Database Develop

[Q] Why would you Wipe Boot Partition?

Hello,
I am about to install CM7. I currently Have Nookie Froyo 0.6.8 with CWM 3.0.0.5. I believe I need to update to CWM 3.0.1.0 first. Do I need to wipe / format the boot partition first or will the update to CWM / CM7 do that? What data lives in boot curerntly and what would be a situation / reason for wiping the boot partitition? When is it ever done?
Thanks in advance!
~J

you should not wipe boot when installing cm7

mooja said:
you should not wipe boot when installing cm7
Click to expand...
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What would be a situation / reason for wiping boot? When is it ever done?

OK. thank you, but what would be a situation / reason for wiping the boot partitition? When is it ever done? I'm trying to learn about all aspects of rooting / cwm.
Thank you
~J

Not needed,running cwm will handle everything. Also the boot should stay so that SD keeps priority for recovery reasons.
There is a ROM Manager option to wipe data/cache, this should be done if changing rom types (ex nookie to CM7) but isn't usually needed between minor versions of the same rom unless issues arise.

It wipes the boot sequence, doesn't matter what rom you're going too, you need the boot data.
I've wiped it twice. Both times required I restored to stock before moving to a custom rom. Just wipe data and cache, and you'll be fine.

when going from nookie Froyo to CM7, you are changing the file system from EXT-3 to EXT-4. Remember to format /system /data /chache, and wipe Dalvik-cache within CWM 3.0.1.0 before installing the CM7 rom. By formating the three partitions in CWM 3.0.1.0 you upgrade the file system.
There is almost never a reason to format /boot. You will only cause problems that are annoying to fix.
Remember to do a backup in CWM before you format and flash CM7. You never know.

[Q] formatting internal memory

hello everyone,
i tried to google but didn't manage to find a way to format the internal memory of my Milestone. is it possible to do this?
i currently reverted to stock rom from Cyanogen7 and i'm trying to clear everything and reflash cyanogen/stock. i tried to do factory reset from recovery but it only delete user data.

From OR (Fufu)
Wipe Menu
If you want to clear everything.
wipe Dalvik cache,
wipe cache,
wipe data / Factory reset
wipe Ext - partition if you have one.

For access internal memory just for rooted phone, but for u come back to stock ( http://forum.xda-developers.com/showthread.php?t=696845 ) rom u need flash a device. If u want a install CM ( http://forum.xda-developers.com/showthread.php?t=941346 ) , u need run update, this script do evertihng! If you have apps in a ext partition, u need format this partition, "wipe ext".

[Q] Internal NAND is dead? Can't format data partition. Freeze and restart into CWM

Hi!
I have a little problem with my SGS. I used from a month CM 10.1 ROM and Semaphore 2.9.3 kernel. Today phone start up and after a few minutes restart into recovery. I tried reinstall ROM, recover backup etc but has no effects. I tried also flash Samsung JVP ROM (3 files, with re-partition) but phone restart like boot loop problem.... After all that i tried wipe all data/factory reset, format every partition. No errors shows in CWM but all data still are on partition data :/
Summary i can't format/erase data from partition:
data,
cache,
datadata,
sdcard (internal)
In CWM all partition format show results "Done" but data still are there.
But I can flash new system into system or new kernel into boot partition.
Any idea without NAND is dead ?

got pic on error? maybe dbdata
Sent from my GT-I9000 using xda premium

Ok...
Actually a I have lastest CM 10.1 and Semaphore kernel 3.0.0
When I tired CWM/Mounts and Starage Menu/format /data
See first attachment
After I go to CWM/advanced/show log:
See second attachment
And data on partition /data are still there...

Hi,
could the warning in the second screenshot be the Problem????
Okay it's only a warning not an error...but maybe that is the prob...

I searched about this warring "Wipe via secure discard failed, used discard" but I not found anything useful.

That's Bad :crying:
Another idea: Flashing back to an older Version of CWM-Recovery and then testing if data partition can be cleaned up...
Another question is : what means the Option "Wipe via secure discard"??? what is the effect, anyone knows???

freakymod2120 said:
That's Bad :crying:
Another idea: Flashing back to an older Version of CWM-Recovery and then testing if data partition can be cleaned up...
Click to expand...
Click to collapse
I tried that method clean up, factory reset/format with stock JPU and CF-Root-XX_OXA_JVP-v3.7-CWM3RFS, but no effects
I tried also with another Samsung ROM 2.1, 2.2 and 2.3...

