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Topic: Storing files on USB

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takowl

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Joined: April 2008

Posted: April 10 2008,19:14

Quote (Juanito @ April 10 2008,11:51)

The current "install to usb" menu in dsl makes two partitions as stated previously, but you can manually make a single fat/fat32 partition and boot using syslinux or a single ext2 partition and boot using extlinux and no doubt (I haven't tried) you could also use grub to boot either of these partitions.

Thanks, Juanito.

I'm afraid I didn't quite explain properly--I already have a single (1 GiB, FAT32) partition on my USB stick, with dsl-embedded booting from it. What I would like to do is to give (i.e. chown) a folder within the memory stick (mounted as /cdrom) to user dsl (i.e. the default user in dsl), so that I can write to it without becoming root. When I try this within dsl, it says that I do not have permission, even if I try to do it as root.

^thehatsrule^ Offline

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Posted: April 10 2008,20:52

Quote (takowl @ April 10 2008,15:14)

I'm afraid I didn't quite explain properly--I already have a single (1 GiB, FAT32) partition on my USB stick, with dsl-embedded booting from it. What I would like to do is to give (i.e. chown) a folder within the memory stick (mounted as /cdrom) to user dsl (i.e. the default user in dsl), so that I can write to it without becoming root. When I try this within dsl, it says that I do not have permission, even if I try to do it as root.

That's probably mounted as RO. Check `mount`

What's your boot parameters? You could try adding the "frugal" cheatcode or maybe remounting the partition as RW.

Juanito

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Posted: April 11 2008,04:10

This allows me to boot dsl from a 1GB usb stick formatted as a single ext2 partition:

Quote

[extlinux.conf]
DEFAULT linux24
APPEND ramdisk_size=100000 init=/etc/init lang=us vga=773 initrd=minirt24.gz nomce noapic quiet frugal toram syslog dma acpid restore=sda1 BOOT_IMAGE=knoppix
TIMEOUT 300

Folders as follows:

Code Sample

$ ls -l /mnt/sdc1
dr-xr-xr-x 2 root root 4096 Jul 20 2007 KNOPPIX
drwxr-xr-x 3 dsl staff 4096 Feb 16 03:19 backup
-rwxr-xr-x 1 root root 1286928 Apr 11 01:24 backup.tar.gz
-rwxr-xr-x 1 root root 2048 Jul 20 2007 boot.cat
-rwxr-xr-x 1 root root 123 Jul 20 2007 boot.msg
drwxr-xr-x 4 dsl staff 4096 Jul 21 2007 build
drwxr-xr-x 6 dsl staff 4096 Apr 11 01:19 docs
drwxr-xr-x 3 dsl staff 4096 Sep 28 2007 drivers
-rw-r--r-- 1 root root 2611 Feb 16 03:50 extlinux.conf
-r--r--r-- 1 root root 10072 Jul 20 2007 extlinux.sys
-rwxr-xr-x 1 root root 1592 Jul 20 2007 f2
-rwxr-xr-x 1 root root 1595 Jul 20 2007 f3
-rwxr-xr-x 1 root root 256 Jul 20 2007 german.kbd
-rwxr-xr-x 1 root root 1005209 Sep 17 2007 linux24
-rwxr-xr-x 1 root root 33780 Jul 20 2007 logo.16
drwx------ 2 root root 16384 Jul 20 2007 lost+found
-rwxr-xr-x 1 root root 856748 Feb 16 03:50 minirt24.gz
drwxr-xr-x 3 dsl staff 4096 Apr 9 18:50 mydsl
drwxr-xr-x 13 dsl staff 4096 Mar 27 19:27 source
drwxr-xr-x 3 dsl staff 4096 Apr 5 09:47 tmp

roberts

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Posted: April 12 2008,03:23

Not being a windows guy, does fat32 even support multiple permissions? Isn't that why there is/was UMSDOS and UVFAT?

If your requirement dictates a single partiton then I would suggest to use Juanito's method.

takowl

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Joined: April 2008

Posted: May 04 2008,23:11

Sorry I've not replied for a while--been busy with one thing and another.

It is possible to write to the mount--I can do so as superuser, and I have verified that the data is still there. I would essentially like to be able to do the same thing without logging in as root.

My preference is to make use of /cdrom, as I know it's consistent (regardless of how dsl is booted or on what system), and it's already formatted correctly for my purposes. If that's impossible, then fair enough...but I can't logically see why it would be impossible.

15 replies since April 09 2008,13:26

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