Re: [gentoo-user] Can't access disks after install
On Sun, 2006-07-02 at 20:22 +0200, Alan McKinnon wrote: On Sun, 2006-07-02 at 19:13 +0200, Mick wrote: On 02/07/06, Rumen Yotov [EMAIL PROTECTED] wrote: If your / fs is reiserfs then recompile your kernel with reiserfs in the kernel (not as a module) and see if it now finds your /. That's worth a try - it'll take an hour or three to get everything set up. But correct me if I'm wrong, I thought the whole point of using an initramfs was to be able to compile *everything* as a module, including the fs on / ? If not, that might explain why I've always had mixed results with genkernel... update: I unmerged and remerged genkernel last night and built a new kernel with reiser compiled in - it seems I was mistaken as to what can be a module and what can't be. At least this kernel boots now, with some minor issues that I can sort out later. I must have forgotten to emerge lvm2 onto the real system as I can't get to the lvm partitions and looking for vg* under ubuntu shows no such file... silly me. I now have a question about genkernel - I've always had mixed results with this. The docs and man pages aren't really clear about how it gets it's .config - it looks like the first time it's run it finds a standard .config in /usr/share/genkernel, copies that to /usr/src/linux/.config then runs make. Afterwards the .config gets saved in /etc/kernels for later re-use. Next time it's run it has to detect which version to use - does it look at what /usr/src/linux points to for this? And the --oldconfig option is confusing also. Normally make oldconfig uses a prior .config and prompts on the console for any options marked as NEW in the new source tree. But genkernel --oldconfig seems to do something else altogether. Can someone clear up these points? alan -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
On Mon, 2006-07-03 at 08:28 +0300, Rumen Yotov wrote: That's worth a try - it'll take an hour or three to get everything set up. But correct me if I'm wrong, I thought the whole point of using an initramfs was to be able to compile *everything* as a module, including the fs on / ? If not, that might explain why I've always had mixed results with genkernel... alan Hi, Certainly not *everything* but you could compile as modules some things which otherwise you won't be able to use as modules (root fs etc.). IIRC genkernel uses a 'default' config (equal to the one in LiveCD, if not wrong). The whole idea is to loadmount initramfs in memory so to have the required modules/lvm/raid things to start the real root-fs. i'm using genkernel but just for the 'auto' initrd/initramfs thing, otherwise using my custom kernel config with some 12-16 modules. I see that now. Here's what threw me (on Ubuntu): [EMAIL PROTECTED]:~$ cat /boot/ubuntu/config-2.6.15-25-386 | grep -i reiser CONFIG_REISERFS_FS=m # CONFIG_REISERFS_CHECK is not set # CONFIG_REISERFS_PROC_INFO is not set CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y CONFIG_REISERFS_FS_SECURITY=y Silly me, assuming that one distro is built the same way as another one :-) alan -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
Alan McKinnon wrote: up. But correct me if I'm wrong, I thought the whole point of using an initramfs was to be able to compile *everything* as a module, including the fs on / ? You're right, that's ONE of the points of using an initramfs. Another point would be, that you're able to put / on LVM/Software-RAID. Alexander Skwar -- What, after all, is a halo? It's only one more thing to keep clean. -- Christopher Fry -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
Rumen Yotov wrote: Alan McKinnon wrote: up. But correct me if I'm wrong, I thought the whole point of using an initramfs was to be able to compile *everything* as a module, including the fs on / ? If not, that might explain why I've always had mixed results with genkernel... Certainly not *everything* What *not*? IDE can be a module (if you use IDE), same for SCSI modules. Alexander Skwar -- What, after all, is a halo? It's only one more thing to keep clean. -- Christopher Fry -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
