On my eeepc I have integrated memory card (SD etc etc) reader and before to delete windows I want have netbook whole, without multiboot operating system, so I thought to install a mini linux distro on SD for secure navigation on internet or recovery or for linux always at hand (I use my old laptop distro from external HD usually, and is not practical) or for low energy consumption. The installation that I do includes:
I'm using a SD with 2GB and I'm making test from another linux, linux distro for SD is debian squeeze.
fdisk -l show this
Disk /dev/sdc: 2014 MB, 2014838784 bytes 62 heads, 62 sectors/track, 1023 cylinders Units = cylinders of 3844 * 512 = 1968128 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x30d630d5 Device Boot Start End Blocks Id System /dev/sdc1 764 1024 499712 82 Linux swap / Solaris Partition 1 has different physical/logical beginnings (non-Linux?): phys=(182, 173, 56) logical=(763, 29, 15) Partition 1 has different physical/logical endings: phys=(244, 227, 47) logical=(1023, 28, 60) Partition 1 does not end on cylinder boundary. /dev/sdc2 1 764 1466368 83 Linux Partition 2 has different physical/logical beginnings (non-Linux?): phys=(0, 32, 33) logical=(0, 33, 3) Partition 2 has different physical/logical endings: phys=(182, 173, 55) logical=(763, 29, 14) Partition 2 does not end on cylinder boundary. Partition table entries are not in disk order
exec sometime hdparm -tT show this
/dev/sdc: Timing cached reads: 1268 MB in 2.00 seconds = 634.14 MB/sec Timing buffered disk reads: 26 MB in 3.24 seconds = 8.03 MB/sec /dev/sdc: Timing cached reads: 1196 MB in 2.00 seconds = 598.17 MB/sec Timing buffered disk reads: 26 MB in 3.20 seconds = 8.12 MB/sec
It's very slow
On SD card 2 GB can be little, I thought to create a ext4 filesystem on image on windows partition, I think it's possible. I can't do for now, but if I create a file with dd like
dd if=/dev/zero of=/home/dir/file.img bs=512 count=**SIZE**
and then I do mkfs.ext4 /home/dir/file.img and endly in /etc/fstab add somethins like
/home/dir/file.img /mnt/dir ext4 defaults 0 0
maybe to work
I tried latest knoppix on SD and is better way because:
On Linux Tips and Tricks some tips for SD backup and recovery