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| The Following User Says Thank You to babyshamie For This Useful Post: | ||
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2011-01-17
, 22:22
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Posts: 2,102 |
Thanked: 1,937 times |
Joined on Sep 2008
@ Berlin, Germany
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#282
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Looks good so far, before carrying on assure yourself that it worked
Read the desired size for /home, aka optfs. But you have to apply a new partition table, because having MyDocs in the first partition is somehow hardcoded in Maemo.
Now after you are assured carry on with first
followed by this one command over these 5 lines
It parses the text between the "" to the file named table. Then apply the table to your device
Now reboot again to make that partition setup known to the kernel
After reboot carry on with creating the filesystem for MyDocs partition and mount it
Voila, your done!
Code:
df
Now after you are assured carry on with first
Code:
sudo gainroot
Code:
echo "unit: sectors > /dev/mmcblk0p1 : start= 56631360, size= 4194304, Id= c > /dev/mmcblk0p2 : start= 64, size= 56631296, Id=83 > /dev/mmcblk0p3 : start= 60825664, size= 1572864, Id=82 > /dev/mmcblk0p4 : start= 0, size= 0, Id= 0" > table
Code:
sfdisk --no-reread /dev/mmcblk0 < table
Code:
reboot
Code:
sudo gainroot mkfs.vfat -F32 -n MyDocs /dev/mmcblk0p1 mount /dev/mmcblk0p1 /home/user/MyDocs
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2011-01-17
, 22:55
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Posts: 71 |
Thanked: 9 times |
Joined on Jun 2010
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#283
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Originally Posted by michaaa62
Looks good so far, before carrying on assure yourself that it workedRead the desired size for /home, aka optfs. But you have to apply a new partition table, because having MyDocs in the first partition is somehow hardcoded in Maemo.Code:df
Now after you are assured carry on with firstfollowed by this one command over these 5 linesCode:sudo gainroot
It parses the text between the "" to the file named table. Then apply the table to your deviceCode:echo "unit: sectors > /dev/mmcblk0p1 : start= 56631360, size= 4194304, Id= c > /dev/mmcblk0p2 : start= 64, size= 56631296, Id=83 > /dev/mmcblk0p3 : start= 60825664, size= 1572864, Id=82 > /dev/mmcblk0p4 : start= 0, size= 0, Id= 0" > tableNow reboot again to make that partition setup known to the kernelCode:sfdisk --no-reread /dev/mmcblk0 < tableAfter reboot carry on with creating the filesystem for MyDocs partition and mount itCode:rebootVoila, your done!Code:sudo gainroot mkfs.vfat -F32 -n MyDocs /dev/mmcblk0p1 mount /dev/mmcblk0p1 /home/user/MyDocs
thax.thax.thax..very much, I can now access it,wooo..but i have 25gb for installing apps and 2gb on MyDocs,,but its does not really matter though i wanted only 8gb for installing apps...thx again
Last edited by babyshamie; 2011-01-17 at 22:57.
| The Following User Says Thank You to babyshamie For This Useful Post: | ||
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2011-01-17
, 23:23
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Posts: 2,102 |
Thanked: 1,937 times |
Joined on Sep 2008
@ Berlin, Germany
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#284
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but i have 25gb for installing apps and 2gb on MyDocs,,but its does not really matter though i wanted only 8gb for installing apps
If you really want to repartition 8GB optfs and 24 GB MyDocs you have to backup all your stuff, because during the procedure both are deleted and one after the other rebuild from the backup like in solution #3
http://wiki.maemo.org/Repartitioning_the_flash
| The Following User Says Thank You to michaaa62 For This Useful Post: | ||
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2011-01-18
, 07:44
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Posts: 2,102 |
Thanked: 1,937 times |
Joined on Sep 2008
@ Berlin, Germany
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#286
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Originally Posted by n900shamie
Make sure you understand the solution fully, know about the risks of loosing everything if you not backup properly!
can anyone explain and give a table of how to have 10gb for install and the rest for MyDocs,i couldnt manage with the ideas provided on wiki.
thx
Read, digest, understand or ask your questions before doing something irresponsible, it saves your nerves!!!
This is the table for solution #3 only. It is the temporary table because of the two zero'ed partition type entries, which will not get mounted during reboot!
Code:
echo "unit: sectors > /dev/mmcblk0p1 : start= 64, size= 39854080, Id=0 > /dev/mmcblk0p2 : start= 39854144, size= 20971520, Id=0 > /dev/mmcblk0p3 : start= 60825664, size= 1572864, Id=82 > /dev/mmcblk0p4 : start= 0, size= 0, Id= 0" > table
Edit: Documentation of the calculation:
Start from the end, swap partition will not get changed [ignore it]. The first partition must start at 64!!!
Code:
10G=1024*1024*10*2=20,971,520 Sectors is the size of partition2 60825664 minus 20,971,520 = 39854144 is the starting value for partition2 39854144 minus 64 = 39854080 is the size of partition!
| The Following User Says Thank You to michaaa62 For This Useful Post: | ||
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2011-01-18
, 15:39
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Posts: 30 |
Thanked: 2 times |
Joined on Jul 2010
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#287
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i have tried the procedure that u just gave three times now but i still have the same memory style after the process..can u give a whole procedure for 10gb for installing plzz.
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2011-01-18
, 16:22
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Posts: 16 |
Thanked: 13 times |
Joined on Sep 2010
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#288
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This is now fixed, I have my N900 running with ext4 MyDocs and no problems. My booting issues were due to the awk madness that generates the fstab (why???) barfing on two partitions having the same type. I disabled the whole thing and went with a static fstab like most linux systems in this reality.
