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gentoo 2005.1 on dell latitude x1
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gozmomm
n00b
n00b


Joined: 15 Aug 2005
Posts: 3

PostPosted: Tue Aug 16, 2005 12:26 am    Post subject: gentoo 2005.1 on dell latitude x1 Reply with quote

Hello,
im pretty dumb about linux and have a little question about installing gentoo 2005.1 on dell latitude x1 laptop.

http://gentoo-wiki.com/HARDWARE_Dell_Latitude_X1

>> Determing root device...
!! The root block device is unspecified or not detected.
Please specify a device to boot, or "shell" for a shell...
boot() :: shell


BusyBox v1.00 (2005.08.03-20:37+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

/bin/ash: can't access tty; job control turned off
/ # cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 ld: 00 Lun: 00
Vendor: TSSTcorp Model: CDRW/DVD TSL462C Rev: DE01
Type: CD-ROM ANSI SCSI revision: 02
/ # cat /proc/scsi/usb-storage/0
Host scsi0: usb-storage
Vendor: Dell USB Drive
Product: A04
Serial Number: None
Protocol: Transparent SCSI
Transport: Bulk
Quirks:
/ # cat /proc/sys/dev/cdrom/info | grep name
Drive name: sr0
/ # ls -l /dev/sr0
ls: /dev/sr0: No such file or directory
/ # cat /proc/devices | grep sr
11 sr
/ # mknod /dev/sr0 b 11 0
/ # ls -l /dev/sr0
brw-r--r-- 1 0 0 11, 0 Aug 16 00:18 /dev/sr0
/ # exit
!! The root block device is unspecified or not detected.
Please specify a device to boot, or "shell" for a shell...
boot() :: /dev/ram0
>> Mounting root...
mount: Mounting /dev/ram0 on /newroot failed: Invalid argument
!! Could not mount specified ROOT, try again
!! The root block device is unspecified or not detected.
Please specify a device to boot, or "shell" for a shell...
boot() :: shell



BusyBox v1.00 (2005.08.03-20:37+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

/bin/ash: can't access tty; job control turned off
/ # ls -l /dev/ram0
lrwxrwxrwx 1 0 0 4 Aug 16 00:03 /dev/ram0 -> rd/0
/ #

sorry for typos, didnt copy-paste but writed from one computer to another by hand. and sorry for my english:)
anyway anyone has idea how to get this installation cd to work with this powered USB device they call CD-ROM?
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henryzhou
Tux's lil' helper
Tux's lil' helper


Joined: 14 Aug 2005
Posts: 86

PostPosted: Tue Aug 16, 2005 1:47 am    Post subject: Reply with quote

Hi gozmomm,

Please read this topic https://forums.gentoo.org/viewtopic-t-369937.html

It gives us the way to boot livecd 2005.1 from external cd/dvd-rom

Quote:

Managed to get the 2005.1 minimal cd to boot on a USB CDROM with the following
process:

1. Boot with "doscsi scandelay debug" (note the 'debug')
2. At the debug prompt (NOT the emergency shell prompt):
# ls /dev/sr0
ls: /dev/sr0: No such file or directory
# cat /proc/sys/kernel/hotplug
/sbin/hotplug
# echo /sbin/udev > /proc/sys/kernel/hotplug
# cat /proc/sys/kernel/hotplug
/sbin/udev
3. unplug the cdrom then plug it back in.
4. At prompt again:
# ls /dev/sr0
/dev/sr0
# exit
5. Boot continues and finds livecd at /dev/sr0.

I've tried the same procedure with the the emergency shell, however it didn't work.

The important parts are the 'echo /sbin/udev > /proc/sys/kernel/hotplug' and the
replugging of the cdrom. The echo sets udev as the hotplug agent for the kernel
and the replug causes the kernel to send a new hotplug event to udev which in
turn sets up the missing device.

One way I think this can be fixed permenatly is to add the echo line to the
linuxrc right after /proc is mounted. I'm going to try and build my own version
of the livecd to test this.

Hope this helps!

G.
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gozmomm
n00b
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Joined: 15 Aug 2005
Posts: 3

PostPosted: Tue Aug 16, 2005 1:57 am    Post subject: Reply with quote

big thanks, worked for me!
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nixnut
Bodhisattva
Bodhisattva


Joined: 09 Apr 2004
Posts: 10974
Location: the dutch mountains

PostPosted: Tue Aug 16, 2005 6:51 pm    Post subject: Reply with quote

Moved from Installing Gentoo to Duplicate Threads.
See here: [url]https://forums.gentoo.org/viewtopic-t-369937.html [/url]
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