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Booting Gentoo CD -- Something Seems To Fail...
bamccaig
Member #7,536
July 2006
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When I try to boot the Gentoo 2007.0 Minimal CD/InstallCD (amd64) (on my makeshift "server" desktop machine) it prompts me for a device to boot... :-/ YOU! Boot you! :-/ Output follows (three lines of dots signify irrelevant lines/blocks whose output weren't recorded):

.
.
.
>> No bootable medium found. Waiting for new devices...
!! Could not find CD to boot, something else needed!
>> Loading keymaps
.
.
.
>> Determining root device...
!! The root block device is unspecified or not detected.
    Please specify a device to boot, or "shell" for a shell...
boot() :: 

The >> and !! are colored yellow, red, green, green, and red, respectively. Perhaps I should note that the CD image was written to a DVD-RW. I'm not sure if that would matter, but in case it will now you know.

Does anybody know what the problem might be or what I need to do at this point? :-/

/offtopic

Gentoo Linux Documentation -- Gentoo Linux AMD64 Handbook said:

Note: The CD will check for "no*" options before "do*" options, so that you can override any option in the exact order you specify.

- Source
Does that make sense...? ??? It seems that if it checks for "no*" options before "do*" options then it wouldn't specifically allow you to override options in the order you specify, rather, "do*" options would override "no*" options regardless of order. At least, that's how I interpret it. :-/

ReyBrujo
Moderator
January 2001
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No idea about why it does not boot. As for the permission, the booting process does exactly the opposite Windows security: first applies the negative rules, and then the positive ones. So, if you have a rule that says "Do not allow anyone to log here" and then a rule that says "Allow bamccaig to log in", it will first turn off all the login access to all the users, and then enable yours. Under Windows, denial options have higher precedence and are absolute, so it would first disable user logins and then dismiss the second rule (because it contradicts the first rule, and since the first rule is a denial it takes precedence).

In this case, it parses in order too. So, a "nologin - login bamccaig - noremotelogin - remotelogin bamccaig" would first turn off all logins, then turn off all remote login, then enable local login for you, then enable remote login for you, just like you say. Unless the boot process picks the first no rule and then searches for the rules that override it, then takes the next no rule and then the ones that override it. However, I guess it is the former.

--
RB
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bamccaig
Member #7,536
July 2006
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ReyBrujo said:

As for the permission, the booting process does exactly the opposite Windows security: first applies the negative rules, and then the positive ones. So, if you have a rule that says "Do not allow anyone to log here" and then a rule that says "Allow bamccaig to log in", it will first turn off all the login access to all the users, and then enable yours. Under Windows, denial options have higher precedence and are absolute, so it would first disable user logins and then dismiss the second rule (because it contradicts the first rule, and since the first rule is a denial it takes precedence).

Perhaps I should clarify... :P The "no*" and "do*" options are kernel options passed to configure the booted environment. Example options are dopcmcia and nodhcp. Sorry. :-X

Thomas Fjellstrom
Member #476
June 2000
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bamccaig: SATA DVD?

If so, try a PATA disk drive if you can, or see if theres a "compatible" or "legacy" mode in your bios for your SATA controller. Or if its already set to that, try AHCI instead.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
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ReyBrujo
Moderator
January 2001
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Oh, I just used some simple examples. Thankfully I never had to mess with them (other than once when I recompiled the kernel and left it unbootable, and had to choose one by hand because I had lilo and not grub).

--
RB
光子「あたしただ…奪う側に回ろうと思っただけよ」
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bamccaig
Member #7,536
July 2006
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Does anybody have an opinion on which version of Gentoo I should install; 2007.0 or 2008.0_beta2? :-/ Is there really a difference?

Thomas Fjellstrom said:

If so, try a PATA disk drive if you can, or see if theres a "compatible" or "legacy" mode in your bios for your SATA controller. Or if its already set to that, try AHCI instead.

OK, I guess that makes sense. I don't really want to operate if I can avoid it so I'll try a compatibility/legacy mode. Is there a reason the CD wouldn't come with support for SATA DVD drives? :-/

Thomas Fjellstrom
Member #476
June 2000
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Quote:

Is there a reason the CD wouldn't come with support for SATA DVD drives?

Linux supports AHCI SATA drives, and a few non AHCI SATA controllers, so it should just work. If its in non AHCI mode, its possible the device isn't supported. If its actually a PATA drive on a crappy new secondary PATA/eSATA chip, theres also a chance its not supported (mine wasn't in 2.6.18~).

