Do any of you have any suggestions on how to do this? I ran parted via ADB on my 8GB tablet's internal storage (/dev/block/mmcblk0)
Code:
Disk /dev/block/mmcblk0: 7818MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 4194kB 25.2MB 21.0MB ext4 EFS
2 25.2MB 27.3MB 2097kB SBL1
3 27.3MB 29.4MB 2097kB SBL2
4 29.4MB 37.7MB 8389kB PARAM
5 37.7MB 46.1MB 8389kB KERNEL
6 46.1MB 54.5MB 8389kB RECOVERY
7 54.5MB 789MB 734MB ext4 CACHE
8 789MB 810MB 21.0MB MODEM
9 810MB 2278MB 1468MB ext4 FACTORYFS
10 2278MB 7281MB 5004MB ext4 DATAFS
11 7281MB 7818MB 537MB ext4 HIDDEN
I knew more or less what each partition did but was curious about "HIDDEN" so I mounted it to see what was there. All that was in that partition is Retail.apk (its the "Demo Mode" that runs when the tablet is sitting at Best Buy) and the sample multimedia files used in the demo. In total these files were less than 100MB and the multimedia already copied on the /sdcard/Samsung directory in the main storage.
537MB is quite significant considering how littte space there is on this 8GB model? The next time I do a factory reset can I just delete "HIDDEN" and DATAFS and create a new larger DATAFS partition with no ill effects? I'm thinking this would work because they are contiguous and enlarging DATAFS would not change its partition number so the mounting scripts during the boot process wouldn't get thrown off.
Are there any other suggestions on how I could reclaim 537 MB of internal storage?
I've done it successfully. delete p9,p10,p11 and recreate them in new size.
parted can only create ext2 partition, need tune2fs and e2fsck to convert ext2 to ext4 fs.
first, use tar to backup the system and data partition(p9,p10) to external_sd,
after repartition can restore them.
If you want to do it, must be careful, it's VERY DANGEROUS, maybe brick your device.
my device:Samsung Galaxy Tab2 P3110, CM 10.1.3RC2
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For more detail you can have a look of this, it's in chinese and for kindle fire, but i think the commandline code you can understand.
http://bbs.imp3.net/thread-10515210-1-1.html
Have you succeeded in using all memory? I repartitioned device, in clockworkmod everything is fine, but I can't access all the space from system. For DATAFS I have now 5480MB instead of 5004MB, but system says me, that internal storage is still ~5GB with only 4,5GB available. I even hard resetted device - nothing changed. How to make system see all space?
it seems that all the memory of DATAFS are ok for my p3110, have a look of the snapshots below.
i use cm 10.1.3, i dont know which rom do you flash, stock rom?
sorry it is in chinese, but you could see the numbers of memory.
No problem with language, everything is clear . I'm using stock odexed Samsung 4.1.2 rom with my own changes for tabletui and a couple of others (like editing systemui.apk). I guess, that Samsung gives fixed amount of space for /data and I haven't found where it is. Anyway, thank you for idea
probably obvious to most, but don't delete all those partitions! i was in the middle of surgery via adb, and stupidly typed
Code:
du -hs
and the device rebooted.
http://forum.xda-developers.com/galaxy-tab-2/help/argh-deleted-internal-partitions-boot-t2912866
Related
Hi people, i want to resize the internal partition of my P3100.
Can anyone help me?
First of all I decided to put all the memory available in user app (is /data?) so I can install more app, after this I need to know ho to resize /system partition and how much space I can take (I think 500MB is perfect)
After I need to enlarge my user app partitions without lost all my app and data app
Filesystem Size Used Free Blksize
/dev 345M 48K 345M 4096
/mnt/asec 345M 0K 345M 4096
/mnt/obb 345M 0K 345M 4096
/system 1G 363M 1014M 4096
/data 4G 3G 1G 4096
/cache 688M 11M 677M 4096
/efs 19M 8M 11M 4096
/storage/sdcard0 4G 3G 1G 4096
/storage/sdcard1 29G 10G 19G 32768
P.s.: what is it /mnt/asec and mntt/obb?
