I believe that when I upgrade grub I am supposed to re-run it. I would like to keep the same configuration I have know but am not sure if I installed grub in the MBR (I dual boot windows since it is often needed when calling Dell Support).
I believe that I do have grub in the mbr, but wish to confirm it so executed an od to confirm. Here is my disk layout (a one disk laptop) ajglap ~ # fdisk -l Disk /dev/sda: 100.0 GB, 100030242816 bytes 255 heads, 63 sectors/track, 12161 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x08000000 Device Boot Start End Blocks Id System /dev/sda1 1 6 48163+ de Dell Utility /dev/sda2 * 7 1963 15716352 7 HPFS/NTFS /dev/sda3 1963 1975 98683+ 83 Linux /dev/sda4 1976 12161 81819045 5 Extended /dev/sda5 1976 2098 987966 82 Linux swap / Solaris /dev/sda6 2099 4531 19543041 83 Linux /dev/sda7 4532 5991 11727418+ 83 Linux /dev/sda8 5992 8424 19543041 83 Linux /dev/sda9 8425 10857 19543041 83 Linux ajglap ~ # Here is an od of the mbr ajglap ~ # dd if=/dev/sda ibs=512 count=1 | od -c --address-radix=d 1+0 records in 1+0 records out 0000000 353 H 220 320 274 \0 | 216 300 216 330 276 \0 | 277 \0 0000016 006 271 \0 002 374 363 244 P h 034 006 313 373 271 004 \0 0000032 275 276 \a 200 ~ \0 \0 | \v 017 205 020 001 203 305 020 0000048 342 361 315 030 210 V \0 U 306 F 021 005 306 F 003 002 512 bytes (512 B) copied, 1.8159e-05 s, 28.2 MB/s 0000064 377 \0 \0 001 \0 \0 \0 \0 002 372 220 220 366 302 200 0000080 u 002 262 200 352 Y | \0 \0 1 300 216 330 216 320 274 0000096 \0 373 240 @ | < 377 t 002 210 302 R 276 177 } 0000112 350 4 001 366 302 200 t T 264 A 273 252 U 315 023 Z 0000128 R r I 201 373 U 252 u C 240 A | 204 300 u 005 0000144 203 341 001 t 7 f 213 L 020 276 005 | 306 D 377 001 0000160 f 213 036 D | 307 004 020 \0 307 D 002 001 \0 f 211 0000176 \ \b 307 D 006 \0 p f 1 300 211 D 004 f 211 D 0000192 \f 264 B 315 023 r 005 273 \0 p 353 } 264 \b 315 023 0000208 s \n 366 302 200 017 204 352 \0 351 215 \0 276 005 | 306 0000224 D 377 \0 f 1 300 210 360 @ f 211 D 004 1 322 210 0000240 312 301 342 002 210 350 210 364 @ 211 D \b 1 300 210 320 0000256 300 350 002 f 211 004 f 241 D | f 1 322 f 367 4 0000272 210 T \n f 1 322 f 367 t 004 210 T \v 211 D \f 0000288 ; D \b } < 212 T \r 300 342 006 212 L \n 376 301 0000304 \b 321 212 l \f Z 212 t \v 273 \0 p 216 303 1 333 0000320 270 001 002 315 023 r * 214 303 216 006 H | ` 036 271 0000336 \0 001 216 333 1 366 1 377 374 363 245 037 a 377 & B 0000352 | 276 205 } 350 @ \0 353 016 276 212 } 350 8 \0 353 0000368 006 276 224 } 350 0 \0 276 231 } 350 * \0 353 376 G 0000384 R U B \0 G e o m \0 H a r d D 0000400 i s k \0 R e a d \0 E r r o r \0 0000416 273 001 \0 264 016 315 020 254 < \0 u 364 303 \0 \0 \0 0000432 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \b \0 \0 \0 001 0000448 001 \0 336 376 ? 005 ? \0 \0 \0 G x 001 \0 200 036 0000464 031 006 \a 376 377 377 \0 200 001 \0 \0 240 337 001 \0 376 0000480 377 377 203 376 377 377 \0 341 001 367 002 003 \0 \0 376 0000496 377 377 005 376 377 377 367 " 344 001 J 353 300 \t U 252 0000512 Am I right that seeing `GRUB' in bytes 383-386 (decimal) is proof that I did install grub in the MBR? thanks, allan -- gentoo-user@lists.gentoo.org mailing list
