Re: [gentoo-user] restoring master boot record
One question, if anyone can help : in order to have a working system, I think I'ld need to rewrite the master boot record onto the new SSD. I use Lilo, which has a line 'boot=device-name': would it be enough to simply run Lilo, perhaps from System-Rescue ? Should I have a back-up copy of the present MBR to use if so, what is the correct command to copy it later put it in the proper place ? If I do find myself facing this problem one day, I may not have e-mail, so I'ld like to have the necessary info saved for when it's needed. From some old notes: To copy boot record with partition table; dd if=/dev/sda of=/boot/mbr_backup bs=512 count=1 To restore boot record without partition table; dd if=/boot/mbr_backup of=/dev/sda bs=446 count=1 So you can just write the MBR to a file, and either include the partition table (bs=512) or exclude it (bs=446).
Re: [gentoo-user] restoring master boot record
150112 Adam Carter wrote: I may need to rewrite the master boot record onto the new SSD. I use Lilo, which has a line 'boot=device-name': would it be enough to simply run Lilo, perhaps from System-Rescue ? Should I have a back-up copy of the present MBR to use if so, what is the correct command to copy it later put it in the proper place ? To copy boot record with partition table : 'dd if=/dev/sda of=/boot/mbr_backup bs=512 count=1' ; To restore boot record without partition table : 'dd if=/boot/mbr_backup of=/dev/sda bs=446 count=1' ; so you can just write the MBR to a file and either include the partition table (bs=512) or exclude it (bs=446). Thanks ! -- someone else who keeps careful notes : added to mine. -- ,, SUPPORT ___//___, Philip Webb ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto TRANSIT`-O--O---' purslowatchassdotutorontodotca
[gentoo-user] restoring master boot record
I'm trying to be prepared in case my SSD fails. If it did, I would buy a replacement use my sync'ed copy of system files to restore the Gentoo system without needing to re-install it. One question, if anyone can help : in order to have a working system, I think I'ld need to rewrite the master boot record onto the new SSD. I use Lilo, which has a line 'boot=device-name': would it be enough to simply run Lilo, perhaps from System-Rescue ? Should I have a back-up copy of the present MBR to use if so, what is the correct command to copy it later put it in the proper place ? If I do find myself facing this problem one day, I may not have e-mail, so I'ld like to have the necessary info saved for when it's needed. -- ,, SUPPORT ___//___, Philip Webb ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto TRANSIT`-O--O---' purslowatchassdotutorontodotca