Can anyone make a short info about all the filesystem?
Aliendex said:
Hi people, i want to resize the internal partition of my P3100.
Can anyone help me?
First of all I decided to put all the memory available in user app (is /data?) so I can install more app, after this I need to know ho to resize /system partition and how much space I can take (I think 500MB is perfect)
After I need to enlarge my user app partitions without lost all my app and data app
P.s.: what is it /mnt/asec and mntt/obb?
Can anyone make a short info about all the filesystem?
Click to expand...
Click to collapse
I just want my girlfriend to be in the mood tonight. I think I have a better chance of that.
DigitalMD said:
I just want my girlfriend to be in the mood tonight. I think I have a better chance of that.
Click to expand...
Click to collapse
Very helpfull
Does this guide works?
[HOW-TO] Easily resize system + data partition!
The situation after 2 months is this:
System storage: 342MB used of 1024MB
Internal storage: 1.8GB used of 4.6GB
If i resize the system partition I can have a total of 5.1GB / 5.3GB for user apps
:cyclops:
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Device: Teclast P78HD tablet, Allwinner A31 SoC, Android 4.4.2 (rooted) :::: Software: Busybox X (with fdisk, vi, etc.)
The Teclast P78HD tablet has a small 8GB internal eMMC SDcard with an external microSD slot. In order to best make use of the Link2SD utility, I chose to split in half the almost empty 4.7GB (usable) internal SD FAT32 partition and then format the new (primary) second partition to EXT2 EXT3 or EXT4 as used by the Link2SD app.
I used Busybox X to fdisk /dev/block/mmcblk0 ( /mnt/sdcard )
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After rebooting, the DiskInfo app showed P1 ( mmcblk0p1 ) partition had shrunk to 2.4GB and, as expected, a new (unmounted) 2.3GB P4 ( mmblk0p4 , type 83, Linux ) was there too.
Connecting to a PC vis USB, I tried to format P4 to ext4 using MiniTool Partitioner (Windows) but it did not see the new partition, I then tried Gparted under Linux but it indicated that neither P1 or P4 existed. Gparted just showed a large 4.7GB "unallocated" block.
[ QUESTIONS ]
1. How do I format the new P4 mmblk0p4 partition to EXT4 using Busybox X on the tablet itself ?
2. Should I use some sort of fsck command to fix any side effects of simply truncating the original P1 mmblk0p1 FAT32 partition ?
3. What entry should I add to the tablet's /fstab.sun6i file shown below to make it automount at boot time ?
Code:
# Android fstab file.
#<src> <mnt_point> <type> <mnt_flags and options> <fs_mgr_flags>
# The filesystem that contains the filesystem checker binary (typically /system) cannot
# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK
/dev/block/by-name/system /system ext4 ro wait
/dev/block/by-name/cache /cache ext4 noatime,nosuid,nodev,nomblk_io_submit,barrier=1 wait,check
/dev/block/by-name/databk /databk ext4 noatime,nosuid,nodev,nomblk_io_submit,barrier=1 wait,check
/dev/block/by-name/data /data ext4 noatime,nosuid,nodev,nomblk_io_submit,barrier=1,noauto_da_alloc wait,check,encryptable=/dev/block/by-name/databk
/devices/virtual/block/nandj /mnt/sdcard vfat rw,relatime,fmask=0000,dmask=0000 wait,check,noemulatedsd,voldmanaged=sdcard:auto
/devices/platform/sunxi-mmc.2/mmc_host /mnt/sdcard vfat rw,relatime,fmask=0000,dmask=0000 wait,check,noemulatedsd,voldmanaged=sdcard:auto
/devices/platform/sunxi-mmc.0/mmc_host /mnt/extsd vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=extsd:auto
/devices/platform/sunxi-mmc.1/mmc_host /mnt/extsd vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=extsd:auto
/devices/platform/sw-ehci.1 /mnt/usbhost1 vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=usbhost1:auto
/devices/platform/sw_hcd_host0 /mnt/usbhost1 vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=usbhost1:auto
/devices/platform/sw-ohci.1 /mnt/usbhost1 vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=usbhost1:auto
BTW, despite the tablet's fstab entries, there is no /devices/platform directory but there is a /sys/devices/platform directory. Also note that sdcard0 and sdcard1 seem to point to the same place with the same files. I assume that my new partition should point to /storage/sdcard2
Did you ever figure it out? Thinking about splitting my internal storage and looking up for all the info I can find....
