Migration of LVM to new OS
HI, I'm back ;) I got tired of Ubuntu server LTS 8.04 and the way it's handling WPA. It seems to be impossible to configure WPA2 from command line. so of course I decided to use CRUX. I installed it, resolve some issues and now I need to migrate the LVM settings from Ubuntu. I saved the whole /etc/ directory so I've got the info about my LVM and of course I haven't played with partition tables and any other disk configuration. There is the different in the name convention (sdX in Ubuntu and hdX in CRUX). Is there anything I should be aware before starting migration? Wawrzek BTW. I successfully built ndiswrapper 1.55 with standard CRUX 2.6 kernel without any patches. -- Wawrzyniec Niewodniczański vel Wawrzek Larry or LarryN Linux User #177124 E-MAIL: wawrzek@gmail.com PhD in Quantum Chemistry WWW: http://wawrzek.name MSc in Molecular Engineering JID: wawrzek@jabber.wroc.pl
Hi, On 16:03 Mon 02 Nov , Wawrzyniec Niewodniczański wrote:
HI,
I'm back ;)
welcome back then :-)
I got tired of Ubuntu server LTS 8.04 and the way it's handling WPA. It seems to be impossible to configure WPA2 from command line. so of course I decided to use CRUX. I installed it, resolve some issues and now I need to migrate the LVM settings from Ubuntu.
I saved the whole /etc/ directory so I've got the info about my LVM and of course I haven't played with partition tables and any other disk configuration.
There is the different in the name convention (sdX in Ubuntu and hdX in CRUX). Is there anything I should be aware before starting migration?
This depends on how you configure your kernel. When using < > ATA/ATAPI/MFM/RLL support you will end up with hdX the new libata drivers will put sdX in your /dev tree, it's recommended to use this <*> Serial ATA (prod) and Parallel ATA (experimental) drivers Regards, Markus
Wawrzek
BTW. I successfully built ndiswrapper 1.55 with standard CRUX 2.6 kernel without any patches.
2009/11/2 Markus Messmer <markus.messmer@googlemail.com>: Hi,
There is the different in the name convention (sdX in Ubuntu and hdX in CRUX). Is there anything I should be aware before starting migration?
This depends on how you configure your kernel. When using < > ATA/ATAPI/MFM/RLL support you will end up with hdX the new libata drivers will put sdX in your /dev tree, it's recommended to use this <*> Serial ATA (prod) and Parallel ATA (experimental) drivers
Thanks for suggestion. It makes perfect sense. First time I overlooked ATA/PATA/SATA options. I didn't change them, so they were built as modules, and system couldn't intilize root partition. The box is in garage and I'm not living in California, so I don't reboot it too often and next time I marked both option for any case ;) Wawrzek -- Wawrzyniec Niewodniczański vel Wawrzek Larry or LarryN Linux User #177124 E-MAIL: wawrzek@gmail.com PhD in Quantum Chemistry WWW: http://wawrzek.name MSc in Molecular Engineering JID: wawrzek@jabber.wroc.pl
Hi Wawrzyniec Niewodniczański wrote:
2009/11/2 Markus Messmer <markus.messmer@googlemail.com>:
Hi,
There is the different in the name convention (sdX in Ubuntu and hdX in CRUX). Is there anything I should be aware before starting migration?
This depends on how you configure your kernel. When using < > ATA/ATAPI/MFM/RLL support you will end up with hdX the new libata drivers will put sdX in your /dev tree, it's recommended to use this <*> Serial ATA (prod) and Parallel ATA (experimental) drivers
Thanks for suggestion. It makes perfect sense. First time I overlooked ATA/PATA/SATA options. I didn't change them, so they were built as modules, and system couldn't intilize root partition. The box is in garage and I'm not living in California, so I don't reboot it too often and next time I marked both option for any case ;)
Wawrzek
In any case the filter = line in lvm.conf is the only thing you may need to edit if your PV disks are hdX instead of sdX, but as suggested use libata. LVM will scan any devices allowed in the filter for PV volumes. Regards, Danny Rawlins
2009/11/2 Markus Messmer <markus.messmer@googlemail.com>: Hi, [...]