Formating /system

Just wanted to know what happens when you format /system and /preload partitions.
Suppose you format /system from recovery. Can you boot into you ROM after that? Or is that where the ROM was?

dark_polok said:
Just wanted to know what happens when you format /system and /preload partitions.
Suppose you format /system from recovery. Can you boot into you ROM after that? Or is that where the ROM was?
Click to expand...
Click to collapse
If you format /system in recovery you blow away the ROM, definitely cannot boot after that. If you format /data as well, the only way you'll be able to recover is with an ADB sideload.

you_eeeeeediot said:
If you format /system in recovery you blow away the ROM, definitely cannot boot after that. If you format /data as well, the only way you'll be able to recover is with an ADB sideload.
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Click to collapse
Thanks.
What if I format /system + /data + cache and dalvik chache and then flash a custom rom right after that, without rebooting the phone in any way [meaning not rebooting into system or bootloader or recovery] that should be ok right? Coz I came from a S3 and that combination worked perfectly for it.
Also still have no idea what the /preload partition and formatting it does.

That's what I do when I update within a rom.
Wipe system, cache, dalvik. Flash rom, then wipe cache/dalvik again.
Just a habit after all the different recommendations from previous devs in the past.

dark_polok said:
Thanks.
What if I format /system + /data + cache and dalvik chache and then flash a custom rom right after that, without rebooting the phone in any way [meaning not rebooting into system or bootloader or recovery] that should be ok right? Coz I came from a S3 and that combination worked perfectly for it.
Also still have no idea what the /preload partition and formatting it does.
Click to expand...
Click to collapse
Yes you can wipe /system, /data and /cache and you're good to flash a ROM, no need to reboot back into recovery again. Dalvik-cache is located on /data, so no need to wipe dalvik when you're wiping data, it's redundant. There is no need to worry about wiping or formatting /preload in almost all situations, otherwise the ROM devs would be telling us to do it. Back in my Galaxy s3 days I remember some ROMs would wipe and flash /preload but I don't think it's a big deal on the One. If it needs to be done, the ROM installation script will handle it.
Most ROM installation scripts wipe /system so it usually isn't necessary to do it yourself. However I do it anyway just to insure a completely clean installation in case the dev's script is messed up (it does happen). Wiping /data is optional of course but it is recommended when changing the base version (for example, 4.1.2 to 4.2.2) or if you're anal like me you can wipe data when upgrading between HTC base versions (2.17 to 2.24 for instance). Some people don't ever wipe /data and don't have any problems, but I can guarantee many of the weird odd-ball issues on this forum could have been prevented with a full wipe.

erikikaz said:
That's what I do when I update within a rom.
Wipe system, cache, dalvik. Flash rom, then wipe cache/dalvik again.
Just a habit after all the different recommendations from previous devs in the past.
Click to expand...
Click to collapse
henrybravo said:
Yes you can wipe /system, /data and /cache and you're good to flash a ROM, no need to reboot back into recovery again. Dalvik-cache is located on /data, so no need to wipe dalvik when you're wiping data, it's redundant. There is no need to worry about wiping or formatting /preload in almost all situations, otherwise the ROM devs would be telling us to do it. Back in my Galaxy s3 days I remember some ROMs would wipe and flash /preload but I don't think it's a big deal on the One. If it needs to be done, the ROM installation script will handle it.
Most ROM installation scripts wipe /system so it usually isn't necessary to do it yourself. However I do it anyway just to insure a completely clean installation in case the dev's script is messed up (it does happen). Wiping /data is optional of course but it is recommended when changing the base version (for example, 4.1.2 to 4.2.2) or if you're anal like me you can wipe data when upgrading between HTC base versions (2.17 to 2.24 for instance). Some people don't ever wipe /data and don't have any problems, but I can guarantee many of the weird odd-ball issues on this forum could have been prevented with a full wipe.
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Very helpful replies guys. Thanks =}

Questions on how to do a complete, 100% wipe

There have been several threads about this in the past, but I couldn't find one which is actually up-to-date.
I have been flashing my N7000 for years now. I've been using several custom recovery menu's and ROMS and re-partitioned my internal storage as suggested here. I currently have the following installed on my phone:
NightOwl 20151030
PhilZ Touch 6.59.0
ClockworkMod v6.0.5.1 (as shown in PhilZ)
What I would like to do is perform a full, 100% wipe of my phone before re-flashing the same ROM I currently have installed, perhaps even update my recovery or whatnot in case my phone would benefit from it (suggestions are welcome).
The original instructions from the NightOwl thread mention the following when you want to manually update:
1. Copy Rom to your sdcard.
2. Boot into recovery
3. Flash the Rom (in current versions you dont need to reflash the gapps)
4. Wipe dalvik-cache and format the /cache partition (This will not delete your apps or data)
5. Reboot
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As mentioned these steps will not remove your apps or data. I understand that a "factory reset" does. However, I still wonder if this (including a factory reset) will actually wipe my phone 100% clean before flashing a new ROM.

That would be the following options in recovery
Factory reset to wipe data and cache
Format system
And if you want to wipe internal memory then format sdcard0.
Be careful of where you have the zip file of rom to flash again.

In CWM, go to "Mounts and Storage" section and there you'll find options to wipe totally everything.