Goal:
Motivation: As my phone (Sony Ericsson SK17i) has low internal memory, it is essential to have a good MicroSD card with sd-ext and move some parts of /data to /sd-ext.
Problem: I am not satisfied with random I/O performance on ext4.
I, however, don't want to sacrify safety by disabling journaling.
My HW&SW:
My MicroSD: Samsung EVO MB-MP32D/EU, 32GB.
My phone: Sony Ericsson Xperia Mini Pro (SK17i)
ROM: LegacyXperia CM11
Ext4 mount options: noatime,nodiratime,barrier=1
My laptop OS (I ran mkfs.ext4, GParted and fdisk tools there): Ubuntu 12.04, up-to-date
Before making any change, I did a byte-by-byte backup of the original raw data, that is roughly dd if=/dev/sdc bytes=(some size) | compression > output_file. If you are interested in it, you can download the https://public.v6ak.com/samsung-evo-MB-MP32D--EU--32GB/sdc.gz.bz2 (< 1KiB) backup file.
What and why I did:
First, I resized the FAT32 (without reformatting) to 20GiB by GParted,
Second, I determined the sdcard characteristics by flashbench tool using command sudo ./flashbench -a /dev/sdc --blocksize=1024: https://public.v6ak.com/samsung-evo-MB-MP32D--EU--32GB/
There is my conclusion:
Code:
erase_block = 16777216
multi_plane = 16384
page = 8192
So, I took recommendation from https://wiki.gentoo.org/wiki/SDCard#Solution_2:_Tuned_ext4:
Code:
filesystem_block = min(page, 4096) = 4096 # Values higher than 4096 are not supported, so I had to pick 4096.
stride = multi_plane / page = 2 # Should I use page, or filesystem_block?
stripe_width = erase_block / page = 2048 # Should I use page, or filesystem_block?
# The resulting command:
sudo mkfs.ext4 -E stride=2,stripe-width=2048 -b 4096 /dev/sdc2
Third, I made another partitions in the free space. Now, I am just interested in the /dev/sdc2, which is sd-ext. The start of all the partitions is divisible by 8192, so I hope they are all properly aligned:
Code:
Disk /dev/sdc: 32.0 GB, 32010928128 bytes
255 heads, 63 sectors/track, 3891 cylinders, total 62521344 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000cf13
Device Boot Start End Blocks Id System
/dev/sdc1 8192 41951231 20971520 c W95 FAT32 (LBA) # The original partition
/dev/sdc2 41951232 50339839 4194304 83 Linux # The sd-ext partition
/dev/sdc3 50339840 52436991 1048576 83 Linux # A legacy partition, nothing important
/dev/sdc4 52436992 56631295 2097152 b W95 FAT32 # Titanium Backup partition, not important at the moment
The results:
I used A1 SD Bench to benchmark both FAT32 (i.e. /dev/sdc1) and ext4 (i.e. /dev/sdc2) filesystems. I did just the random I/O test when phone was in airplane mode (=> no noise from network events) and charging:
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I've seen some suggestions it should perform several times better: http://forums.storagereview.com/index.php/topic/36678-samsung-evo-sd-memory-card-review-discussion/?p=287587 (Well, SD and microSD might differ, but I hope it not to differ much.)
There are my questions:
* Why is random write performance on the original FS significantly lower than on the benchmark above?
* Random writes are about twice faster on FAT32 than on ext4. Is it caused just by journaling?
* Why is random read significantly better on FAT32 than on ext4?
* Did I choose the right stripe/stride/blocksize? Should I double them?
