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shin938
n00b
Joined: 10 Feb 2012
Posts: 20
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 Posted: Fri Feb 10, 2012 8:21 pm Post subject: (SOLVED)grub could not find the root device in . |
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Hi
Its my first time gentoo installation, followed the hadbook and after finally completing when I try to boot I get this message:
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mount: mounting /dev/sda4 on /newroot failed: No such device
could not find the root device in .
please specify another device...
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I tried installing to /dev/sda4.
used the gentoo minimal cd and stage3 tarball.
compiled the kernel with genkernel all, didn't do any changes.
my machine is a lenovo T520, its a multi boot hard disk, i got mint and debian testing working in that machine.
this is my hard drive:
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Device Boot Start End Blocks Id System
/dev/sda1 * 2048 3071999 1534976 7 HPFS/NTFS/exFAT (windows boot)
/dev/sda2 3072000 149872639 73400320 7 HPFS/NTFS/exFAT (windows )
/dev/sda3 149876734 913928191 382025729 5 Extended
/dev/sda4 913928192 976773119 31422464 83 Linux (gentoo)
/dev/sda5 149876736 223275007 36699136 83 Linux (mint)
/dev/sda6 223277056 296677375 36700160 83 Linux (mint home)
/dev/sda7 296679424 370079743 36700160 83 Linux (debian)
/dev/sda8 370081792 443482111 36700160 83 Linux (debian home)
/dev/sda9 443484160 840527871 198521856 83 Linux (devel)
/dev/sda10 840529920 888762367 24116224 83 Linux (enc)
/dev/sda11 888764416 913928191 12581888 82 Linux swap / Solaris
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lspci
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00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08)
0d:00.3 FireWire (IEEE 1394): Ricoh Co Ltd FireWire Host Controller (rev 04)
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fstab
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/dev/sda4 / ext4 default,noatime 1 1
/dev/sda11 none swap sw 0 0
/dev/cdrom /mnt/cdrom auto noauto,user 0 0
proc /proc proc defaults 0 0
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
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I installed grub to /dev/sda4 and added it to grub2 that is installed to the mbr trough mint
I guess there's somethig wrong in my grub.conf, I tried root=/dev/sda4 ,root=/dev/ram0 , root=(hd0,3) , nothing helps.
grub.conf
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default 0
timeout 30
splashimage=(hd0,3)/boot/grub/splash.xpm.gz
title Gentoo Linux 3.2.1
root (hd0,3)
kernel /boot/kernel-genkernel-x86_64-3.2.1-gentoo-r2 real_root=/dev/sda4 rootfstype=etx4 video=uvesafb:mtrr:3,ywrap,1024x768-32@85
initrd /boot/initramfs-genkernel-x86_64-3.2.1-gentoo-r2
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Thanks.
Last edited by shin938 on Sun Feb 12, 2012 2:19 pm; edited 1 time in total |
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Bones McCracker
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Joined: 14 Mar 2006
Posts: 1611
Location: U.S.A.
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| Posted: Sat Feb 11, 2012 6:54 am Post subject: |
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When you say you "installed grub to /dev/sda4 and added it to grub2", what do you mean by "added it to grub2"? Are you trying to chain-load grub from grub2?
It would probably be easier just to use one bootloader. To go that route, you didn't need to install grub (per the handbook) because you already have a bootloader installed. You probably need to boot into Mint and make sure the grub configuration contains the correct information in an option to boot Gentoo. Then, if grub2 requires you to run something to "update grub" with that configuration, do it. Then boot into Gentoo, and you can probably emerge --unmerge grub.
If you actually want to boot from the grub you installed into sda4, then you either need to make that partition bootable and tell your bios to boot from it (i.e. in your bios "setup"), or you would need to chain-load it from your grub2 setup (and I don't know how that is done).
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| patrix_neo wrote: | The human thought: I cannot win.
The ratbrain in me : I can only go forward and that's it. |
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mackal
Tux's lil' helper
Joined: 04 Aug 2011
Posts: 92
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| Posted: Sat Feb 11, 2012 7:57 am Post subject: |
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| I had a similar problem, turned out I forgot to build all my SATA drivers (I had to build 3 of them IIRC, one for SATA II, SATA III, and another) in, could only see the primary partitions and since I dual boot my root was an extended partition so it failed to load it. |
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shin938
n00b
Joined: 10 Feb 2012
Posts: 20
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| Posted: Sat Feb 11, 2012 3:43 pm Post subject: |
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Thank you for the answers.
what I did, I installed GAG to the mbr, GAG always worked perfect for me.
reinstalled mint's grub2 to its root partition. and booted with GAG, now I can boot all other os's and I can even see the grub menu in gentoo that wasn't showing when I chained it from grub2.
I think what was wrong in my grub.conf is this argument : rootfstype=etx4 , I think its not necessary with initramfs.
so now I can boot into gentoo.
This is my grub.conf now.
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default 0
timeout 30
splashimage=(hd0,3)/boot/grub/splash.xpm.gz
title Gentoo Linux 3.2.1
root (hd0,3)
kernel /boot/kernel-genkernel-x86_64-3.2.1-gentoo-r2 real_root=/dev/sda4
initrd /boot/initramfs-genkernel-x86_64-3.2.1-gentoo-r2
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So I'm happy, I have my first working gentoo installation. 
but now I can't get network to work, I could with the live cd, I rad a lot about issues with new kernels and intel network card and the e1000e driver, but couldn't fix it. the fact that the live cd could get a network connection makes me think its something in my installation.
on boot I sometimes see a message like:
| Code: | | reject NAK via 191.168.1.1.. |
this is the output from /etc/init.d/net.eth0 start:
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dhcpcd[17384]: version 5.2.12 starting
* Bringing up interface eth0
* dhcp ...
* Running dhcpcd ... [ ok ]
dhcpcd[17384]: eth0: waiting for carrier
dhcpcd[17384]: eth0: carrier acquired
dhcpcd[17384]: eth0: rebinding lease of 192.168.1.100
dhcpcd[17384]: eth0: acknowledged 192.168.1.100 from 192.168.1.1 `�'
dhcpcd[17384]: eth0: checking for 192.168.1.100
dhcpcd[17384]: eth0: leased 192.168.1.100 for 7200 seconds
dhcpcd[17400]: eth0: eth0: MTU set to 576
dhcpcd[17384]: forked to background, child pid 17416
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but still after that I have no connection and ifconfig reports no ip address.
I have this in /etc/conf.d/net
and this is my /etc/dhcpcd.conf
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hostname
#clientid shalom!gentoo
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
option ntp_servers
option interface_mtu
require dhcp_server_identifier
nohook lookup-hostname
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I hope someone could help fixing it so I really have a working gentoo.
Thank you |
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Bones McCracker
Veteran
Joined: 14 Mar 2006
Posts: 1611
Location: U.S.A.
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| Posted: Sun Feb 12, 2012 12:13 am Post subject: |
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That's a separate issue I can't help with. Put "solved" in the subject line of your first post here, and start a new thread in the "Installing Gentoo" forum with an appropriate subject line (e.g. "need help with network / dhcpcd"). Someone more familiar with that issue will respond.
_________________
| patrix_neo wrote: | The human thought: I cannot win.
The ratbrain in me : I can only go forward and that's it. |
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Installing Gentoo