On Mon, 03 Jul 2006 12:33:27 +0200, Alexander Skwar wrote: You're right, that's ONE of the points of using an initramfs. Another point would be, that you're able to put / on LVM/Software-RAID. You don't need an initramfs to use Software RAID for /, as long as the necessary modules are built into the kernel. You do need one for LVM. -- Neil Bothwick When your pet bird sees you reading the newspaper, does he wonder why you're just sitting there, staring at carpeting? signature.asc Description: PGP signature
Re: [gentoo-user] Can't access disks after install
On Mon, 2006-07-03 at 12:21 +0100, Neil Bothwick wrote: You're right, that's ONE of the points of using an initramfs. Another point would be, that you're able to put / on LVM/Software-RAID. You don't need an initramfs to use Software RAID for /, as long as the necessary modules are built into the kernel. You do need one for LVM. Why is that? Is it the user-space tools (vgscan, vgchange, etc) needed to find the volumes at start time? alan -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
Neil Bothwick wrote: On Mon, 03 Jul 2006 12:33:27 +0200, Alexander Skwar wrote: You're right, that's ONE of the points of using an initramfs. Another point would be, that you're able to put / on LVM/Software-RAID. You don't need an initramfs to use Software RAID for /, as long as the necessary modules are built into the kernel. Thanks. Good to know! Alexander Skwar -- Zoe: Sir, I think you have a problem with your brain being missing. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
Alan McKinnon wrote: On Mon, 2006-07-03 at 12:21 +0100, Neil Bothwick wrote: You're right, that's ONE of the points of using an initramfs. Another point would be, that you're able to put / on LVM/Software-RAID. You don't need an initramfs to use Software RAID for /, as long as the necessary modules are built into the kernel. You do need one for LVM. Why is that? Is it the user-space tools (vgscan, vgchange, etc) needed to find the volumes at start time? Yes, exactly. As you just wrote, with LVM, you need to activate the VGs, find the PVs and so on. For this, user-space tools are required. Not so for Software RAID. According to Neil, the kernel can do all that's required without the help of user-space tools. Neil might be right in saying so - I'd suppose that he is right. Alexander Skwar -- Zoe: Sir, I think you have a problem with your brain being missing. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
On Mon, 03 Jul 2006 15:20:58 +0200, Alexander Skwar wrote: Not so for Software RAID. According to Neil, the kernel can do all that's required without the help of user-space tools. Neil might be right in saying so - I'd suppose that he is right. If I'm not right, it's a miracle that this box has been booting for the last two years :) As long as the partitions types are set to Linux raid autodetect (FD) and the kernel has the necessary options enabled, you don't need any software to activate the RAID. -- Neil Bothwick Remember, UNIX spelled backwards is XINU. signature.asc Description: PGP signature
Re: [gentoo-user] Can't access disks after install
Alan McKinnon wrote: Hi, Brand new install, and the kernel can't access the SATA disks. I don't have the bandwidth to d/l an entire install CD and I have an up to date distfiles locally so I used the latest install CD I have - 2005.1 Hardware: Dell Latitude D810 with 80G sata. / on /dev/sda7 (reiser) /boot on /dev/sda1 (ext2) ACCEPT_KEYWORDS=~x86, latest udev installed. /home, /usr, /opt, /var and distfiles on an lvm (all reiser) Install disk boots fine with full access to the disk. On boot the initramfs detects the hardware, but complains it can't find my / on /dev/sda7. Drop to a shell and the nodes are right there in /dev. The reiser module is not loaded, but it was configured as a module by genkernel. Where could I have made a mistake? At this point I don't really need a solution, more a pointer to the FM so I can R it :-) alan Hi, Quite null SATA experience but have you put dolvm2 in Grub's kernel boot line (for LVM2 boot support). Second thought/question - have you compiled support for your mobo in the kernel, plus SATA support? Your specific SATA chipset might not have been included in default genkernel config, so you have to customize it. HTH.Rumen smime.p7s Description: S/MIME Cryptographic Signature