* Should I perform another benchmark?
P.S.: Sorry there are no hyperlinks, I am not allowed to post them. I've tried to make the references as friendly as possible.
Hello,
I got stuck and I need some help.
The phone is ZTE v987. There was bgcngm's ROM V4.0B0MOD inside.
I pulled-out-&-pushed-in the battery and after boot there was a prompt that my data needed to be erased. (I'm not excatly sure what it was). I freaked out. Turned off and boot into recovery mode (vol up + power). Performed factory reset and tried to restore backup. It didn't work. I got messages:
Can't mount /system!
Can't mount /data!
Can't mount /cache!
Click to expand...
Click to collapse
So I tried to format all of the above. Then I tried to restore individually /system, /data, /cache. All the same.
When I enter the Recovery I get errors like here:
E: Can't mount /cache/recovery/command
E: Can't mount /cache/recovery/log
E: Can't open /cache/recovery/log
E: Can't mount /cache/recovery/last_log
E: Can't open /cache/recovery/last_log
Click to expand...
Click to collapse
There are mentioned some apps like Heimdall but I couldn't find a version for my device and I'm not exactly sure what I should do.
What's more, I found info about eMMC damage and followed the link to check if my eMMC was good or bad.
I typed the command and the output was empty:
adb shell
~ # dmesg | grep mmc0
dmesg | grep mmc0
~ #
Click to expand...
Click to collapse
I read somewhere it's possible that I don't have grep installed (maybe because I wiped the data).
So I tried another command to list the eMMC-chip partition info:
~ # fdisk -l /dev/block/mmcblk0
fdisk -l /dev/block/mmcblk0
Warning: ignoring extra data in partition table 5
Warning: ignoring extra data in partition table 5
Disk /dev/block/mmcblk0: 3853 MB, 3853516800 bytes
1 heads, 16 sectors/track, 470400 cylinders
Units = cylinders of 16 * 512 = 8192 bytes
Device Boot Start End Blocks Id System
/dev/block/mmcblk0p1 65 64 2147483647+ 5 Extended
Partition 1 does not end on cylinder boundary
/dev/block/mmcblk0p2 1665 2944 10240 83 Linux
Partition 2 does not end on cylinder boundary
/dev/block/mmcblk0p3 2945 4224 10240 83 Linux
Partition 3 does not end on cylinder boundary
/dev/block/mmcblk0p4 5825 6592 6144 83 Linux
Partition 4 does not end on cylinder boundary
/dev/block/mmcblk0p5 8385 91584 665600 83 Linux
/dev/block/mmcblk0p6 238785 64 2145573887+ 83 Linux
~ #
Click to expand...
Click to collapse
I also tried to mount /system and /data in adb but it failed:
~ # mount /system
mount /system
mount: mounting /[email protected] on /system failed: Invalid argument
~ # mount /data
mount /data
mount: mounting /[email protected] on /data failed: Invalid argument
Click to expand...
Click to collapse
I've also downloaded the ROM and tried to install from SD.
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I've saved the log and here are bottom lines:
Updating kernel
open emmc partition "boot"
contents of partition "boot" didn't match EMMC:boot:4941824:a63fb5e2f91e9c21ae76325d15d98fd36c50c41b:4941824:a63fb5e2f91e9c21ae76325d15d98fd36c50c41b
file "EMMC:boot:4941824:a63fb5e2f91e9c21ae76325d15d98fd36c50c41b:4941824:a63fb5e2f91e9c21ae76325d15d98fd36c50c41b" doesn't have any of expected sha1 sums; checking cache
failed to stat "/cache/saved.file": No such file or directory
failed to load cache file
Flashing partition: BOOT
script aborted (no error message)
script aborted (no error message)
Installer Error (Status 7)
Click to expand...
Click to collapse
Also I've got recovery.log but it's a long one and can paste here if it is needed.
I didn't try to flash trough SP Flash Tool anything because I didn't want to make things worse.
That's all the info I could gather. I don't know if it is helpful at all but I've run out of clues.
