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add missing expand sd card for Raspberry Pi 2

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cedricve
2015-05-25 15:14:48 +02:00
parent 266a11ff7b
commit 85278c18fd
2 changed files with 222 additions and 2 deletions
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112
1.0.0/5_FAQ.md
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@@ -14,7 +14,7 @@ The FAQ, Frequently Asked Questions, page contains **technical solutions** for c
## How to expand SD card root partition
<a name="expand-sd-card-archlinux"></a>
### Arch Linux
### Arch Linux (Raspberry Pi A, B, B+)
After logging in you view the status of filesystem (the output can be different):
@@ -145,6 +145,116 @@ Check and it is done :-)
tmpfs 231M 0 231M 0% /tmp
/dev/mmcblk0p1 90M 24M 67M 27% /boot
### Arch Linux (Raspberry Pi 2
After logging in you view the status of filesystem (the output can be different):
[root@alarmpi ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 3.2G 2.8G 161M 95% /
devtmpfs 427M 0 427M 0% /dev
tmpfs 431M 0 431M 0% /dev/shm
tmpfs 431M 392K 431M 1% /run
tmpfs 431M 0 431M 0% /sys/fs/cgroup
tmpfs 431M 0 431M 0% /tmp
/dev/mmcblk0p1 100M 18M 83M 18% /boot
tmpfs 87M 0 87M 0% /run/user/0
Using the command fdisk will edit the filesystem /dev/mmcblk0:
[root@alarmpi ~]# fdisk /dev/mmcblk0
Welcome to fdisk (util-linux 2.23.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help):
List the information and delete partition 2:
Command (m for help): p
Disk /dev/mmcblk0: 7.2 GiB, 7746879488 bytes, 15130624 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
Disklabel type: dos
Disk identifier: 0x4bce3dec
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 2048 206847 204800 100M c W95 FAT32 (LBA)
/dev/mmcblk0p2 206848 7000000 6793153 3.2G 83 Linux
Command (m for help): d
Partition number (1,2,5, default 5): 2
Partition 2 has been deleted.
Command (m for help):
Create a new extended partition a logical volume:
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p
Partition number (2-4, default 2):
First sector (206848-15130623, default 206848):
Last sector, +sectors or +size{K,M,G,T,P} (206848-15130623, default 15130623):
Created a new partition 2 of type 'Linux' and of size 7.1 GiB.
Check whether top block starts in the same place as the original (start)
Command (m for help): p
Disk /dev/mmcblk0: 7.2 GiB, 7746879488 bytes, 15130624 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
Disklabel type: dos
Disk identifier: 0x4bce3dec
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 2048 206847 204800 100M c W95 FAT32 (LBA)
/dev/mmcblk0p2 206848 15130623 14923776 7.1G 83 Linux
Command (m for help):
If it starts again (in this case on 186368 p2 a 188416 p5) write changes and reboot.
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
[root@alarmpi ~]# reboot
After booting the system we online enlarge root partitions
[root@alarmpi ~]# resize2fs /dev/mmcblk0p2
resize2fs 1.42.12 (29-Aug-2014)
Filesystem at /dev/mmcblk0p2 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/mmcblk0p2 is now 1865472 (4k) blocks long.
Check and it is done :-)
[root@alarmpi ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 7.0G 2.8G 3.9G 43% /
devtmpfs 427M 0 427M 0% /dev
tmpfs 431M 0 431M 0% /dev/shm
tmpfs 431M 392K 431M 1% /run
tmpfs 431M 0 431M 0% /sys/fs/cgroup
tmpfs 431M 0 431M 0% /tmp
/dev/mmcblk0p1 100M 18M 83M 18% /boot
tmpfs 87M 0 87M 0% /run/user/0
<a name="backup-sd-card"></a>
## How to backup SD card

112
dev/5_FAQ.md
View File

@@ -14,7 +14,7 @@ The FAQ, Frequently Asked Questions, page contains **technical solutions** for c
## How to expand SD card root partition
<a name="expand-sd-card-archlinux"></a>
### Arch Linux
### Arch Linux (Raspberry Pi A, B, B+)
After logging in you view the status of filesystem (the output can be different):
@@ -145,6 +145,116 @@ Check and it is done :-)
tmpfs 231M 0 231M 0% /tmp
/dev/mmcblk0p1 90M 24M 67M 27% /boot
### Arch Linux (Raspberry Pi 2
After logging in you view the status of filesystem (the output can be different):
[root@alarmpi ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 3.2G 2.8G 161M 95% /
devtmpfs 427M 0 427M 0% /dev
tmpfs 431M 0 431M 0% /dev/shm
tmpfs 431M 392K 431M 1% /run
tmpfs 431M 0 431M 0% /sys/fs/cgroup
tmpfs 431M 0 431M 0% /tmp
/dev/mmcblk0p1 100M 18M 83M 18% /boot
tmpfs 87M 0 87M 0% /run/user/0
Using the command fdisk will edit the filesystem /dev/mmcblk0:
[root@alarmpi ~]# fdisk /dev/mmcblk0
Welcome to fdisk (util-linux 2.23.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help):
List the information and delete partition 2:
Command (m for help): p
Disk /dev/mmcblk0: 7.2 GiB, 7746879488 bytes, 15130624 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
Disklabel type: dos
Disk identifier: 0x4bce3dec
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 2048 206847 204800 100M c W95 FAT32 (LBA)
/dev/mmcblk0p2 206848 7000000 6793153 3.2G 83 Linux
Command (m for help): d
Partition number (1,2,5, default 5): 2
Partition 2 has been deleted.
Command (m for help):
Create a new extended partition a logical volume:
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p
Partition number (2-4, default 2):
First sector (206848-15130623, default 206848):
Last sector, +sectors or +size{K,M,G,T,P} (206848-15130623, default 15130623):
Created a new partition 2 of type 'Linux' and of size 7.1 GiB.
Check whether top block starts in the same place as the original (start)
Command (m for help): p
Disk /dev/mmcblk0: 7.2 GiB, 7746879488 bytes, 15130624 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
Disklabel type: dos
Disk identifier: 0x4bce3dec
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 2048 206847 204800 100M c W95 FAT32 (LBA)
/dev/mmcblk0p2 206848 15130623 14923776 7.1G 83 Linux
Command (m for help):
If it starts again (in this case on 186368 p2 a 188416 p5) write changes and reboot.
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
[root@alarmpi ~]# reboot
After booting the system we online enlarge root partitions
[root@alarmpi ~]# resize2fs /dev/mmcblk0p2
resize2fs 1.42.12 (29-Aug-2014)
Filesystem at /dev/mmcblk0p2 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/mmcblk0p2 is now 1865472 (4k) blocks long.
Check and it is done :-)
[root@alarmpi ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 7.0G 2.8G 3.9G 43% /
devtmpfs 427M 0 427M 0% /dev
tmpfs 431M 0 431M 0% /dev/shm
tmpfs 431M 392K 431M 1% /run
tmpfs 431M 0 431M 0% /sys/fs/cgroup
tmpfs 431M 0 431M 0% /tmp
/dev/mmcblk0p1 100M 18M 83M 18% /boot
tmpfs 87M 0 87M 0% /run/user/0
<a name="backup-sd-card"></a>
## How to backup SD card