All I can suggest is toggling the mode. If it doesn't support AHCI mode, like my board, (because asus SUCKS balls, ICH9 supports it just fine, but they disable it for non RAID boards), you likely have an ICHx chipset, which is supported under linux in legasy mode just fine. The last possibility is that gentoo forgot to include a given driver on the livecd. It happens.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

bamccaig
Member #7,536
July 2006
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Thomas Fjellstrom
Member #476
June 2000
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Quote:

This mainboard is NOT supported by the Gentoo 2007.0 CDs (as of 25/08/2007). The SATA chipset is not supported by the 2007 Gentoo Livecd.

So you want the "Small Gentoo Custom livecd", or the 2008 livecd. Or possibly the latest 2007.x.. usually theres at least 2... aka: 200x.0, 200x.1 etc.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

bamccaig
Member #7,536
July 2006
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Thomas Fjellstrom said:

So you want the "Small Gentoo Custom livecd", or the 2008 livecd. Or possibly the latest 2007.x.. usually theres at least 2... aka: 200x.0, 200x.1 etc.

Does it need to be the LiveCD? :-/

Thomas Fjellstrom
Member #476
June 2000
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Quote:

Does it need to be the LiveCD?

You have to boot something. The non livecds aren't bootable afaik.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

bamccaig
Member #7,536
July 2006
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Thomas Fjellstrom said:

You have to boot something. The non livecds aren't bootable afaik.

The minimal CD is what I'm booting Linux off of now... :-/ It just fails for whatever reason (presumably, no SATA DVD support). :-/ I think you're losing me... Why wouldn't the minimal/install CDs be bootable?

Thomas Fjellstrom
Member #476
June 2000
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Quote:

The minimal CD is what I'm booting Linux off of now...

When I used gentoo, the minimal CD was called a livecd. And it technically is, it just doesn't setup X like most other livecds.

Quote:

Why wouldn't the minimal/install CDs be bootable?

The extra package disks aren't bootable. Theres only two general kinds of gentoo disks, livecds, and package disks.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

OICW
Member #4,069
November 2003
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The Gentoo CD labeled "minimal" must be bootable.

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BAF
Member #2,981
December 2002
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Don't get the minimal CD, IIRC it doesn't have all the drivers available on the full one.

le_y_mistar
Member #8,251
January 2007
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why dont you just install gentoo in a vm? that would ease the curve

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bamccaig
Member #7,536
July 2006
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The Gentoo 2008.0_beta2 Minimal CD/InstallCD (amd64) seems to boot fine. The interface for selecting a kernel and passing options appears different from the previous version and handbook, but hopefully not so different that I have trouble with it. :) I'll give it a try tonight.

le_y_mistar said:

why dont you just install gentoo in a vm? that would ease the curve

Not a terrible idea. At least it would save me the trouble of transferring my monitor, keyboard, and mouse cables until I actually had completed a successful installation, but it won't really help with the hardware snags. Does anybody know of a free Windows VM that allows you to install fully functional Linux?

Thomas Fjellstrom
Member #476
June 2000
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Quote:

Does anybody know of a free Windows VM that allows you to install fully functional Linux?

VirtualBox, and VMWare Server.

I find VBox is faster.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

bamccaig
Member #7,536
July 2006
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Thomas Fjellstrom
Member #476
June 2000
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Quote:

And it's open source?! :o Hurray! :D

Its both. The Free, but non opensource version has support for USB passthrough and probably a couple other nice features that the OSS version lacks.

Also, VBox (imo) is a much better desktop oriented virtual machine app, where as VMWare server does a better job as a server.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

BAF
Member #2,981
December 2002
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VMWare Server is laggy and sucks. VirtualPC works fine with Linux too, even though they don't say it.

Thomas Fjellstrom
Member #476
June 2000
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Quote:

VMWare Server is laggy and sucks.

Works fine for servers :) I'd prefer ESX, but I can't afford that :( So right now the wiki and svn servers I host all run via vmware (xen + nfs-kernel-server == crashie).

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

Matthew Leverton
Supreme Loser
January 1999
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VirtualBox runs Linux guest operating systems much better than VirtualPC does.

bamccaig
Member #7,536
July 2006
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Is it possible to use a virtual hardware RAID configuration in VirtualBox or will I have to use software RAID? Will software RAID have any problems working from within VirtualBox? Since I neglected to get a RAID controller for my makeshift server and don't want to spend more money on it until I get some value from it, I'm going to be stuck with software RAID for now, but it would be good to learn how to set both up if possible.

Thomas Fjellstrom
Member #476
June 2000
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You should beable to use physical disks (partitions or LVM volumes) as VirtualBox images, so existing raid on the host could easily be used in guests.

I'd probably go with plain old .vdi images on a raid array on the host though. Guests then won't need to mess with raid internally.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
"The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don't agree" -- https://twitter.com/neiltyson/status/592870205409353730

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