I'd be very grateful for any help.
PS. Right now I'm not able to charge the battery. For one second the red light blinks and then the screen with battery with red strip at the bottom appears and I don't believe it's charging.
WARNINGS:
NEVER try to flash in "format all" mode ! Otherwise, you will LOSE all secure and identifying infos for your device. Like IMEI.
Keep your backup files safe and secure ! If you can, encrypt them.
Never try to share your backups or your security and privacy will be compromised.
USE AT YOUR OWN RISK. I AM NOT RESPONSIBLE FOR YOUR ACTIONS.
Why to backup ?
If you backup the partitions listed here, you can avoid mistakes without risking all of your device's identification details.
Like IMEI, WiFi MAC, Bluetooth MAC, calibration data, NVDATA, NVRAM, RADIO/MODEM/BASEBAND and others.
How to backup ?
You can backup using TWRP, PBRP, DD, SP Flash Tool or anyway you want.
How to restore ?
You can restore using TWRP, PBRP, DD, SP Flash Tool or anyway you want.
I suggest you to use same tool of backup.
Partition: frpDescription: This partition stores persistent data for factory reset protection. Like google account and miaccount/micloud.Size: 1.024 KiB (1 MiB)Block: /dev/block/mmcblk0p5Start address: 0x5508000Length: 0x100000
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Partition: md_udcDescription: This partition stores master keys for encrypting and decrypting files.Size: 23.144 KiB (22,6 MiB)Block: /dev/block/mmcblk0p9Start address: 0x6e08000Length: 0x169a000
Partition: nvcfgDescription: This partition stores variable configs of NVDATA and NVRAM.Size: 32.768 KiB (32 MiB)Block: /dev/block/mmcblk0p11Start address: 0xa4a2000Length: 0x2000000
Partition: nvdataDescription: This partition stores variable data of secure and identifying infos for your device. Like IMEI, WiFi MAC, Bluetooth MAC, calibration data and others.Size: 65.536 KiB (64 MiB)Block: /dev/block/mmcblk0p12Start address: 0xc4a2000Length: 0x4000000
Partition: nvramDescription: This partition stores persistent data of secure and identifying infos for your device. Like IMEI, WiFi MAC, Bluetooth MAC, calibration data and others.Size: 65.536 KiB (64 MiB)Block: /dev/block/mmcblk0p21Start address: 0x19f00000Length: 0x4000000
Partition: persistDescription: This partition stores persistent data for factory reset protection. Like google account and miaccount/micloud.Size: 49.152 KiB (48 MiB)Block: /dev/block/mmcblk0p13Start address: 0x104a2000Length: 0x3000000
Partition: proinfoDescription: This partitions stores persistent data of default structure for NVRAM/RADIO/MODEM/BASEBAND.Size: 3.072 KiB (3 MiB)Block: /dev/block/mmcblk0p19Start address: 0x18200000Length: 0x300000
Partition: protect1 (or protect_f)Description: This partition stores variable data of SIM/RADIO/MODEM/BASEBAND settings and infos.Size: 8.192 KiB (8 MiB)Block: /dev/block/mmcblk0p15Start address: 0x164a2000Length: 0x800000
Partition: protect2 (or protect_s)Description: This partition stores variable data of SIM/RADIO/MODEM/BASEBAND settings and infos.Size: 11.640 KiB (11,36 MiB)Block: /dev/block/mmcblk0p16Start address: 0x16ca2000Length: 0xb5e000
Partition: seccfgDescription: This partition stores the state of the bootloader. (Locked or Unlocked.)Keep atention: If you backup this partition in locked bootloader, it will keep locked after restoring. If you want to backup this partition in unlocked bootloader, you need to unlock bootloader first.Size: 8.192 KiB (8 MiB)Block: /dev/block/mmcblk0p17Start address: 0x17800000Length: 0x800000
Do you need help with your MERLIN device ?
Read this FAQ: https://forum.xda-developers.com/t/...for-merlin-redmi-10x-4g-redmi-note-9.4225177/