* [parisc-linux] Creating Ramdisks
@ 2000-01-25 23:46 willy
0 siblings, 0 replies; only message in thread
From: willy @ 2000-01-25 23:46 UTC (permalink / raw
To: parisc-linux
How to Create A Suitable Ramdisk.
several people have asked how to do it. So here you go:
You will require One (1) Linux machine and the root password for it.
--- begin ---
#!/bin/sh
FILE=/tmp/ramdisk.bin
MOUNT=/mnt/ramdisk
# (0) Ensure the mount point exists.
if [ ! -d $MOUNT ]; then
mkdir $MOUNT;
fi
# (1) Create a ramdisk of appropriate size.
dd if=/dev/zero of=$FILE bs=1024 count=400
# (2) Create a filesystem in it.
mke2fs $FILE
# (3) Mount it
mount -o loop $FILE $MOUNT
# (4) copy files into it.
echo Now copy your files into $MOUNT
bash
# (5) unmount
unmount $FILE
--- end ---
Ensure that you have /dev/console, /sbin/init, /dev/tty0 and a /proc
directory is probably also wise. It's probably easiest to copy them
from a ramdisk already available, but here's an ls -lR of one:
# ls -lR /mnt/cdrom2
/mnt/cdrom2:
total 15
drwxrwxrwx 2 root root 1024 Oct 18 13:23 dev
drwxrwxrwx 2 root root 12288 Aug 22 15:12 lost+found
drwxrwxr-x 2 root root 1024 Oct 19 12:21 proc
drwxrwxrwx 2 root root 1024 Jan 24 17:26 sbin
/mnt/cdrom2/dev:
total 0
crwxrwxrwx 1 root tty 5, 1 Oct 18 13:23 console
crwxrwxrwx 1 root tty 4, 0 Oct 18 13:23 tty0
crwxrwxrwx 1 root tty 4, 1 Oct 18 13:23 tty1
crwxrwxrwx 1 root tty 4, 2 Oct 18 13:23 tty2
crwxrwxrwx 1 root tty 4, 3 Oct 18 13:23 tty3
crwxrwxrwx 1 root tty 4, 4 Oct 18 13:23 tty4
crwxrwxrwx 1 root tty 4, 5 Oct 18 13:23 tty5
crwxrwxrwx 1 root tty 4, 6 Oct 18 13:23 tty6
crwxrwxrwx 1 root tty 4, 7 Oct 18 13:23 tty7
crwxrwxrwx 1 root tty 4, 8 Oct 18 13:23 tty8
crwxrwxrwx 1 root sys 7, 0 Oct 18 13:23 vcs0
crwxrwxrwx 1 root sys 7, 1 Oct 18 13:23 vcs1
crwxrwxrwx 1 root sys 7, 2 Oct 18 13:23 vcs2
crwxrwxrwx 1 root sys 7, 3 Oct 18 13:23 vcs3
crwxrwxrwx 1 root sys 7, 4 Oct 18 13:23 vcs4
crwxrwxrwx 1 root sys 7, 5 Oct 18 13:23 vcs5
crwxrwxrwx 1 root sys 7, 6 Oct 18 13:23 vcs6
crwxrwxrwx 1 root sys 7, 7 Oct 18 13:23 vcs7
crwxrwxrwx 1 root sys 7, 8 Oct 18 13:23 vcs8
crwxrwxrwx 1 root sys 7, 128 Oct 18 13:23 vcsa
crwxrwxrwx 1 root sys 7, 129 Oct 18 13:23 vcsa1
crwxrwxrwx 1 root sys 7, 130 Oct 18 13:23 vcsa2
crwxrwxrwx 1 root sys 7, 131 Oct 18 13:23 vcsa3
crwxrwxrwx 1 root sys 7, 132 Oct 18 13:23 vcsa4
crwxrwxrwx 1 root sys 7, 133 Oct 18 13:23 vcsa5
crwxrwxrwx 1 root sys 7, 134 Oct 18 13:23 vcsa6
crwxrwxrwx 1 root sys 7, 135 Oct 18 13:23 vcsa7
crwxrwxrwx 1 root sys 7, 136 Oct 18 13:23 vcsa8
/mnt/cdrom2/lost+found:
total 0
/mnt/cdrom2/proc:
total 0
/mnt/cdrom2/sbin:
total 1036
-rwxr-xr-x 1 willy guests 245760 Jan 18 02:46 ab
-rwxr-xr-x 1 willy guests 237568 Jan 18 02:46 hellow
-rwxr-xr-x 2 root root 283957 Jan 18 02:31 init
-rwxr-xr-x 2 root root 283957 Jan 18 02:31 sash
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2000-01-25 23:46 [parisc-linux] Creating Ramdisks willy
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