Gparted, one is ext4 and the other is fat32, now the phone refuses to mount the ext4 partition from Link2SD.
Looking at the vold.fstab file and sysfs paths(/devices/platform/mtk-msdc.0) , it seems that our phone can mount only 2 (+1 otg) partitions ? (or is it just 2 sd cards ?)
is it even possible to mount the second partiton ?? (No /devices/platform/msm_sdcc )
I do know of the EMMC method, i don't like it ;p
A block for the second partiton is present in /dev/block,(mmcblk1p2) gonna mount and see what happens
gowtham121 said:
So ran out of storage in /data partition, decided to create 2 partitions in my external SD and i created it using Gparted, one is ext4 and the other is fat32, now the phone refuses to mount the ext4 partition from Link2SD.
Looking at the vold.fstab file and sysfs paths(/devices/platform/mtk-msdc.0) , it seems that our phone can mount only 2 (+1 otg) partitions ? (or is it just 2 sd cards ?)
is it even possible to mount the second partiton ?? (No /devices/platform/msm_sdcc )
I do know of the EMMC method, i don't like it ;p
A block for the second partiton is present in /dev/block,(mmcblk1p2) gonna mount and see what happens
Click to expand...
Click to collapse
hi, gowtham121
ROOT your phone first,
create 2 partitions as fat32 on sdcard
its work on my chd:fingers-crossed:
Hello,
OEM's rom doesn't handle ext4 for external storage and asks for reformatting to exfat, telling it is "corrupted".
Manually creating an exfat first partition and a second ext4 partition doesn't work to vold mount the partitions, but mounting manually works for using the filesystem, yet the system aggressively asks me to format the whole storage.
How should I proceed to format "correctly" my sdcard to make vold stop ask me to format, yet keeping a whole storage ext4 partition, or a small exfat partition and a big ext4 partition.
On device tools that touches /system are outright banned as it will break safetynet stuff. (But root is available)