Re: [gentoo-user] Can't access disks after install
On 02/07/06, Rumen Yotov [EMAIL PROTECTED] wrote: Alan McKinnon wrote: Hi, Brand new install, and the kernel can't access the SATA disks. I don't have the bandwidth to d/l an entire install CD and I have an up to date distfiles locally so I used the latest install CD I have - 2005.1 Hardware: Dell Latitude D810 with 80G sata. / on /dev/sda7 (reiser) /boot on /dev/sda1 (ext2) ACCEPT_KEYWORDS=~x86, latest udev installed. /home, /usr, /opt, /var and distfiles on an lvm (all reiser) Install disk boots fine with full access to the disk. On boot the initramfs detects the hardware, but complains it can't find my / on /dev/sda7. Drop to a shell and the nodes are right there in /dev. The reiser module is not loaded, but it was configured as a module by genkernel. If your / fs is reiserfs then recompile your kernel with reiserfs in the kernel (not as a module) and see if it now finds your /. -- Regards, Mick -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
On Sun, 2006-07-02 at 19:13 +0200, Mick wrote: On 02/07/06, Rumen Yotov [EMAIL PROTECTED] wrote: Alan McKinnon wrote: Hi, Brand new install, and the kernel can't access the SATA disks. I don't have the bandwidth to d/l an entire install CD and I have an up to date distfiles locally so I used the latest install CD I have - 2005.1 Hardware: Dell Latitude D810 with 80G sata. / on /dev/sda7 (reiser) /boot on /dev/sda1 (ext2) ACCEPT_KEYWORDS=~x86, latest udev installed. /home, /usr, /opt, /var and distfiles on an lvm (all reiser) Install disk boots fine with full access to the disk. On boot the initramfs detects the hardware, but complains it can't find my / on /dev/sda7. Drop to a shell and the nodes are right there in /dev. The reiser module is not loaded, but it was configured as a module by genkernel. If your / fs is reiserfs then recompile your kernel with reiserfs in the kernel (not as a module) and see if it now finds your /. That's worth a try - it'll take an hour or three to get everything set up. But correct me if I'm wrong, I thought the whole point of using an initramfs was to be able to compile *everything* as a module, including the fs on / ? If not, that might explain why I've always had mixed results with genkernel... alan -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Can't access disks after install
Alan McKinnon wrote: On Sun, 2006-07-02 at 19:13 +0200, Mick wrote: On 02/07/06, Rumen Yotov [EMAIL PROTECTED] wrote: Alan McKinnon wrote: Hi, Brand new install, and the kernel can't access the SATA disks. I don't have the bandwidth to d/l an entire install CD and I have an up to date distfiles locally so I used the latest install CD I have - 2005.1 Hardware: Dell Latitude D810 with 80G sata. / on /dev/sda7 (reiser) /boot on /dev/sda1 (ext2) ACCEPT_KEYWORDS=~x86, latest udev installed. /home, /usr, /opt, /var and distfiles on an lvm (all reiser) Install disk boots fine with full access to the disk. On boot the initramfs detects the hardware, but complains it can't find my / on /dev/sda7. Drop to a shell and the nodes are right there in /dev. The reiser module is not loaded, but it was configured as a module by genkernel. If your / fs is reiserfs then recompile your kernel with reiserfs in the kernel (not as a module) and see if it now finds your /. That's worth a try - it'll take an hour or three to get everything set up. But correct me if I'm wrong, I thought the whole point of using an initramfs was to be able to compile *everything* as a module, including the fs on / ? If not, that might explain why I've always had mixed results with genkernel... alan Hi, Certainly not *everything* but you could compile as modules some things which otherwise you won't be able to use as modules (root fs etc.). IIRC genkernel uses a 'default' config (equal to the one in LiveCD, if not wrong). The whole idea is to loadmount initramfs in memory so to have the required modules/lvm/raid things to start the real root-fs. i'm using genkernel but just for the 'auto' initrd/initramfs thing, otherwise using my custom kernel config with some 12-16 modules. HTH.Rumen smime.p7s Description: S/MIME Cryptographic Signature