There is the different in the name convention (sdX in Ubuntu and hdX in CRUX). Is there anything I should be aware before starting migration? [...] <*> Serial ATA (prod) and Parallel ATA (experimental) drivers
I did as suggested, but it lead to small problem. I cannot boot the new kernel. The lilo doesn't understand line "root=/dev/sdb1" when run from system with the old kernel. So i tried using uuid. It also didn't help. image=/boot/vmlinuz label=CRUX root=/dev/hdb1 append="root=/dev/disk/by-uuid/6274b1e0-f026-496c-af64-d0d19b39607a" read-only # append="quiet" I thought about grub, but because of some reason (I guess BIOS problem, as it takes ages to start the box) it didn't want to install into the MBR. Do you have any suggestion how move to the kernel with "SATA only support"? Wawrzek -- Wawrzyniec Niewodniczański vel Wawrzek Larry or LarryN Linux User #177124 E-MAIL: wawrzek@gmail.com PhD in Quantum Chemistry WWW: http://wawrzek.name MSc in Molecular Engineering JID: wawrzek@jabber.wroc.pl
Wawrzyniec Niewodniczański wrote:
2009/11/2 Markus Messmer <markus.messmer@googlemail.com>: Hi, [...]
There is the different in the name convention (sdX in Ubuntu and hdX in CRUX). Is there anything I should be aware before starting migration?
[...]
<*> Serial ATA (prod) and Parallel ATA (experimental) drivers
I did as suggested, but it lead to small problem. I cannot boot the new kernel.
The lilo doesn't understand line "root=/dev/sdb1" when run from system with the old kernel.
So i tried using uuid. It also didn't help.
image=/boot/vmlinuz label=CRUX root=/dev/hdb1 append="root=/dev/disk/by-uuid/6274b1e0-f026-496c-af64-d0d19b39607a" read-only # append="quiet"
I thought about grub, but because of some reason (I guess BIOS problem, as it takes ages to start the box) it didn't want to install into the MBR.
Do you have any suggestion how move to the kernel with "SATA only support"?
Wawrzek
You will want to use in lilo.conf lba32 install=text boot=/dev/sdb append="quiet" default=crux image=/boot/vmlinuz label=crux root=/dev/sdb1 read-only Then to install the boot loader while your in old system: lilo -M /dev/sdb As after rebooting to to use new libata the node will be sdb instead of hdb, else you'll have a hard time trying to get it to find hdb when it's listed as sdb. Regards, Danny Rawlins
2009/11/5 Danny Rawlins <d.rawlins@datafast.net.au>: Hi, [...]
Then to install the boot loader while your in old system:
lilo -M /dev/sdb
I think it won't work, as the /dev/sdb is not present in 'old system'.
As after rebooting to to use new libata the node will be sdb instead of hdb, else you'll have a hard time trying to get it to find hdb when it's listed as sdb.
You right ;) But the problem is that it work in both direction. I've already tried in the to add "root=/dev/sdb1" in 'old system' and lilo complained that /dev/sdb1 didn't exist. Of course I could create a symlink or change some udev rules, but the boot time of the machine does not encourage to much 'blind tests'. I'll try chrooting with parameter from CD as suggested in other post. Wawrzek -- Wawrzyniec Niewodniczański vel Wawrzek Larry or LarryN Linux User #177124 E-MAIL: wawrzek@gmail.com PhD in Quantum Chemistry WWW: http://wawrzek.name MSc in Molecular Engineering JID: wawrzek@jabber.wroc.pl
Hi, I like it. After booting CRUX sata CDROM cannot be found. :) Come back to fight. Wawrzek -- Wawrzyniec Niewodniczański vel Wawrzek Larry or LarryN Linux User #177124 E-MAIL: wawrzek@gmail.com PhD in Quantum Chemistry WWW: http://wawrzek.name MSc in Molecular Engineering JID: wawrzek@jabber.wroc.pl
On 23:03 Wed 04 Nov , Wawrzyniec Niewodniczański wrote:
2009/11/2 Markus Messmer <markus.messmer@googlemail.com>: Hi, [...]
There is the different in the name convention (sdX in Ubuntu and hdX in CRUX). Is there anything I should be aware before starting migration? [...] <*> Serial ATA (prod) and Parallel ATA (experimental) drivers
I did as suggested, but it lead to small problem. I cannot boot the new kernel.
The lilo doesn't understand line "root=/dev/sdb1" when run from system with the old kernel.
Do you have any suggestion how move to the kernel with "SATA only support"?
boot the CRUX install CD with bootparameter libata, chroot into your install and run lilo Regards Markus
participants (3)
-
Danny Rawlins -
Markus Messmer -
Wawrzyniec Niewodniczański