Originally Posted by lalomartins
For me the motivation wasn't size, as I was satisfied with the partitioning, but I wanted MyDocs in a filesystem that preserves permissions (especially fed up with every file having +x when copied out of there).
I formatted it as ext4, changed a pile of scripts (there are instructions on page 18 of this topic), and actually remembered to change the ownership of the whole filesystem to the user before I even tried to use the camera — meaning I never actually experienced camera issues.
Right now I'm happily using my n900 with an ext4 MyDocs, no problems yet.
One thing I have to note though, since my uid on my work/home computers is obviously not the same, I had to do something to be able to write to MyDocs when mounted with mass storage. Best way to do that was with POSIX ACLs; man setfacl is your friend.
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2011-01-18
, 16:45
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Posts: 345 |
Thanked: 117 times |
Joined on Jan 2010
@ uk
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#289
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You can repartition and create new partitions WITHOUT losing any data with gparted. I managed it so anyone can. Just create a bootable cd. I did this even though I have a windows pc. When the machine boots off the cd, plug n900 in and resize the partitions. Took about 15 minutes from start to finish for me. I created a new partition of 2gb for android then gave home an extra 2gb, stealing 4gb from MyDocs. I can find the links or make a howto or something if really needed, but I think if I can do it when I'm a real n00b then anyone can.
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2011-01-18
, 17:58
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Posts: 12 |
Thanked: 21 times |
Joined on Aug 2010
@ Alger
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#290
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Hello,
Here is a method to calculate the partition's table.
You must know that a bloc is 32k and it's better to use boundaries at 256k.
To calculate a size the rule is to change to KB and divide by 32.
Maybe an example will make it clearer :
To keep it simple, let's assume that you want at most 4 partitions.
1) Choose a partitionning layout
in my example
2) Get the highest block number of your device
This gives me 974974 (you can have a different number because i calculate the last used bloc)
3) Calculate the highest 256k bloc number
high256k=int((974974+1)/8)*8
we have a difference of 974974-974968=6 blocs that will be added to the last partition
4) calculate the 4th partition
add 6 blocs
we know the end bloc and the size :
let's calculate the beginning bloc :
that is also the end of the 3rd partition
5) calculate the 3rd partition (it's nearly copy and past from 4)
we know the end bloc and the size :
let's calculate the beginning bloc :
you guessed right ! that is also the end of the 2nd partition
6) calculate the 2nd partition (also the same as above)
we know the end bloc and the size :
let's calculate the beginning bloc :
And yes, that's the end of the 1st partition too
7) calculate the 1st partition (the easiest part)
we know the start and end blocs
let's calculate the size :
Congratulations ! You just finished the caclulation of your partitions !
One last thing :
the type of partition is c for fat, 82 for swap and 83 for ext3
using sfdisk you just have to give beginning, size and type for each partition
----------------
(*) : I haven't any issue beginning with 0, the default is 1, many says to begin with 64 (losing 2MB)
Here is a method to calculate the partition's table.
You must know that a bloc is 32k and it's better to use boundaries at 256k.
To calculate a size the rule is to change to KB and divide by 32.
Maybe an example will make it clearer :
To keep it simple, let's assume that you want at most 4 partitions.
1) Choose a partitionning layout
in my example
p1=remaining (21GB) as fat, p2=8GB as ext3, p3=512MB as swap, p4=128MB as ext3
Code:
sfdisk -l /dev/mmcblk0 | grep mmcblk | grep -v Empty | tail -n 1 | awk '{print $3;}'
3) Calculate the highest 256k bloc number
high256k=int((974974+1)/8)*8
974974+1=974975
974975/8=121871.88
121871*8=974968
4) calculate the 4th partition
size=128MB=128*1024KB=131072KB=131072/32 blocs=4096 blocs
4096+6=4102 blocs
end bloc=974974
size=4102
beginning=974974-4102=970872
5) calculate the 3rd partition (it's nearly copy and past from 4)
size=512MB=512*1024KB=524288KB=524288/32 blocs=16384 blocs
end bloc=970872
size=16384
beginning=970872-16384=954488
6) calculate the 2nd partition (also the same as above)
size=8GB=8*1024MB=8192MB=8192*1024KB=8388608KB=838 8608/32 blocs=262144 blocs
end bloc=954488
size=262144
beginning=954488-262144=692344
7) calculate the 1st partition (the easiest part)
we know the start and end blocs
end bloc=692344
beginning=0 (*)
size=692344-0 blocs=692344 blocs
One last thing :
the type of partition is c for fat, 82 for swap and 83 for ext3
using sfdisk you just have to give beginning, size and type for each partition
----------------
(*) : I haven't any issue beginning with 0, the default is 1, many says to begin with 64 (losing 2MB)
| The Following User Says Thank You to brahim98 For This Useful Post: | ||
BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.
~ $ sudo gainroot
Root shell enabled
BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.
/home/user # sfdisk -l /dev/mmcblk0
Disk /dev/mmcblk0: 977024 cylinders, 4 heads, 16 sectors/track
Units = cylinders of 32768 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System
/dev/mmcblk0p1 1 884864 884864 28315648 83 Linux
/dev/mmcblk0p2 884865 950400 65536 2097152 83 Linux
/dev/mmcblk0p3 950401 974976 24576 786432 82 Linux swap / Solaris
/dev/mmcblk0p4 0 - 0 0 0 Empty
/home/user # 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/mmcblk0p1 on /home type ext3 (rw,noatime,errors=continue,commit=1,data=writebac k)
/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/mmcblk1p1 on /media/mmc1 type vfat (rw,noauto,nodev,noexec,nosuid,noatime,nodiratime, utf8,uid=29999,shortname=mixed,dmask=000,fmask=013 3,rodir)
/home/user #